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Application of Group Theory in Application of Group Theory in Particle Physics using the Young Particle Physics using the Young Tableaux Method Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Akhtar Mahmood ( Assistant Professor of Assistant Professor of Physics) Physics) Jack Dougherty ( Jack Dougherty ( Undergraduate Research Undergraduate Research Assistant) Assistant) Edinboro University of Pennsylvania Edinboro University of Pennsylvania

Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

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Page 1: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Application of Group Theory in Application of Group Theory in Particle Physics using the Young Particle Physics using the Young

Tableaux MethodTableaux Method

2006 PASSHE-MA CONFERENCE (March 31 – April 1)2006 PASSHE-MA CONFERENCE (March 31 – April 1)

Akhtar Mahmood (Akhtar Mahmood (Assistant Professor of Physics)Assistant Professor of Physics)Jack Dougherty (Jack Dougherty (Undergraduate Research Assistant)Undergraduate Research Assistant)

Edinboro University of PennsylvaniaEdinboro University of Pennsylvania

Page 2: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 3: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Maury Gell-MannMaury Gell-Mann ((at CalTechat CalTech))Proposed the existence of Proposed the existence of Quarks as the fundamental Quarks as the fundamental building blocks of matter in building blocks of matter in the late 1960s.the late 1960s. Awarded Nobel Prize in Awarded Nobel Prize in Physics in 1969 for the Physics in 1969 for the development of the Quark development of the Quark model, and the classification model, and the classification of elementary particles.of elementary particles.

FlavorFlavor Q/eQ/e

uu +2/3+2/3

dd -1/3-1/3

ss -1/3-1/3

Page 4: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 5: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 6: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Three Families of QuarksThree Families of Quarks

GenerationsGenerations

II IIII IIIIII

Charge Charge ==

-1/3-1/3

dd(down)(down)

ss(strange(strange

))

b b (bottom(bottom

))

Charge Charge ==

+2/3+2/3

uu(up)(up)

c c (charm)(charm)

tt(top)(top)

Also, each quark has a corresponding antiquark.The antiquarks have opposite charge to the quarks

Increasing mass

Page 7: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 8: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 9: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 10: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 11: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

STANDARD MODEL

QUARKS & ANTI-QUARKS

LEPTONS & ANTI-LEPTONS

VECTOR BOSONS

tb

cs

du

tb

cs

du

e e

e e

HH

ZW

Gg

,

,

,,

0

0

MESONS & ANTI-MESONS ( qq ) ( qq )

BARYONS & ANTI-BARYONS (qqq) ( qqq )

PENTAQUARKS & ANTI-PENTAQUARKS ( qqqqq ) ( qqqqq )

HEXAQUARKS & ANTI-HEXAQUARKS (qqqqqq) ( qqqqqq )

HYBRID MESONS & ANTI-HYBRID MESONS ( gqq ) ( qgq )

HYBRID BARYONS & ANTI-HYBRID BARYONS (qqqg ) ( gqqq )

BOUND STATE GLUONS (gg ) (ggg )

Page 12: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

HadronsHadrons- the composites of - the composites of QuarksQuarks

BaryonsBaryons are a composites of three quarks are a composites of three quarks Mesons Mesons are a composites of a quark-antiquark pair are a composites of a quark-antiquark pair

Page 13: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 14: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 15: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Let’s make some more Let’s make some more baryons !baryons !

su

d

Lambda ()Q = 0

M=1116 MeV/c2

su

u

Sigma ()Q = +1

M=1189 MeV/c2

su

d

Sigma ()Q = 0

M=1192 MeV/c2

sd

d

Sigma ()Q = -1

M=1197 MeV/c2

u d s

Q

Mass

+2/3 -1/3 -1/3

Quark up down strange

u u d d ss

~5 [MeV/c2] ~10 [MeV/c2] ~200 [MeV/c2]

Page 16: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

The Quark Configuration of The Quark Configuration of

the Charmed-Strange Baryonthe Charmed-Strange Baryon c

u s

c

d s

c

c 0

c

/(1/ 2) ,(1/ 2) ,(3/ 2)

Page 17: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 18: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 19: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 20: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 21: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 22: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Summary of Young Tableaux Summary of Young Tableaux Method – The SU(N) NotationMethod – The SU(N) Notation

Here N = 2 (for Spin up or down)Here N = 2 (for Spin up or down)

N = 1 to 5 (for quark flavors – N = 1 to 5 (for quark flavors – up, down, strange, charm, up, down, strange, charm,

beauty)beauty)

Page 23: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 24: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Young Tableaux Young Tableaux (Young Diagrams) (Young Diagrams)

In the SU(N) Notation, In the SU(N) Notation, N is denoted by a box.N is denoted by a box.

Page 25: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

(N) - Total Number of (N) - Total Number of Spins or Quark Flavors Spins or Quark Flavors

Page 26: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

The conjugate representation NThe conjugate representation Nfor Anti-quarks.for Anti-quarks. Denoted by a Denoted by a

column of N-1 boxes.column of N-1 boxes.If N = 4, then the conjugate If N = 4, then the conjugate representation of N is with 3 representation of N is with 3

boxes.boxes.

Page 27: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

RULES FOR SU(N) RULES FOR SU(N)

REPRESENTATION REPRESENTATION

Page 28: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

No row is longer than No row is longer than any above it. Descending rows any above it. Descending rows

are always shorter than the are always shorter than the ones above them.ones above them.

AllowedAllowed Not AllowedNot Allowed

Page 29: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Box values always increase Box values always increase from left to right in a rowfrom left to right in a row

3 544

Page 30: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NOT PERMITTEDNOT PERMITTED

3 142

Page 31: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Going from left to right, Going from left to right, no box- columns can be longer no box- columns can be longer

than the previous one.than the previous one.

AllowedAllowed Not AllowedNot Allowed AllowedAllowed

Page 32: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Box values always decrease Box values always decrease from top to bottom in a columnfrom top to bottom in a column

3

2

1

Page 33: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NOT PERMITTEDNOT PERMITTED

3

4

5

Page 34: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

PERMITTEDPERMITTED

4 5

2

6

3

1

4

7

5

3

Page 35: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NOT PERMITTEDNOT PERMITTED

3 4

3

5

43

4

6

5

3

Page 36: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Fully Symmetric ConfigurationFully Symmetric Configuration

SS = =

Page 37: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Mixed Symmetric ConfigurationMixed Symmetric Configuration

MM = =

Page 38: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Fully Anti-symmetric ConfigurationFully Anti-symmetric Configuration

AA = =

Page 39: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

WHAT IS THE NET VALUE OF A WHAT IS THE NET VALUE OF A VALID CONFIGURATION ?VALID CONFIGURATION ?

A RATIO OF…..A RATIO OF…..

Product of Box Values (n)Product of Box Values (n)

VV= -----------------------------------= ----------------------------------- Product of Possible “Hook” Values (h) Product of Possible “Hook” Values (h)

Page 40: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

A numerator (n) A numerator (n) is defined as the product of the is defined as the product of the

actual value each consecutive box.actual value each consecutive box.

n = 3 n = 3 4 4 5 = 60 5 = 60

3 4 5

FOR N = 3FOR N = 3

Page 41: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

A denominator is defined as A denominator is defined as the product of all of the the product of all of the

possible consecutive “hooks”possible consecutive “hooks”

HooksHooks

h = 3 h = 3 2 2 1 = 6 1 = 6

Page 42: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

FOR N = 3, IN THIS FOR N = 3, IN THIS PARTICULAR CONFIGURATION PARTICULAR CONFIGURATION

3 3 4 4 5 5 V = ------------V = ------------ = 10= 10 3 3 2 2 1 1

Page 43: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

LET’S CALCULATE THE LET’S CALCULATE THE VALUE OF THIS VALUE OF THIS

CONFIGURATION FOR ANY CONFIGURATION FOR ANY “N” !“N” !

N N+1

NN-1

Page 44: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

““n” is defined as the product n” is defined as the product of the actual value of each of the actual value of each

consecutive box.consecutive box.

n = ( each box values ) (product)

 n = ( N )( N + 1 )( N – 1 )( N )

Page 45: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

FOR N = 3FOR N = 3

3 4

32

n = 3 n = 3 4 4 2 2 3 = 72 3 = 72

Page 46: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

““h” is defined as the product h” is defined as the product of the possible “hook” values of of the possible “hook” values of

each consecutive box-each consecutive box-configurationconfiguration

n = (“hook” value of each box-configuration)

(product)  

Page 47: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

h = 3 h = 3 2 2 2 2 1 = 12 1 = 12

Page 48: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

FOR N = 3, IN THIS FOR N = 3, IN THIS PARTICULAR CONFIGURATION PARTICULAR CONFIGURATION

3 3 4 4 2 2 3 3 V = ----------------V = ---------------- = 6= 6 3 3 2 2 2 2 1 1

Page 49: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Another Example (For N=3)Another Example (For N=3)

n = 3 n = 3 4 4 2 = 24 2 = 24

h = 3 h = 3 1 1 1 = 3 1 = 3

V = 24 V = 24 3 = 8 3 = 8MM

3 4

2

Page 50: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

|Baryon(Qq|Baryon(Qq11qq22))AA=|Space=|SpaceSS|Color|ColorAASpinSpinS,MS,MAS,MS,MAFlavorFlavorS,MS,MAS,MS,MA

COMPLETE BARYON WAVE FUNCTIONCOMPLETE BARYON WAVE FUNCTION

q2

l

q1

q3

SIZE = 1 fmSIZE = 1 fm

Page 51: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Space is described by the Space is described by the Parity (P) of the Baryon Parity (P) of the Baryon

which is defined as the state which is defined as the state of the particleof the particle

P ≡ (-1P ≡ (-1)(l + l´))(l + l´)

In the ground state l = 0 and l´=0In the ground state l = 0 and l´=0

P = (-1) P = (-1)0 0 = += +

Page 52: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

(+) (+) Ground state (l = 0 and l’ = 0) Ground state (l = 0 and l’ = 0)

(-)(-) Excited state (l = 1 and Excited state (l = 1 and l’ = 0 or (l = 0 and l’ = 1)l’ = 0 or (l = 0 and l’ = 1)

Page 53: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

ColorColorThe strong force that binds the quarks with The strong force that binds the quarks with

gluons carry “color charge” i.e. gluons carry “color charge” i.e. redred, , greengreen and and blueblue..

Since a baryon is a Fermion, it must obey Since a baryon is a Fermion, it must obey Pauli’s Exclusion Principle, and hence the color Pauli’s Exclusion Principle, and hence the color charge combination must be anti-symmetric charge combination must be anti-symmetric

for all baryons.for all baryons.

Page 54: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

COLOR: From the SU(3)COLOR: From the SU(3)c c Color Color Symmetry Group Symmetry Group

3 3 3 10 8 8 1C C C S MS MA A

Only the color combination is validOnly the color combination is valid - Color Singlet (Colorless)- Color Singlet (Colorless)

1A

1A

Page 55: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

The 3 quark color are Red, The 3 quark color are Red, Green and BlueGreen and Blue

3 3 3 3 5 3

2

4 4 3 4

2

3

2

1

3 4 5

3 2 1

3 4 2

3 1 1

3 4 2

3 1 1

3 2 1

3 2 1

10S 8MS 8MA 1A

1 2 3 1 23

1 32

1

2

3

Page 56: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

11A A Color Singlet Color Singlet Colorless Colorless

R + G + B = White (Colorless) R + G + B = White (Colorless)

1166RGB-GRB+BRG-RBG+GBR-BGRRGB-GRB+BRG-RBG+GBR-BGRAA

Page 57: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Total Angular Momentum Total Angular Momentum ((JJPP))

J J L + S where L = l +l’ and L + S where L = l +l’ and P P (-1) (-1)(l +l´)(l +l´)

Each quark has a Spin (S) of ½ and Each quark has a Spin (S) of ½ and a Ja JPP of ½ of ½++..

WHAT ARE POSSIBLE WHAT ARE POSSIBLE JJPP VALUES OF VALUES OF A BARYON ?A BARYON ?

Page 58: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

q2

l

q1

q31 1

(0 1 )2 2

/1 1 1 1 1 3

(0 1 ) 0 12 2 2 2 2 2MA MS S

In Ground In Ground StateState

l = 0 and l = 0 and l’ =0l’ =0

Page 59: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

q1(½)+ q2

(½)+

{q1q2}(1)+ q3(½)+

{q1q2q3}(3/2)+

If q1 q2 q3 (3 Distinct JP Values)

{q1q2}q3(1/2)+/

[q1q2]q3(1/2)+

q1 or q2 = u, d, s

q3 = c, b

(Symmetric)

(Mixed-Symmetric)

(Mixed-Antisymmetric)

[q1q2](0)+ q3(½)+

Page 60: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

The Quark Configuration of the The Quark Configuration of the

Charmed-Strange Baryon in the Ground StateCharmed-Strange Baryon in the Ground State c

u s

c

d s

c

c 0

c

/(1/ 2) ,(1/ 2) ,(3/ 2)

Page 61: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

q1(½)+ q2

(½)+

{q1q2}(1)+ q3(½)+

{q1q2q3}(3/2)+

If q1= q2 q3 (2 Distinct JP Values)

{q1q2}q3(1/2)+/

q1 or q2 = u, d, s

q3 = c, b

(Symmetric)

(Mixed-Symmetric)

Page 62: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

q1(½)+ q2

(½)+

{q1q2}(1)+ q3(½)+

{q1q2q3}(3/2)+

If q1= q2= q3 (1 Distinct JP Value)

q1 or q2 = u, d, s

q3 = c, b

(Symmetric)

Page 63: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SPIN: From the SU(2)SPIN: From the SU(2)S S Spin Spin Symmetry Group Symmetry Group

2 2 2 4 2 2S MS MA

Three distinct spin states for each of the Three Three distinct spin states for each of the Three distinct Jdistinct Jpp values. values.

JJpp(3/2)(3/2)+ + 4 4S S

JJpp(1/2)(1/2)+/+/ 2 2MSMS

JJpp(1/2)(1/2)++ 2 2MAMA

Page 64: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SPIN CONFIGURATION USING SPIN CONFIGURATION USING YOUNG’S TABLEAUX YOUNG’S TABLEAUX

2 2 2 2 4 2

1

3 3 2 3

1

2

1

0

2 3 4

3 2 1

2 3 1

3 1 1

2 1 3

3 1 1

2 1 0

3 2 1

4S 2MS 2MA 0A

1 2 3 1 23

1 32

1

2

3

Page 65: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

4 separate Spin orientations (S, S4 separate Spin orientations (S, Szz) for S = 3/2) for S = 3/2

Sz

+3/2

+1/2

-1/2

-3/2

(S, S(S, Szz) or (J, J) or (J, Jzz) for) for

SSzz = = 44S S and and J = J = (3/2)(3/2)++

(3/2, +3/2)(3/2, +3/2)(3/2, +1/2)(3/2, +1/2) (3/2, -1/2) (3/2, -1/2)(3/2, -3/2)(3/2, -3/2)

Page 66: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

2 separate Spin orientations (S, S2 separate Spin orientations (S, Szz) for S = 1/2) for S = 1/2

Sz

+1/2

-1/2

(S, S(S, Szz) or (J, J) or (J, Jzz) for) for

SSzz = = 22MS MS OR OR SSzz = = 22MAMA

and and

J = J = (1/2)(1/2)+/ +/ OR OR J =J =(1/2)(1/2)+ +

(1/2, +1/2)(1/2, +1/2)(1/2, -1/2)(1/2, -1/2)

(1/2, +1/2)(1/2, +1/2)(1/2, -1/2)(1/2, -1/2)

Page 67: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

|Spin|SpinS S FlavorFlavorSS

||SpinSpinMS MS FlavorFlavorMSMS

||SpinSpinMA MA FlavorFlavorMAMA

Page 68: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JJPP = (3/2) = (3/2)++

|Spin|SpinS S |Flavor |FlavorS S |4|4S S |(3/2) |(3/2)++S S

||SS | |{{qq33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}}}S S (3/2,+3/2)(3/2,+3/2)

||1/√3(1/√3( + + + + ))SS | |{{qq33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}}}S S (3/2,+1/2)(3/2,+1/2)

||1/√3(1/√3( + + + + ))SS | |{{qq33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}}}S S (3/2,-1/2)(3/2,-1/2)

||SS | |{{qq33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}}}S S (3/2,-3/2)(3/2,-3/2)

Page 69: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JJPP = (1/2) = (1/2)+/+/

|Spin|SpinMS MS |Flavor |FlavorMS MS |2|2MS MS |(1/2) |(1/2)+/+/MSMS

||1/√6(-1/√6(- - - + 2 + 2 ))MSMS |q |q33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}MS MS (1/2,+1/2)(1/2,+1/2)

||1/√6(+1/√6(+ + + - 2 - 2 ))MSMS |q |q33 1/√2 {1/√2 {qq11qq2 2 ++ qq22qq11}}MS MS (1/2,-1/2)(1/2,-1/2)

Page 70: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JJPP = (1/2) = (1/2)++

|Spin|SpinMA MA |Flavor |FlavorMA MA |2|2MA MA |(1/2) |(1/2)+/+/MAMA

||1/√2 1/√2 (( - - ))MAMA |q |q33 1/√2 {1/√2 {qq11qq2 2 -- qq22qq11}}MA MA (1/2,+1/2)(1/2,+1/2)

||1/√2 1/√2 (( - - ))MA MA |q |q33 1/√2 {1/√2 {qq11qq2 2 -- qq22qq11}}MA MA (1/2,-1/2)(1/2,-1/2)

Page 71: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Quark Mass and ChargeQuark Mass and Charge

FLAVOR FLAVOR MASS (GeV)MASS (GeV) ELECTRIC CHARGE ELECTRIC CHARGE UP   0.003   + 2/3UP   0.003   + 2/3 DOWN   0.006   - 1/3 DOWN   0.006   - 1/3 STRANGE   0.1   - 1/3STRANGE   0.1   - 1/3 CHARM   1.3   + 2/3 CHARM   1.3   + 2/3 BOTTOM   4.3   - 1/3BOTTOM   4.3   - 1/3 TOP   175   + 2/3TOP   175   + 2/3

Page 72: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

QUANTUM PROPERTIES OF BARYONSQUANTUM PROPERTIES OF BARYONS

Baryon #:Baryon #: B = 1 (Each Quark has a Baryon # B = 1 (Each Quark has a Baryon # of 1/3)of 1/3)

Isospin:Isospin: II33 = Q -½(B+s+c+b+t) = Q -½(B+s+c+b+t)

Hypercharge:Hypercharge: Y = 2(Q - IY = 2(Q - I33) - (c ) - (c b b t) t)

Page 73: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Ordinary matter – SU(2)Ordinary matter – SU(2)FF Symmetry Symmetry Group - only up and down quarks Group - only up and down quarks

(N(NFF =2) =2)

2 2 2 2 4 2

1

3 3 2 3

1

2

1

0

2 3 4

3 2 1

2 3 1

3 1 1

2 1 3

3 1 1

2 1 0

3 2 1

4S 2MS 2MA 0A

1 2 3 1 23

1 32

1

2

3

Page 74: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

For NF = 2 (u and d Quarks), We can have 4 Baryons with JP (3/2)+ and 2 Baryons with JP (1/2)+/

Particle quarks B Q s c b t Y I3 JP

p uud 1 0 0 0 0 0 1 -1/2 1/2+/

n udd 1 1 0 0 0 0 1 1/2 1/2+/

ddd 1 -1 0 0 0 0 1 -3/2 3/2+

udd 1 0 0 0 0 0 1 -1/2 3/2+

uud 1 1 0 0 0 0 1 1/2 3/2+

uuu 1 2 0 0 0 0 1 3/2 3/2+

Page 75: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

u(½)+ u(½)+

{uu}(1)+ d(½)+

+ (3/2)+

If q1= q2 q3 (2 Distinct JP Values)

p (1/2)+/

q1 or q2 = u, u

q3 = d

{uud}(Symmetric)

u{ud}(Mixed-Symmetric)

Page 76: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

d(½)+ d(½)+

{dd}(1)+ u(½)+

0 (3/2)+

If q1= q2 q3 (2 Distinct JP Values)

n (1/2)+/

q1 or q2 = d, d

q3 = d

{ddu}(Symmetric)

u{dd}(Mixed-Symmetric)

Page 77: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Light Baryons – SU(3)Light Baryons – SU(3)FF Symmetry Symmetry Group - up, down, and strange Group - up, down, and strange

quarks (Nquarks (NF F = 3)= 3)

3 3 3 3 5 3

2

4 4

3 4 5

3 2 1

3 4 2

3 1 1

10S 8M

1 2 3 1 23

Page 78: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NF = 3, in the SU(3) Symmetry Group (u, d and s Quarks)

We can have 10 Baryons with JP (3/2)+

and

8 Baryons with JP (1/2)+ and (1/2)+/

TOTAL # OF BARYONS THAT CAN BE CONSTRUCTED WITH u, d AND s QUARKS = 18

Page 79: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks B Q s c b t Y I3 JP

dds 1 -1 -1 0 0 0 0 -1 1/2+/

uds 1 0 -1 0 0 0 0 0 1/2+/

uus 1 1 -1 0 0 0 0 1 1/2+/

dss 1 -1 -2 0 0 0 -1 -3/2 1/2+/

uss 1 0 -2 0 0 0 -1 1/2 1/2+/

uds 1 0 -3 0 0 0 0 0 1/2+

dds 1 -1 -1 0 0 0 0 -1 3/2+

uds 1 0 -1 0 0 0 0 0 3/2+

uus 1 1 -1 0 0 0 0 1 3/2+

dss 1 -1 -2 0 0 0 -1 -3/2 3/2+

uss 1 0 -2 0 0 0 -1 1/2 3/2+

sss 1 -1 -3 0 0 0 -2 0 3/2+

Page 80: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks B Q s c b t Y I3 JP

p uud 1 0 0 0 0 0 1 -1/2 1/2+/

n udd 1 1 0 0 0 0 1 1/2 1/2+/

ddd 1 -1 0 0 0 0 1 -3/2 3/2+

udd 1 0 0 0 0 0 1 -1/2 3/2+

uud 1 1 0 0 0 0 1 1/2 3/2+

uuu 1 2 0 0 0 0 1 3/2 3/2+

Particle quarks B Q s c b t Y I3 JP

dds 1 -1 -1 0 0 0 0 -1 1/2+/

uds 1 0 -1 0 0 0 0 0 1/2+/

uus 1 1 -1 0 0 0 0 1 1/2+/

dss 1 -1 -2 0 0 0 -1 -3/2 1/2+/

uss 1 0 -2 0 0 0 -1 1/2 1/2+/

uds 1 0 -3 0 0 0 0 0 1/2+

dds 1 -1 -1 0 0 0 0 -1 3/2+

uds 1 0 -1 0 0 0 0 0 3/2+

uus 1 1 -1 0 0 0 0 1 3/2+

dss 1 -1 -2 0 0 0 -1 -3/2 3/2+

uss 1 0 -2 0 0 0 -1 1/2 3/2+

sss 1 -1 -3 0 0 0 -2 0 3/2+

Page 81: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

u(½)+ d(½)+

{ud}(1)+ s(½)+

If q1 q2 q3 (3 Distinct JP Values)

0 (1/2)+

q1 or q2 = u, d

q3 = s

[ud](0)+ s(½)+

[sud]

(Mixed-AntiSymmetric)

s{ud}

(Mixed-Symmetric)

0 (1/2)+/

{sud}

(Symmetric)

*0 (3/2)+

Page 82: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (1/2)+

8 Baryons

Y Axis – Y (Hypercharge)

X Axis – I3 or Iz

(z – Component of Isospin)

Page 83: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (3/2)+

10 Baryons

Y Axis – Y (Hypercharge)

X Axis – I3 or Iz

(z – Component of Isospin)

Page 84: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

1 m1 maa

Page 85: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (1/2)+

8 Baryons - 7 with JP (1/2)+/ and 1 with JP (1/2)+

Y Axis – Y (Hypercharge)

X Axis – I3 or Iz

(z – Component of Isospin)

Page 86: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NF = 3, in the SU(3) Symmetry Group (u, d and s Quarks)

From SU(3) we can have a total of 18 Baryons – 10 with JP (3/2)+ and 7 with

JP (1/2)+/ and 1 with JP (1/2)+

Page 87: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 88: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 89: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (3/2)+

10 Baryons with JP (3/2)+

Y Axis – Y (Hypercharge)

X Axis – I3 or Iz

(z – Component of Isospin)

Page 90: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Charmed Baryons – SU(4)Charmed Baryons – SU(4)FF Symmetry Symmetry Group - up, down, strange and charm Group - up, down, strange and charm

quarks (Nquarks (NF F = 4)= 4)

4 4 4 4 6 4

3

5 5

4 5 6

3 2 1

4 5 3

3 1 1

20/S 20M

1 2 3 1 23

Page 91: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NF = 4, in the SU(4) Symmetry Group (u, d and s Quarks)

We can have 20 Baryons with JP (3/2)+

and

20 Baryons with JP (1/2)+ and (1/2)+/

TOTAL # OF BARYONS THAT CAN BE CONSTRUCTED WITH u, d, s AND c QUARKS = 40

Page 92: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks B Q s c b t Y I3 Jp

c0

cdd 1 0 0 1 0 0 1 -1 1/2+/

c+

cud 1 1 0 1 0 0 1 0 1/2+

c+

cud 1 1 0 1 0 0 1 0 1/2+/

c++

cuu 1 2 0 1 0 0 1 1 1/2+/

c0

csd 1 0 -1 1 0 0 0 - 1/2 1/2+

c/0

csd 1 0 -1 1 0 0 0 - 1/2 1/2+/

c+

csu 1 1 -1 1 0 0 0 1/2 1/2+

c/+

csu 1 1 -1 1 0 0 0 1/2 1/2+/

c0

css 1 0 -2 1 0 0 -1 0 1/2+/

cc+

ccd 1 1 0 2 0 0 1 - 1/2 1/2+/

cc++

ccu 1 2 0 2 0 0 1 1/2 1/2+/

cc+

ccs 1 2 -1 2 0 0 2 0 1/2+/

c*0

cdd 1 0 0 1 0 0 1 -1 3/2+

c*+

cud 1 1 0 1 0 0 1 0 3/2+

c*++

cuu 1 2 0 1 0 0 1 1 3/2+

c*0

csd 1 0 -1 1 0 0 0 - 1/2 3/2+

c*+

csu 1 1 -1 1 0 0 0 1/2 3/2+

c*0

css 1 0 -2 1 0 0 -1 0 3/2+

cc*+

ccd 1 1 0 2 0 0 1 - 1/2 3/2+

cc*++

ccu 1 2 0 2 0 0 1 1/2 3/2+

cc*+

ccs 1 1 -1 2 0 0 0 0 3/2+

ccc++

ccc 1 2 0 3 0 0 1 0 3/2+

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Page 95: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

BUT HOW MANY BARYONS WAS CARRIED OVER FROM THE SU(3) TO THE SU(4) SYMMETRY GROUP?

RECALL: From SU(3) we can have a total of 18

Baryons – 10 with JP (3/2)+ and 8 with JP (1/2)+ [7 with JP (1/2)+/ and 1 with JP (1/2)+].

IN SU(4): A Total of 40 Baryons - 20 with JP (3/2)+ , and 20 with JP (1/2)+/ and 20 JP (1/2)+.

NEW – Actually, 10 Charmed Baryons with JP (3/2)+

and 12 Charmed Baryons with JP (1/2)+.

BUT How many Charmed Baryons with JP (1/2)+/ and with JP (1/2)+ ??

Page 96: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
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CC

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Page 98: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

3 m3 maa

Page 99: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

How many Actual Charmed Baryons with JP (1/2)+/ and with JP (1/2)+ ?

9 with JP (1/2)+/ and

3 with JP (1/2)+

TOTAL = 12

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Page 101: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

The Quark Configuration of the The Quark Configuration of the

Charmed-Strange Baryon in the Ground StateCharmed-Strange Baryon in the Ground State c

u s

c

d s

c

c 0

c

/(1/ 2) ,(1/ 2) ,(3/ 2)

Page 102: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

u(½)+ s(½)+

{us}(1)+ c(½)+

If q1 q2 q3 (3 Distinct JP Values)

(1/2)+

q1 or q2 = u, s

q3 = c

[us](0)+ c(½)+

[csu]

(Mixed-AntiSymmetric)

c{su}

(Mixed-Symmetric)

(1/2)+/

{csu}

(Symmetric)

(3/2)+*+c

+/c

+c

Page 103: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (1/2)+

[csu]

(Mixed- AntiSymmetric)

Mass:

2465.7 1.3

MeV/c2

CLEO Experiment at CESR (Cornell Electron Storage Ring)

+c

Page 104: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (1/2)+/

c{su}

(Mixed-Symmetric)

Mass:

2575.0 2.0

MeV/c2

CLEO Experiment at CESR (Cornell Electron Storage Ring)

+/c

Page 105: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (3/2)+

{csu}

(Symmetric)

Mass:

2644.3 2.1

MeV/c2

CLEO Experiment at CESR (Cornell Electron Storage Ring)

*+c

Page 106: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

d(½)+ s(½)+

{ds}(1)+ c(½)+

If q1 q2 q3 (3 Distinct JP Values)

(1/2)+

q1 or q2 = d, s

q3 = c

[ds](0)+ c(½)+

[csd]

(Mixed-AntiSymmetric)

c{sd}

(Mixed-Symmetric)

(1/2)+/

{csd}

(Symmetric)

(3/2)+*0c

0/c

0c

Page 107: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (1/2)+

[csd]

(Mixed- AntiSymmetric)

Mass:

2468.8 1.2

MeV/c2

0c

CLEO Experiment at CESR (Cornell Electron Storage Ring)

Page 108: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

0/c

JP (1/2)+/

c{sd}

(Mixed-Symmetric)

Mass:

2580.6 2.1

MeV/c2

CLEO Experiment at CESR (Cornell Electron Storage Ring)

Page 109: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

JP (3/2)+

{csd}

(Symmetric)

Mass:

2644.5 1.7

MeV/c2

CLEO Experiment at CESR (Cornell Electron Storage Ring)

*0c

Page 110: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Beauty Baryons – SU(5)Beauty Baryons – SU(5)FF Symmetry Group - up, down, Symmetry Group - up, down,

strange, charm, and beauty quarks strange, charm, and beauty quarks (N(NFF = 5) = 5)

5 5 5 5 7 5

4

6 6

5 6 7

3 2 1

5 6 4

3 1 1

35S 40M

1 2 3 1 23

Page 111: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

BUT HOW MANY BARYONS WAS CARRIED OVER FROM THE SU(3) TO SU(4) TO THE SU(5) SYMMETRY

GROUP?

RECALL: From SU(3) we can have a total of 18

Baryons – 10 with JP (3/2)+ and 8 with JP (1/2)+ [Actually, 7 with JP (1/2)+/ and 1 with JP

(1/2)+].

In SU(4): Total of 40 Baryons - 20 with JP (3/2)+ , and 20 with JP (1/2)+/ and 20 JP (1/2)+.

But, 10 Charmed Baryons with JP (3/2)+ and 12 Actual Charmed Baryons with JP (1/2)+ [Actually, 9

with JP (1/2)+/ and 3 with JP (1/2)+].

In SU(5): Total of 75 Baryons - 35 with JP (3/2)+ , and 40 with JP (1/2)+.

Page 112: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks Q s c b t Y I3 JpB

b- bdd -1 0 0 -1 0 -1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+ 1

b+ buu 1 0 0 -1 0 1 1 1/2+/ 1

b- bsd -1 -1 0 -1 0 0 - 1/2 1/2+ 1

b/- bsd -1 -1 0 -1 0 0 - 1/2 1/2+/ 1

b0 bsu 0 -1 0 -1 0 0 1/2 1/2+ 1

b/0 bsu 0 -1 0 -1 0 0 1/2 1/2+/ 1

b- bss -1 -2 0 -1 0 -1 0 1/2+/ 1

bc0 bcd 0 0 1 -1 0 1 - 1/2 1/2+ 1

bc/0 bcd 0 0 1 -1 0 1 - 1/2 1/2+/ 1

bc+ bcu 1 0 1 -1 0 1 1/2 1/2+ 1

bc/+ bcu 1 0 1 -1 0 1 1/2 1/2+/ 1

bc0 bcs 0 -1 1 -1 0 0 0 1/2+ 1

bc/0 bcs 0 -1 1 -1 0 0 0 1/2+/ 1

bcc+ bcc 1 0 2 -1 0 1 0 1/2+/ 1

bbd- bbd -1 0 0 -2 0 1 - 1/2 1/2+/ 1

bbu0 bbu 0 0 0 -2 0 1 1/2 1/2+/ 1

bbs- bbs -1 -1 0 -2 0 0 0 1/2+/ 1

bbc0 bbc 1 0 1 -2 0 3 0 1/2+/ 1

b*- bdd -1 0 0 -1 0 1 -1 3/2+ 1

b*0 bud 0 0 0 -1 0 1 0 3/2+ 1

b*+ buu 1 0 0 -1 0 1 1 3/2+ 1

b*- bsd -1 -1 0 -1 0 0 - 1/2 3/2+ 1

b*0 bsu 0 -1 0 -1 0 0 1/2 3/2+ 1

b*- bss -1 -2 0 -1 0 -1 0 3/2+ 1

bc*0 bcd 0 0 1 -1 0 1 - 1/2 3/2+ 1

bc*+ bcu 1 0 1 -1 0 1 1/2 3/2+ 1

bc*0 bcs 0 -1 1 -1 0 0 0 3/2+ 1

bcc*+ bcc 1 0 2 -1 0 1 0 3/2+ 1

bbd*- bbd -1 0 0 -2 0 1 - 1/2 3/2+ 1

bbu*0 bbu 0 0 0 -2 0 1 1/2 3/2+ 1

bbs*- bbs -1 -1 0 -2 0 0 0 3/2+ 1

bbc*0 bbc 1 0 1 -2 0 3 0 3/2+ 1

bbb- bbb -1 0 0 -3 0 1 0 3/2+ 1

Page 113: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

NEW: How many actual Beauty Baryons - 15 with JP (3/2)+ and 20 with

JP (1/2)+ ?

TOTAL # OF BEAUTY BARYONS = 35

How many Beauty Baryons with JP (1/2)+/ and with JP (1/2)+ ??

Page 114: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
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Page 116: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

How many actual Beauty Baryons with JP (1/2)+/ and with JP (1/2)+ ?

14 with JP (1/2)+/ and

6 with JP (1/2)+

TOTAL = 20

Page 117: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Beauty Baryons – SU(5)Beauty Baryons – SU(5)FF Symmetry Symmetry Group - up, down, strange, charm, and Group - up, down, strange, charm, and

beauty quarks (Nbeauty quarks (NFF = 5) = 5)

AXIS PROBLEM !!AXIS PROBLEM !!

Need a 4Need a 4thth Axis ?? Axis ??

Page 118: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

No Possible SU(5) No Possible SU(5) Representations Representations

can be added to the Existing can be added to the Existing Scheme.Scheme.

We can’t physically add a 4th We can’t physically add a 4th Beauty axis to the SU(4) Beauty axis to the SU(4) representation diagram!representation diagram!

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AS OF TODAY NO SU(5)AS OF TODAY NO SU(5)FF QUARK REPRESENTATION QUARK REPRESENTATION

EXITS !!EXITS !!

Page 122: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

My Solution !My Solution !

Page 123: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

CONSIDER A NEW CONSIDER A NEW TYPE TYPE OF AXIS INSTEAD OF AXIS INSTEAD OF THE TRADITIONAL OF THE TRADITIONAL “CHARM”“CHARM” AXIS IN AXIS IN

THE Z-DIRECTION.THE Z-DIRECTION.

BUT HOW ??BUT HOW ??

FLAVOR AXIS !! FLAVOR AXIS !! (A NEW QUANTUM NUMBER (A NEW QUANTUM NUMBER !)!)

F = 1 FOR EACH HEAVY QUARKF = 1 FOR EACH HEAVY QUARK(CHARM AND BEAUTY)(CHARM AND BEAUTY)

F = 0 FOR EACH LIGHT QUARKF = 0 FOR EACH LIGHT QUARK(UP, DOWN AND STRANGE)(UP, DOWN AND STRANGE)

Page 124: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

HOW DOES THIS FLAVOR AXIS HOW DOES THIS FLAVOR AXIS ACTUALLY WORK – ACTUALLY WORK – THE FLAVOR THE FLAVOR

QUANTUM #QUANTUM #

F = 3 (ccc) or (bbb) or (bcc) or (bbc) etc…F = 3 (ccc) or (bbb) or (bcc) or (bbc) etc…

F = 2 (ccu) or (ccs) or (ccd) or (bbu) or (bbs) or F = 2 (ccu) or (ccs) or (ccd) or (bbu) or (bbs) or (bbd) or (bcu) or (bcs) etc…(bbd) or (bcu) or (bcs) etc…

F = 1 (cuu) or (css) or (cdd) or (csu) or (bbu) or F = 1 (cuu) or (css) or (cdd) or (csu) or (bbu) or (bss) or (bsu) or (bdd) etc…(bss) or (bsu) or (bdd) etc…

F = 0 (uuu) or (sss) or (ddd) or (sud) or (uud) or F = 0 (uuu) or (sss) or (ddd) or (sud) or (uud) or (ddu) or (suu) or (ssu) etc…(ddu) or (suu) or (ssu) etc…

Page 125: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

FF

YY

II33

Page 126: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(3) Light Baryons (u, d and SU(3) Light Baryons (u, d and s)s)

II33

YY

8 Baryons

Page 127: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(3) Light Baryons (u, d and SU(3) Light Baryons (u, d and s)s)

II33

YY

10 Baryons

Page 128: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

3 m3 maa

Page 129: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

CC

II33

YY

Page 130: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(4) Charmed SU(4) Charmed BaryonsBaryons

Page 131: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 132: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

CC

II33

YY

Page 133: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(4) Charmed SU(4) Charmed BaryonsBaryons

Page 134: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Beauty Baryons – SU(5)Beauty Baryons – SU(5)FF Symmetry Group - up, down, Symmetry Group - up, down,

strange, charm, and beauty quarks strange, charm, and beauty quarks (N(NFF = 5) = 5)

5 5 5 5 7 5

4

6 6

5 6 7

3 2 1

5 6 4

3 1 1

35S 40M

1 2 3 1 23

Page 135: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 136: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 137: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 138: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 139: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 140: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks Q s c b t Y I3 JpB

b- bdd -1 0 0 -1 0 -1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+ 1

b+ buu 1 0 0 -1 0 1 1 1/2+/ 1

b- bsd -1 -1 0 -1 0 0 - 1/2 1/2+ 1

b/- bsd -1 -1 0 -1 0 0 - 1/2 1/2+/ 1

b0 bsu 0 -1 0 -1 0 0 1/2 1/2+ 1

b/0 bsu 0 -1 0 -1 0 0 1/2 1/2+/ 1

b- bss -1 -2 0 -1 0 -1 0 1/2+/ 1

bc0 bcd 0 0 1 -1 0 1 - 1/2 1/2+ 1

bc/0 bcd 0 0 1 -1 0 1 - 1/2 1/2+/ 1

bc+ bcu 1 0 1 -1 0 1 1/2 1/2+ 1

bc/+ bcu 1 0 1 -1 0 1 1/2 1/2+/ 1

bc0 bcs 0 -1 1 -1 0 0 0 1/2+ 1

bc/0 bcs 0 -1 1 -1 0 0 0 1/2+/ 1

bcc+ bcc 1 0 2 -1 0 1 0 1/2+/ 1

bbd- bbd -1 0 0 -2 0 1 - 1/2 1/2+/ 1

bbu0 bbu 0 0 0 -2 0 1 1/2 1/2+/ 1

bbs- bbs -1 -1 0 -2 0 0 0 1/2+/ 1

bbc0 bbc 1 0 1 -2 0 3 0 1/2+/ 1

b*- bdd -1 0 0 -1 0 1 -1 3/2+ 1

b*0 bud 0 0 0 -1 0 1 0 3/2+ 1

b*+ buu 1 0 0 -1 0 1 1 3/2+ 1

b*- bsd -1 -1 0 -1 0 0 - 1/2 3/2+ 1

b*0 bsu 0 -1 0 -1 0 0 1/2 3/2+ 1

b*- bss -1 -2 0 -1 0 -1 0 3/2+ 1

bc*0 bcd 0 0 1 -1 0 1 - 1/2 3/2+ 1

bc*+ bcu 1 0 1 -1 0 1 1/2 3/2+ 1

bc*0 bcs 0 -1 1 -1 0 0 0 3/2+ 1

bcc*+ bcc 1 0 2 -1 0 1 0 3/2+ 1

bbd*- bbd -1 0 0 -2 0 1 - 1/2 3/2+ 1

bbu*0 bbu 0 0 0 -2 0 1 1/2 3/2+ 1

bbs*- bbs -1 -1 0 -2 0 0 0 3/2+ 1

bbc*0 bbc 1 0 1 -2 0 3 0 3/2+ 1

bbb- bbb -1 0 0 -3 0 1 0 3/2+ 1

Page 141: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(5) Beauty BaryonsSU(5) Beauty Baryons

Page 142: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(5) Beauty BaryonsSU(5) Beauty Baryons

Page 143: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 144: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant
Page 145: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Particle quarks Q s c b t Y I3 JpB

b- bdd -1 0 0 -1 0 -1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+/ 1

b0 bud 0 0 0 -1 0 1 0 1/2+ 1

b+ buu 1 0 0 -1 0 1 1 1/2+/ 1

b- bsd -1 -1 0 -1 0 0 - 1/2 1/2+ 1

b/- bsd -1 -1 0 -1 0 0 - 1/2 1/2+/ 1

b0 bsu 0 -1 0 -1 0 0 1/2 1/2+ 1

b/0 bsu 0 -1 0 -1 0 0 1/2 1/2+/ 1

b- bss -1 -2 0 -1 0 -1 0 1/2+/ 1

bc0 bcd 0 0 1 -1 0 1 - 1/2 1/2+ 1

bc/0 bcd 0 0 1 -1 0 1 - 1/2 1/2+/ 1

bc+ bcu 1 0 1 -1 0 1 1/2 1/2+ 1

bc/+ bcu 1 0 1 -1 0 1 1/2 1/2+/ 1

bc0 bcs 0 -1 1 -1 0 0 0 1/2+ 1

bc/0 bcs 0 -1 1 -1 0 0 0 1/2+/ 1

bcc+ bcc 1 0 2 -1 0 1 0 1/2+/ 1

bbd- bbd -1 0 0 -2 0 1 - 1/2 1/2+/ 1

bbu0 bbu 0 0 0 -2 0 1 1/2 1/2+/ 1

bbs- bbs -1 -1 0 -2 0 0 0 1/2+/ 1

bbc0 bbc 1 0 1 -2 0 3 0 1/2+/ 1

b*- bdd -1 0 0 -1 0 1 -1 3/2+ 1

b*0 bud 0 0 0 -1 0 1 0 3/2+ 1

b*+ buu 1 0 0 -1 0 1 1 3/2+ 1

b*- bsd -1 -1 0 -1 0 0 - 1/2 3/2+ 1

b*0 bsu 0 -1 0 -1 0 0 1/2 3/2+ 1

b*- bss -1 -2 0 -1 0 -1 0 3/2+ 1

bc*0 bcd 0 0 1 -1 0 1 - 1/2 3/2+ 1

bc*+ bcu 1 0 1 -1 0 1 1/2 3/2+ 1

bc*0 bcs 0 -1 1 -1 0 0 0 3/2+ 1

bcc*+ bcc 1 0 2 -1 0 1 0 3/2+ 1

bbd*- bbd -1 0 0 -2 0 1 - 1/2 3/2+ 1

bbu*0 bbu 0 0 0 -2 0 1 1/2 3/2+ 1

bbs*- bbs -1 -1 0 -2 0 0 0 3/2+ 1

bbc*0 bbc 1 0 1 -2 0 3 0 3/2+ 1

bbb- bbb -1 0 0 -3 0 1 0 3/2+ 1

Page 146: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(5) Beauty BaryonsSU(5) Beauty Baryons

Page 147: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

SU(5) Beauty BaryonsSU(5) Beauty Baryons

Page 148: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

Finally A Solution That Finally A Solution That Actually Works!Actually Works!

Paper in progress for Paper in progress for publication in publication in

PRL(Physical Review Letters)PRL(Physical Review Letters)

Page 149: Application of Group Theory in Particle Physics using the Young Tableaux Method 2006 PASSHE-MA CONFERENCE (March 31 – April 1) Akhtar Mahmood ( Assistant

STANDARD MODEL

QUARKS & ANTI-QUARKS

LEPTONS & ANTI-LEPTONS

VECTOR BOSONS

tb

cs

du

tb

cs

du

e e

e e

HH

ZW

Gg

,

,

,,

0

0

MESONS & ANTI-MESONS ( qq ) ( qq )

BARYONS & ANTI-BARYONS (qqq) ( qqq )

PENTAQUARKS & ANTI-PENTAQUARKS ( qqqqq ) ( qqqqq )

HEXAQUARKS & ANTI-HEXAQUARKS (qqqqqq) ( qqqqqq )

HYBRID MESONS & ANTI-HYBRID MESONS ( gqq ) ( qgq )

HYBRID BARYONS & ANTI-HYBRID BARYONS (qqqg ) ( gqqq )

BOUND STATE GLUONS (gg ) (ggg )