arXiv:1109.4144v1
Shuichi KUNORI
Bayram TALI
UPDATE
MonoJet Weekly Meeting
23/06/2013
Inelastic Dark Matter Analysis
Motivation
224/06/2013
pp collision create an ISR and dark sector which goes to If delta mass (delM = Mchistr – Mchi) large enough can go to and some other particles. can be decay in following ways and it can be seen in the CMS;
1) 2)
3) 4)
We are concentrate on third and fourth case so in final beside ISR we have two and two ( or and u ubar it is depend on delM in these cases.
Analysis Strategy
Plans: (1) analysis of decay pions and decay vertex
We are working on Opeartor #4. For delatM= 200, 500, 1000 MeV
- pt(pi+), pt(pi-), pt(pi+pi-), pt(pi+)/pt(pi-) - opening angle of pi+ and pi- - decay vertex R=sqrt(x*x+y*y), z, 2Dplot(R vs z) - pt(chi+chi*) at IP (interaction point) - pt(chichi) ?
(2) test pythia for deltaM=3GeV (and 2Gev). Mass(chi*) 503.0 GeV M(chi) = 500 GeV chi* -> chi + u + ubar
Does Pythia produce hadrons for those u and ubar? If hadronization is done in pythia, check the following.
- multiplicity of hadrons - pt of each hadrons - decay points.
TO D
O
324/06/2013
Use MadGraph5_v1_3_33 for MC signal production / Analysis
Modifications: (1) new partcilce codes
--- DECAY 1000023 4.199420e-18 # Wchie # BR NDA ID1 ID2 ID3 1.00000000E+00 3 1000039 211 -211 # BR(chi~ -> chi pi+
pi-) --- New particle codes: 1000039 - gravitino for stable (chi) 1000023 - for chi*, which
decays to chi pi+ pi-
(2) in py file, for pythia 'MSTJ(22)=3 ! mode of cut-off on decay length, 1=default, 3=max decay lengh', 'PARJ(72)=100000. ! maximum decay length'),
Created LHE FilesChi MASS
100 200 300 400 500
Delta
MASS
0.2 No No No No No
0.3 Yes Yes Yes Yes Yes
0.4 Yes
0.5 Yes Yes Yes Yes Yes
1 Yes Yes Yes Yes Yes
2 Yes Yes Yes Yes Yes
3 Yes Yes Yes Yes Yes
Once try to hadronizetion Pythia could not create Generate Particles
I think it is because of MASS
For other cases it is working.
424/06/2013
Some Info. From Pythia
Unit of vertex point in Pythia: (Pythia manuel page 62)x position of production vertex, in mm. y position of production vertex, in mm. z position of production vertex, in mm.
Output of Pytia; 15 ~Gravitino (difined as chi) 1 1000039 10 0 0 -264.47600 283.74383 797.92612 1018.40277 500.00000 -25110.113 26923.528 75867.710 96736.305 0.000Since then x = -25110.113 mm, y = 26923.528 mm and z = 75867.710 mm
524/06/2013
Some Info. From Pythia Output of Pytia;sN (id)===========15 ~Gravitino 1 1000039 10 0 0 -264.47600 283.74383 797.92612 1018.40277 500.00000 -25110.113 26923.528 75867.710 96736.305 0.000=========== 98 (u) A 12 2 11 252 252 -0.71808 0.95556 6.00339 6.13012 0.33000 -25110.113 26923.528 75867.710 96736.305 0.000 99 (ubar) V 11 -2 12 252 252 -1.27873 1.01769 1.19158 2.04929 0.33000 -25110.113 26923.528 75867.710 96736.305 0.000=========== 252 (string) 11 92 98 253 255 -1.99681 1.97325 7.19498 8.17941 2.69336 -25110.113 26923.528 75867.710 96736.305 0.000 253 (eta) 11 221 252 456 457 -0.72964 1.18797 3.36903 3.68696 0.54745 -25110.113 26923.528 75867.710 96736.305 0.000 254 (rho+) 11 213 252 458 459 -1.24315 0.47050 1.53512 2.17577 0.78140 -25110.113 26923.528 75867.710 96736.305 0.000 255 pi- 1 -211 252 0 0 -0.02403 0.31479 2.29082 2.31668 0.13957 -25110.113 26923.528 75867.710 96736.305 0.000=========== 456 gamma 1 22 253 0 0 -0.48273 0.36165 1.77359 1.87335 0.00000 -25110.113 26923.528 75867.710 96736.305 0.000 457 gamma 1 22 253 0 0 -0.24691 0.82632 1.59544 1.81362 0.00000 -25110.113 26923.528 75867.710 96736.305 0.000 458 pi+ 1 211 254 0 0 -0.21007 -0.02017 -0.00456 0.25305 0.13957 -25110.113 26923.528 75867.710 96736.305 0.000 459 (pi0) 11 111 254 557 558 -1.03308 0.49066 1.53968 1.92272 0.13498 -25110.113 26923.528 75867.710 96736.305 0.000=========== 557 gamma 1 22 459 0 0 -0.31827 0.19280 0.41728 0.55910 0.00000 -25110.114 26923.528 75867.710 96736.305 0.000558 gamma 1 22 459 0 0 -0.71481 0.29786 1.12240 1.36362 0.00000 -25110.114 26923.528 75867.710 96736.305 0.000
Some Info. From CMSSWSequence Number of Particle id 1000039 : 15
Mother ID of Particle id 1000039 -----: 1000023Mother Status of Particle id 1000039 -: 3
VX of Particle id 1000039------------: -2510.77VY of Particle id 1000039------------: 2692.75VZ of Particle id 1000039------------: 7584.84
Sequence Number of Particles with the same vertexes : 15Particle ID with the same vertexes : 1000039Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 98Particle ID with the same vertexes : 2Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 99Particle ID with the same vertexes : -2Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 252Particle ID with the same vertexes : 92Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 253Particle ID with the same vertexes : 221Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 254Particle ID with the same vertexes : 213Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 255Particle ID with the same vertexes : -211Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 456Particle ID with the same vertexes : 22Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 457Particle ID with the same vertexes : 22Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 458Particle ID with the same vertexes : 211Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 459Particle ID with the same vertexes : 111Particle Status with the same vertexes : 2
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 557Particle ID with the same vertexes : 22Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Sequence Number of Particles with the same vertexes : 558Particle ID with the same vertexes : 22Particle Status with the same vertexes : 1
VX of Particulare Particle : -2510.77VY of Particulare Particle : 2692.75VZ of Particulare Particle : 7584.84
Some Info. From Pythia and CMSSW
Output of CMSSW;Sequence Number of Particle id 1000039 : 15
Mother ID of Particle id 1000039 -----: 1000023Mother Status of Particle id 1000039 -: 3
VX of Particle id 1000039------------: -2510.77VY of Particle id 1000039------------: 2692.75VZ of Particle id 1000039------------: 7584.84
Unlike Pythia CMSSW results are in cm so, x = -2510.77 cm, y = 2692.75 cm and z = 7584.84 cm
On the other hand x, y and z are not exactly the same there is a difference between those Pythia: x = -25110.113 mm, y = 26923.528 mm z = 75867.710 mm CMSSW: x = -2510.77 cm, y = 2692.75 cm z = 7584.84 cm
Output of Pytia; 15 ~Gravitino (difined as chi) 1 1000039 10 0 0 -264.47600 283.74383 797.92612 1018.40277 500.00000 -25110.113 26923.528 75867.710 96736.305 0.000
Since then x = -25110.113 mm, y = 26923.528 mm and z = 75867.710 mm
824/06/2013
Lets Concentrate on Analysis
Plans: These Results Just From Generated Particle Level.We want to see some basic information. (1) analysis of decay pions and decay vertex
We are working on Opeartor #3 and #4 of first page. For diff. delatM= 0.3, 0.5, 1 GeV and diff. chiM =100, 300 and 500 GeV
- pt(pi+), pt(pi-), pt(pi+pi-), pt(pi+)/pt(pi-) - opening angle of pi+ and pi- - decay vertex R=sqrt(x2+y2), z, 2Dplot(R vs z) - pt(chi+chi*) at IP (interaction point) - pt(chichi)
924/06/2013
(1) pt(pi+) Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1024/06/2013
(1)pt(pi-) Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1124/06/2013
(1) pt(pi+pi-) Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1224/06/2013
(1) pt(pi+)/pt(pi-) Value Divide Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1324/06/2013
(1) pt(pi+)/pt(pi-) Histograms Divide Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1424/06/2013
(1) opening angle of pi+ and pi-
Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1524/06/2013
Theoretical Decay Lenght
1624/06/2013
(1) decay vertex R=sqrt(x2+y2), z, 2Dplot(R vs z) Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 1
(1) pt(chi+chi*) at IP Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1824/06/2013
(1) pt(chi+chi) Plots from DELTA MASS 0.3, 0.5, 1 GeV and CHI MASS 100, 300, 500 GeV with status code 3
1924/06/2013
Lets Concentrate on Analysis
Plans: (2) test pythia for deltaM=3GeV (and 2Gev).
Chi Mass 100, 300 and 500 GeV chi* -> chi + u + ubar Does Pythia produce hadrons for those u and ubar? If hadronization is done in pythia, check the following.
- multiplicity of hadrons - pt of each hadrons - decay points.
These Results Just From Generated Particle Level with status code 1
2024/06/2013
(2) multiplicity of hadrons
2124/06/2013
(2) pt of each hadrons
Bayram Tali 2220/06/2013
(2) decay points
2324/06/2013