1

Guy WormserLAL Orsay

Barcelona, May 8 2009

Status of Project

Warwick April 14,2009 Marcello A. Giorgi

Talk outline

• Brief Physics case for SuperB• Present SuperB project Status• The tests in Frascati• The machine design and the recent

Machine Advisory committee report• The detector and detector R&D• SuperB and ILC synergy• Next steps• Conclusion

Flavour physics in the LHC era

• The main objective is to unravel the flavor

structure of the New Physics and the mechanisms causing its specific pattern

• Very good sensitivity to NP thru CP violation asymmetries and rare decays

• Double-prong attack on the quark and lepton sectors

3 3

Is there a no-loose theorem?

• In the assumption of a MFV scenario, is the LHC mass range well covered?

• Is the sensitivity in the leptonic sector meaningful in the LHC era?– The answer is PROBABLY YES if you can

integrate at least 75 ab-1 with a Super B machine

• This requires a luminosity in excess of 10 36 during 5 years

Present knowledge about NP obtained by B factories and Tevatron

A conversation between Flavour Physics, LHC and ILC

• When evidence is found for New Physics at the LHC, attention will turn to understanding the details– Is it SUSY? What type of symmetry breaking?– Is it extra dimensions? Are they warped?

• The ILC will eventually sharpen the picture by, for example, measuring slepton masses

• SuperB/LHCb will be crucial to an understanding of the flavor sector of any type of new physics– Is there charged lepton flavor violation?

– Are there new CP phases ?

– Is there a charged Higgs ?– Is there minimal flavor violation in the (s)quark sector?

7

What is needed to know, once SUSY is found!

Sensitivity extends to high mass scales

9

s

~

New Physics contribution (2-3 transition)

In this case the mainconstraints are bs

ACP(bs)

23Re d

LR

23Im d

LR

ACP magentaB(s) greenB(sll) cyanAll constr. blue

MSSM + generic softSUSY breaking terms

23| |LR

1 10

1

10-1

10-2

(TeV)gluinom

In the red regions the are measured with a

significance >3 away from zero

23| |LR

Arg(23)LR=(44.5± 2.6)o

= (0.026 ± 0.005)

1 TeV

g

b b s~ ~

LRd23

Lepton flavor violation (LFV)

• Lepton flavor violation is unobservably small in the Standard Model

• Neutrino mixing proves that there is neutral LFV

• The next natural question is whether there ischarged LFV?

• Will the neutrino pattern be repeated?

– If so, then LFV will be largest in 32 transitions

• Best bets:

10

11

Physics

Physics goals have been discussed inside the SuperB community in the CDR published in May 2007 and in the proceedings of the Valencia SuperB Workshop in 2008 .It was reviewed in April 2008 by the IRC appointed by the President of INFN.

Warwick April 14,2009 15Marcello A. Giorgi

Signatures breakdown by type

Accelerator physicists

12%

Theorists13%

Experimentalists75%

CDR signatures: some numbers

• 320 Signatures• About 85 institutions• 174 Babar members

– 65 non Babar exper.

Australia, 1

Canada, 7

France, 21

Germany, 11

Israel, 2

Italy, 137

Japan, 4

Norway, 1

ROC, 3

Russia, 18

Slovenia, 5

Spain, 12

Switzerland, 4

UK, 24

USA, 70

Signatures

Signatures breakdown by country

Warwick April 14,2009 16Marcello A. Giorgi

Towards SuperB approval

• May 2008, Physics case positively reviewed by IRC • Sep 2008 Presentation to CERN Council (European Strategy

session)• Nov 2008 : ECFA report• Dec 2008 : SuperB TDR phase approved by INFN. Regional

government votes 5M€/year support for TDR preparation• 15 Feb 2009 Official launch of the TDR Phase in Orsay• March 9 2009 : Interview of the Italian Minister of Research

(after a visit to Frascati and CERN) : Plan to support research to be presented at the next G8 meeting includes a « machina » to be built in Italy to attract international researchers

• March 20, 2009: Large European Laboratory directors meeting : unanimous support for SuperB TDR

• April 24, 2009 : Report from the Machine Advisory Committee

….

B GRANDE INFRASTRUTTURA Sarà costruita una «macchina» (sul modello dell' acceleratore Lhc di Ginevra) in grado di effettuare ricerca d' avanguardia a livello internazionale e di attirare scienziati stranieri

http://archiviostorico.corriere.it/2009/marzo/14/Grande_opera_per_attirare_cervelli_co_9_090314051.shtml

March 14, 2009

• Ultra-low emittance (ILC-DR like)

• Very small at IP• Large crossing angle• “Crab Waist” scheme

• Small collision area

• Lowerispossible

• NO parasitic crossings

• NO synchro-betatron resonances due to crossing angle

P. Raimondi’s idea to focus more the beams at IP and have a “large” crossing angle large Piwinski angle

The machine :A new “superb” idea!

Test started at DANE in November !!!

DANE

(KLOE run)

DANE Upgrade

Ibunch (mA) 13 13

Nbunch 110 110

y* (cm) 1.8 0.85

x* (cm) 160 26

y* (m) 5.4 low curr

3.1

x* (m) 700 260

z (mm) 25 20

Horizontal tune shift

0.04 0.008

Vertical tune shift 0.04 0.055

cross (mrad) (half) 12.5 25

Piwinski 0.45 2.0

L (cm-2s-1) 1.5x1032 >5x1032

DANE (KLOE run)

DANE Upgrade

BEAM PROFILES @IP AND NEW PARAMETERS

3 times more luminosity obtained just with 3 times smaller vertical beam

Crab Waist Works: First Experimental Evidence

Crab Sextupoles on all the time since the first time we tested them

Present Performances

• Peak Luminosity: 4.36e32 (1.52e32) obtained with 1.40 (1.55) Amps e- vs 1.1 (1.25) Amps e+ 105 (110) Bunches

• Peak Hourly rate 1.023 (0.44) pb-1/hour

• Peak Daily rate 15.0 (9.83) pb-1 with long coasting (Long coasting needed for Siddharta, not for Kloe or Finuda)

Red are the Kloe records before the upgrade

Lum

ino

sity

[102

8 cm

-2 s

-1]

y=18mm, Pw_angle=0.6

y=9mm, Pw_angle=1.9

y=25mm, Pw_angle=0.3

LPA alone gives more luminosity

Data averaged on a full day

Sp

ecifi

c L

um

ino

sity

[10

28

cm-2 s

-1]

y=18mm, Pw_angle=0.6

y=9mm, Pw_angle=1.9

y=25mm, Pw_angle=0.3

Same beam sizes and specific luminosityat low current with an without Crab Sextupoles

Beam-Beam Simulation of DAFNE (Ohmi)

•

(Fall 2008)

Key technical advances for Super-B

• Crossing angle IR with large Piwinski angle

• Crab waist scheme (Raimondi et al)

• Very low IR vertical and horizontal beta functions

• Low horizontal and vertical emittances

Beams distribution at IP

Crab sextupoles OFF

Crab sextupoles ON

waist line is orthogonal to the axis of one bunch

waist moves to the axis of other beam

All particles from both beams collide in the minimum y region, with a net luminosity gain

E. Paoloni

With Crab-sextupoles

WithoutCrab-sextupoles

Tor Vergata Site

•

Potential Frascati LNF Location

•

•

From July 2008 Mini-MAC

Super-B Parameter Options

•

All lattices reuse PEP-II hardware componentsTotal length 1800

m

280 m

20 m

Lmag

(m) 0.45 5.4

PEP HER - 194

PEP LER 194 -

SBF HER - 130

SBF LER 224 18

SBF Total 224 148

Needed 30 0

Dipoles

Lmag (m) 0.56 0.73 0.43 0.7 0.4

PEP HER 202 82 - - -

PEP LER - - 353 - -

SBF HER 165 108 - 2 2

SBF LER 88 108 165 2 2

SBF Total

253 216 165 4 4

Needed 51* 134 0 4 4

Quads

Available

Needed

All PEP-II magnets are reused. Dimensions and fields are

properly sized.

Lmag

(m) 0.25 0.5

PEP HER/LER 188 -

SBF Total 372 4

Needed 184 4

Sexts

M. Biagini

-3 -2 -1 0 1 2 3

0

-100

-200

100

200

mm

metersVersion P3 M.Sullivan Jan. 24, 2009

HER QF1

QD0 QD0

QF1

Compensating solenoids

PM LER

Cryostat

LER

SuperB Interaction Region Layout View (Jan 2009)

Sullivan

M. Sullivan

Simulations for SuperB

Strong-Strong

Weak-Strong

Quasi-Strong-Strong

K. Ohmi

(M. Zobov’s talk)

Possible layout with spin rotators near IR (Wienands, Wittmer)•

TDR Topic List

•Collider design•Two rings lattice

•Injection System•Polarized gun •damping rings •spin manipulators •linac•positron converter •beam transfer systems

•Polarization insertion•IR design•beam stay clear•ultra-low emittance tuning•detector solenoid compensation •coupling correction•orbit correction•stability•beam-beam simulations•beam dynamics and instabilities•single beam effects•operation issues•injection scheme

•Vacuum system•Arcs pipe•Straights pipe•IR pipe•e-cloud remediation electrodes•bellows•impedance budget simulations•pumping system

•Diagnostics•Beam position monitors•Luminosity monitor•Current monitors•Synchrotron light monitor•R&D on diagnostics for low emittance

•Feedbacks•Transverse•Longitudinal•Orbit•Luminosity•Electronics & software

•Control system•Architecture•Design•Peripherals

•RF System•RF specifications•RF feedbacks•Low level RF•Synchronization and timing

•Site•Civil construction•Infrastructures & buildings•Power plants•Fluids plants•Radiation safety

•Magnets•Design of missing magnets•Refurbishing existing magnets•Field measurements•QD0 construction•Power supplies•Injection kickers

•Mechanical layout and alignment•Injector•supports

Conclusions for the machine

• The Super-B parameters are being optimized around 1 x 1036.• The team is addressing the Mini-MAC suggestions from the July meeting.• IR present design is a strong basis on which to start adding subtle features.• IR polarization (spin) rotators have now been added to the HER lattice.

Polarization has changed the geometrical layout.• Beam-beam and dynamic aperture calculations have started. The new lattice

layouts show improvement.• Beam loading and RF parameters have taken the next solid step. Looks

acceptable.• Planning for the Technical Design Report has started.• The areas for further concentration:

– Look for issues with the potential new site– Lattice emittance tuning and dynamic aperture– Vibration measurements and active damping for IR– Polarization geometry and tolerances– IR engineering – Next round of beam-beam interaction studies– Beam dynamics studies (ECI for e+ and ions for e-)

Comparison of Super-B to “Old” SuperKEKB

Parameter Super-B Super-

KEKB

Energy GeV 4x7 3.5x8

Luminosity 1036

/cm2/s

1.0 0.4

Beam

Currents

Amps 1.9x1.9 10.0x4.0

y* mm 0.22/0.39

3.0

x* cm 3.5x2.0 20.

Crossing

angle (full)

mrad 48 30

RF power

(AC line)

MW 17 ~85

Tune shifts (x/y) 0.004/0.15

0.24/0.40

Super-KEKB Nano-Beam Collider (April 2009) (Oide)

Super-KEKB options (Ohnishi April 2009)

•

Machine Advisory Committee statement on Viability

• Important progress since last meeting. Examples – Crab waist studies very convincing

• Demonstrated improvement of ~3 from CW– Beam-beam simulation

• Benchmarked at DANE• Increased confidence in weak-strong given validation from

strong-strong– New IR design

• Removes cold bore• BSC increased significantly• Reduced power levels on components• Faster separation (larger crossing angle)

• Mini-MAC recognizes this important progress

1. Viability continued

• Mini-MAC now feels secure in enthusiastically encouraging the SuperB design team to proceed to the TDR phase, with confidence that the design parameters are achievable

Warwick April 14,2009 Marcello A. Giorgi 4428 Nov,2008 Marcello A.Giorgi 44

Detector Layout – Reuse parts of Babar (or Belle)

BASELINE

OPTION

Organization Chart for TDR Phase

AcceleratorR&D, Engineering and Construction

AcceleratorTechnical Board

DetectorR&D, Engineering and Construction

DetectorTechnical Board

Site computing

system, offline

Infrastructure,Facilities, Services

OversightBoard

InternationalBoard of

Representatives

R&D + Preparatory StudiesLinacMagnetsMech. DesignIR/Final FocusVacuumTransfer LinesAlignmentDiagnostics

Polarization

Parameters

OpticsBeam Dynamics

RF/Feedback

Fluid Supplies

Damping RingsControl SystemPower Supplies

Rad. Protection

Tunnel,power,water,

utilities,………

Computing(M.Morandin)

Accelerator Consortium (J.Seeman )

Detector Collaboration(F.Forti B.Ratcliff)

LocalInfrastructure(S.Tomassini)

SVTDCHPIDEMCIFR

Magnet

Offline Computing

Online ComputingElectronicsTriggerDAQRad. MonitorLum. Monitor

MDI

Computing Model

Mini-MAC Mini-DETMini-COMP

SuperB Project Office - TDR Phase

Director (M.Giorgi)

DeputyDirector 1(D.Hitlin)

DeputyDirector 2(D.Leith)

DeputyDirector 3

(G.Wormser)Administrative and scientific staff

Warwick April 14,2009 45Marcello A. Giorgi

Steering Committee

Since 2006 a Steering Committee is in place

M.G. ( INFN Italy-Chair)W.Gradl (Germany)P.Harrison (UK)D.Hitlin (USA)H.Jawahery (USA)D.Leith (USA)E.Levichev(Russia)F. Martinez-Vidal (Spain)P.Raimondi (INFN Italy)M.Roney (Canada)G.Wormser (France)

+ Detector Coordinators +Accelerator Coordinators

This committee is in a restructuring phase and will evolve into the International board of representatives.

Warwick April 14,2009 46Marcello A. Giorgi

Detector R&D

• Main parts of Babar to reuse– Quartz bars of the DIRC– Barrel EMC CsI(Tl) crystal and mechanical structure– Superconducting coil and flux return yoke.

Sys R&D Engineering

SVT Layer 0 thin pixels

Low mass mechanical support

Silicon strip layers

Readout architecture

DCH High speed waveform digitizing CF mechanical structure

Gas speed, cell size

Barrel PID Photon detection for quartz bars Standoff box replacement

Forw PID Time of flight option

Focusing RICH option

Mechanical integration.

Electronics

EMC LYSO characterization

Light detection

Readout electronics

Forward EMC mechanical support

IFR Fiber disposition in scintillator Location of photo-detectors

ETD High speed data link

Radiation hard devices

Trigger strategy

Bhabha rejection

Warwick April 14,2009 47Marcello A. Giorgi

Resources for Detector and Computing

Item Physicists sourcesEngineers sourcesTech sources ComProf sou

Phys Eng Tech ComProfAvail Miss Avail Miss Avail Miss Avail MissSVT 218 236 144 0 162 56 165 71 144 0 0 0DCH 71 50 3 12 48 23 22 28 0 3 0 12Barrel PID 149 45 12 4 85 64 20 25 10 2 0 4Forw PID 165 33 5 4 85 80 21 12 5 0 0 4EMC 162 102 65 0 64 98 26 76 26 39 0 0IFR 95 29 33 0 39 56 29 0 33 0 0 0ETD 84 114 0 0 6 78 10 104 0 0 0 0Comp 164 0 8 161 98 66 0 8 0 29 132

TOTAL (mm) 1108 609 270 181 587 521 293 316 226 44 29 152FTE (2 yrs) 46.2 25.4 11.3 7.5 24.5 21.7 12.2 13.2 9.4 1.8 1.2 6.3

person - months in 2 yearsRequired man power

Warwick April 14,2009 48Marcello A. Giorgi

Half the people are still missing fot the TDR phase : you can help!

ILC and Super B synergies

• Machine– The superB rings and ILC damping rings are

extremely similar: same goal in terms of emittance

– Strong similarity between SuperB Interaction regions and ILC interaction region

– Same electron polarisation scheme

• Detector– Vertex detector R&D quite similar– Electronics, trigger, DAQ,…

The next steps

• Next SuperB general meeting June 16-20 in Perugia– October 1-5 at SLAC– December in Frascati

• June 2009: encouraging statement from Italian governement is expected

• Bilateral MoUs to be signed between INFN and international partners

• Statement from CERN council reagrding SuperB as part of the European Strategy expected in September 2009

• Intermediate document to be transmitted to Italian governement at the end of 2009

• Groundbreaking start hoped in 2010, together with SPARC-X project

• TDR written : end 2010

Conclusions• Flavor physics presents an very exciting opportunity to understand

new physics uncovered at the LHC• LCHb and SuperB factory are very complementary tools. • A superb new idea to build a machine of unprecedented luminosity.

Tests at DAFNE demonstrated the concept!• Machine Advisory Committee endorsed the machine feasability.• There is a real chance that a SuperB project be approved in Europe

provided it is very vigorously pushed by the new Italian government• TDR phase now in full steam, time to join! To be completed by end

2010• Important synergy with ILC key elements• Expected first beams in 2015….

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