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B Physics at a Super B Factory: The Physics Case and Detector David B. MacFarlane DESY Seminar November 9, 2004.

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Presentation on theme: "B Physics at a Super B Factory: The Physics Case and Detector David B. MacFarlane DESY Seminar November 9, 2004."— Presentation transcript:

1 B Physics at a Super B Factory: The Physics Case and Detector David B. MacFarlane DESY Seminar November 9, 2004

2 B Physics at a Super B Factory 2 Initial goals for B Factories Exploring CKM picture or alternative origins for CP violation

3 November 9, 2004 B Physics at a Super B Factory 3 sin2  results from charmonium modes BABAR PUB-04/038 Update for ICHEP04 Limit on direct CPV B elle 2003 2003 B A B AR Belle CONF-0436

4 November 9, 2004 B Physics at a Super B Factory 4 Summary of constraints on  Mirror solutions disfavored BABAR & Belle combined

5 November 9, 2004 B Physics at a Super B Factory 5 Combined GLW and ADS constraint on  BABAR & Belle combined

6 November 9, 2004 B Physics at a Super B Factory 6 B Factories have been very successful!  First precise test for CKM picture of CPV  sin2  = 0.726±0.037, precision measurement (5%)  Progress on other angles   from S  and  Dalitz o 2  from   from (w/ D Daltiz)  And on sides o Paradigm change! Now: looking for New Physics as correction to CKM

7 November 9, 2004 B Physics at a Super B Factory 7 Possible New Physics addition: SUSY  MSSM parameters > 100!  squark/slepton mass matrix o Sensitive to SUSY breaking mechanism. o New sources of flavor mixing [masses + mixing angles + phases] Off-diagonal terms Flavor Physics at luminosity frontier Diagonal terms: LHC/ILC at energy frontier b and  are both 3rd generation: probe both 3  2, 3  1 transitions

8 November 9, 2004 B Physics at a Super B Factory 8 Potential New Physics contributions “Internal Penguin” SUSY contribution with new phases New physics in loops?

9 November 9, 2004 B Physics at a Super B Factory 9 Averages for sin2  and s-penguin modes 3.6 s from s-penguin to sin2 b (cc) No sign of Direct CP in averages

10 November 9, 2004 B Physics at a Super B Factory 10 PEP-II integrated luminosity (as of July 4, 2004) ~245 million BB pairs PEP-II Records Peak luminosity0.923x10 34 cm -2 s -1 Best shift246.3 pb -1 Best day710.5 pb -1 Best 7 days4.464 fb -1 Best week4.464 fb -1 Best month16.72 fb -1 Best 30 days17.04 fb -1 BABAR logged246.4 fb -1 (as of July 31, 2004) 3x design

11 November 9, 2004 B Physics at a Super B Factory 11 Projected performance of PEP-II Luminosity (x10 34 )0.92.4Units e+e+ 3.1 GeV e-e- 9.0 GeV I+I+ 2.454.5A I-I- 1.552.2A  (y*)118mm  (x*)30 cm Bunch length107.5mm # bunches15881700 Crossing angle00mrad Tune shifts (x/y)4.5/78/8x100 rf frequency476 MHz Site power40 MW Jul 04Jul 07 For 05 & 06 shutdowns: Additional LER and HER rf stations, vacuum chamber upgrades, stronger B1 separation field,… LER photon stop limit

12 November 9, 2004 B Physics at a Super B Factory 12 PEP II luminosity projections 2006 0.5 ab -1 1.5 ab -1 2009

13 November 9, 2004 B Physics at a Super B Factory 13 KEKB luminosity projections 44 fb -1 /month 24 fb -1 /month 18 fb -1 /month Crab cavity beam test Integrated 1 ab -1

14 November 9, 2004 B Physics at a Super B Factory 14 Projections for penguin modes K*K* 5  discovery region if non-SM physics is 30% effect 2004=240 fb -1 2009=1.5 ab -1 Similar projections for Belle as well Projections are statistical errors only; but systematic errors at few percent level Luminosity expectations : 20092004 f 0 K S K S  0  K S  ’K S KKK S

15 November 9, 2004 B Physics at a Super B Factory 15 Opportunities for Super B Factory  Current program of PEP-II/BABAR and KEKB/Belle could attain ~1-2 ab -1 by end of the decade o Data samples will be about 6x larger than now and 100-200x times larger than CLEO oWith such a large increase in sensitivity to rare decays, expect that there is a significant discovery potential oRich program of flavor physics/CP violation to be pursued  Even larger samples may offer opportunity to search for new physics in CP violation and rare decays o High-luminosity asymmetric e + e - colliders with luminosities 10 35 -10 36 cm -2 s -1 and up to 10 ab -1 /year – “Super B Factory” oEmphasis on discovery potential and complementarity in an era when LHC is operating, along with LHCb and BTeV (?) oComplementary flavor physics if LHC discovers SUSY, etc; discovery window if no new physics seen?

16 November 9, 2004 B Physics at a Super B Factory 16 Interaction region Crab crossing  = 30 mrad  y * = 3 mm New QCS Super-KEKB upgrades New beam pipe Damping ring More rf power LOI (Jan 04) for SuperKEKB [http://belle.kek.jp/superb/]http://belle.kek.jp/superb/ Ante-chamber & solenoid coils for reduction of electron cloud Linac upgrade

17 November 9, 2004 B Physics at a Super B Factory 17 Super KEKB luminosity projection Integrated 10 ab -1 450 fb -1 /month 52 fb -1 /month 44 fb -1 /month 24 fb -1 /month Crab cavity beam test 14 month shutdown L peak (cm -2 s -1 ) 1.4x10 34 3x10 34 2.5x10 35 Now

18 November 9, 2004 B Physics at a Super B Factory 18 BABAR Roadmap Study: Jan – July 04  Defining physics case for Super B Factory o Emphasis on sensitivity to new physics in CP violation & rare decays o Emphasis on need & capability for precision SM measurements  Requirements of viable project plans o Estimates for duration of approval and funding process o Collider options and upgrade capabilities o Detector capabilities & requirements in light of projected backgrounds o Integrated scenarios for collider and detector construction, with implications for time to first data  Projections of physics reach in light of competition & other opportunities o Projections of samples and sensitivities; analysis of physics reach

19 November 9, 2004 B Physics at a Super B Factory 19 SLAC options for High-Luminosity B Factory Luminosity (x10 34 )0.92.4152570Units e+e+ 3.1 3.58.0GeV e-e- 9.0 8.03.5GeV I+I+ 2.454.58.711.06.8A I-I- 1.552.23.04.815.5A  (y*)1183.63.01.5mm  (x*)30 2515cm Bunch length107.543.41.7mm # bunches15881700 34506900 Crossing angle000  11  15mrad Tune shifts (x/y)4.5/78/811/11 x100 rf frequency476 952MHz Site power40 7585100MW J.Seeman Jul 04Jul 07 LER vacuum +IR+HER vacuum, 952MHz rf

20 November 9, 2004 B Physics at a Super B Factory 20 SLAC options for High-Luminosity B Factory Luminosity (x10 34 )0.92.4152570Units e+e+ 3.1 3.58.0GeV e-e- 9.0 8.03.5GeV I+I+ 2.454.58.711.06.8A I-I- 1.552.23.04.815.5A  (y*)1183.63.01.5mm  (x*)30 2515cm Bunch length107.543.41.7mm # bunches15881700 34506900 Crossing angle000  11  15mrad Tune shifts (x/y)4.5/78/811/11 x100 rf frequency476 952MHz Site power40 7585100MW J.Seeman Jul 04Jul 07 LER vacuum +IR+HER vacuum, 952MHz rf Chosen Option

21 November 9, 2004 B Physics at a Super B Factory 21 Possible Timeline for Super PEP Program LOI Construct upgrades for L = 5-7x10 35 Super-B Program CDR Installation R&D, Design, Proposals and Approvals P5 Construction 2001 20032010200820062005 Planned PEP-II Program (June 30, 2003)(End 2006) (PEP-II ultimate) Commission 2012 Super B Operation 2011

22 November 9, 2004 B Physics at a Super B Factory 22 Considerations for detector systems  Extrapolation of backgrounds with and without luminosity component; spatial and/or angular distributions if significant;  Performance degradation with occupancy and projected limits; likewise radiation damage and projected limits;  Detector options for 5-10x10 35 machines. What are limits of current technologies? Long extrapolation from current background studies, which include significant luminosity-dependent component Depends critically on design of interaction region, beam separation scheme

23 November 9, 2004 B Physics at a Super B Factory 23 BABAR Detector DIRC  PID) 144 quartz bars 11000 PMs 1.5T solenoid EMC 6580 CsI(Tl) crystals Drift Chamber 40 layers Instrumented Flux Return iron / RPCs or LSTs (muon / neutral hadrons) Silicon Vertex Tracker 5 layers, double sided strips e  (3.1GeV) e  (9GeV)

24 November 9, 2004 B Physics at a Super B Factory 24 Interaction region design PEP-II Head-On IR Layout oSR in bend & quadrupole magnets oCurrent dependent terms due to residual vacuum

25 November 9, 2004 B Physics at a Super B Factory 25 Luminosity-dependent backgrounds oSR in bend & quadrupole magnets oCurrent dependent terms due to residual vacuum oBhabha scattering at IP PEP-II Head-On IR Layout

26 November 9, 2004 B Physics at a Super B Factory 26 IR concept for a Super B-Factory M.Sullivan ±12 mr crossing angle oNo background calculations yet Can luminosity component be reduced?

27 November 9, 2004 B Physics at a Super B Factory 27 SVT backgrounds: top module Assumes striplets increase granularity 4-fold

28 November 9, 2004 B Physics at a Super B Factory 28 Monolithic Active Pixels  Option for very high luminosity is MAPS = Monolithic Active Pixels = sensor and electronics on the same substrate. o R&D on monolithic pixels has started in several places.  Possible approaches: o Integrate electronics on the high resistivity substrate usually employed for sensors Active components are not of the best quality The fabrication process is highly non-standard with large feature size (>1-2mm) o Use the low resistivity substrate of standard CMOS process as sensor Can use standard sub-micron process with state-of-the-art electronics Far from a proven technology: fundamental R&D required

29 November 9, 2004 B Physics at a Super B Factory 29 DCH occupancy based on 2004 studies 4 x cells 100% Lumi term 20% Lumi term

30 November 9, 2004 B Physics at a Super B Factory 30 Options for beyond 2x10 35  Replace wire chamber by all silicon tracking o Leave SVT geometry unchanged; replace DCH with 4-layer silicon tracker with lampshade modules. Remove support tube o Radii of barrel part of SVT modules: 3.3, 4.0, 5.9, 12.2, 14.0 cm o Radii of barrel part of CST modules: 25,35,45,60 cm Current detector 60 cm All silicon tracker

31 November 9, 2004 B Physics at a Super B Factory 31 Momentum resolution Present detector Future?

32 November 9, 2004 B Physics at a Super B Factory 32 Calorimeter background projections Integrated Luminosity (2008) 1 ab -1 (2x10 35 ) 10 ab -1 (10 36 ) 100 ab -1 Backward Barrel 0.880.78X Forward Barrel 0.820.61X Endcap Small rings 0.820.69X Endcap Large rings 0.710.53X Degradation of light output with luminosity Is this a functional EMC? Radiation Damage Projections 2x10 35 7x10 35 10 36 Versus ~8 physics clusters Occupancy Projections EMC lifetime limit: about 20 ab -1

33 November 9, 2004 B Physics at a Super B Factory 33 Radiation-hard calorimeter options  Lutetium (+Yttrium) OxyOrthosilicate [LSO or LYSO] o Fast light output in 40ns; solves occupancy problem. o Smaller radiation length 1.15cm (CsI 1.86cm) and Moliere radius 2.3 cm (CsI 3.8cm) o Believed to be radiation hard to 100MRad! o Currently cost is ~$40/cc; pushes radius towards 700mm  Liquid Xenon o Fast light output again, within ~20ns. o Radiation length is 2.9cm: need all of radial space between 700 and 1350mm for cryostat, liquid Xenon and readout. o Moliere radius 5.7cm: long. sampling to separate overlaps. o Cost of Liquid Xenon is $2.5/cc Both Rad Hard crystal and Liquid Xenon options require EMC inner radius reduction to about 70cm: need to replace DRC bars as well

34 November 9, 2004 B Physics at a Super B Factory 34 Muon/K L upgrades  Forward endcap RPCs will not survive 2x10 35 o Outer layers see large LER background (part of which will be shielded after summer 2004) o Inner layers see large Lumi background at small radii  Plan already in the works to replace forward endcap with LSTs (in avalanche mode)  Barrel LSTs installed in summer 2004 and again summer 2005 should be ok for all scenarios  Not clear if there is interest in replacing backward endcap RPCs due to limited acceptance loss

35 November 9, 2004 B Physics at a Super B Factory 35 Super PEP upgrade plan LER replacement 5.07.0 x 10 35 + HER replacement SVT striplets + 952 MHz rf Silicon outer tracker Rad Hard EMC DRC replacement 2.5 Performance limit Operational goal

36 November 9, 2004 B Physics at a Super B Factory 36 Super PEP upgrade plan LER replacement 5.07.0 x 10 35 + HER replacement SVT striplets + 952 MHz rf Thin pixels Silicon outer tracker Rad Hard EMC DRC replacement 2.5 Operational goal

37 November 9, 2004 B Physics at a Super B Factory 37 Important factors in upgrade direction  Project is “tunable” o Can react to physics developments o Can react to changing geopolitical situation Project anti-commutes with linear collider Will emerge from BABAR and Belle, but could be attractive to wider community in context of other opportunities o As we learn more about machine and detector requirements and design, can fine tune goals and plans within this framework  Project has headroom o Major upgrades to detector and machine, but none contingent upon completing fundamental R&D o Headroom for detector up to 5 x 10 35 ; with thin pixels beyond o Headroom for machine up to 8.5 x 10 35 ; requires additional rf, which can be staged into machine over time

38 November 9, 2004 B Physics at a Super B Factory 38 Super KEKB upgrade plan Vacuum pipe, linac, damping rings, additional rf SVT striplets Wire chamber CsI EMC endcap TOP + RICH 2.5 x 10 35 Operational goal Less ambitious, but simpler with fewer machine and detector upgrades

39 November 9, 2004 B Physics at a Super B Factory 39 Physics capabilities: angle projections Unitarity Triangle Angles [degrees] e + e - [ab -1 ] Hadronic b [1yr] Measurement31050LHCb  (  ) (S   B   BR’s  isospin) 6.73.92.1--  (  ) (penguin, isospin, stat+syst) 2.91.50.72  (J/  K S ) (all modes) 0.30.170.090.570.49  (B  D (*) K) (ADS) 2-3~10<13  (all methods)1.2-2 1.6, 1.31, 0.62.5 -5 BTeV  (  ) (Isospin, Dalitz) (syst  3  ) 3, 2.34 Theory:  ~ 5%,  ~ 1%,  ~ 0.1%

40 November 9, 2004 B Physics at a Super B Factory 40 T.Iijima @FPCP Unitarity Triangle from Super-B 5 ab -1 50 ab -1 V ub &  sin2  &  m d V ub &  sin2  &  m d

41 November 9, 2004 B Physics at a Super B Factory 41 CP Violation in b  s penguins Rare Decays, New Physics, CPV [%] e + e - [ab -1 ] Hadronic b [1yr] Goal SM: <5 S(B 0   K S +  K L ) SM: <5 S(B  K s  0 ) SM: <58.254 S(B  K s  0  ) SM: <211.464 A CP (b  s  ) SM: <0.52.410.5 A CP (B  K*  ) SM: <0.50.590.320.14-- CPV in mixing (|q/p|) <0.6-- S(B   'K s ) SM: <55.731 Measurement31050LHCb 8.73.916 (?) BTeV S(B 0   K S ) 167 (?)

42 November 9, 2004 B Physics at a Super B Factory 42 Projections for Super B Factory f 0 K S K S  0  K S  ’K S KKK S K*K* 5  discovery region if non-SM physics is 15% effect Super B Factory 5-7x10 35 cm -2 s -1 Projections are statistical errors only; but systematic errors at few percent level Luminosity expectations : 20122004 Scale change!

43 November 9, 2004 B Physics at a Super B Factory 43 A CP (B  K S ) vs SUSY models 5 ab -1 50 ab -1 Current A CP mix mSUGRA tan  = 30 U(2) tan  = 30 SU(5)+ R tan  = 30 nondegenerate SU(5)+ R tan  = 30 degenerate

44 November 9, 2004 B Physics at a Super B Factory 44 A CP (B  X S  ) vs SUSY models A CP mix 5 ab -1 50 ab -1 Direct CPV Mixing CPV mSUGRA tan  = 30 U(2) tan  = 30 SU(5)+ R tan  = 30 nondegenerate SU(5)+ R tan  = 30 degenerate mSUGRA tan  = 30 U(2) tan  = 30 SU(5)+ R tan  = 30 nondegenerate SU(5)+ R tan  = 30 degenerate

45 November 9, 2004 B Physics at a Super B Factory 45 Pattern of deviation from SM prediction B d unitarity  msms B  K S B  M S  indirect CP b  s  direct CP mSUGRA -----+ SU(5) SUSY GUT + R (degenerate) -++-+- SU(5) SUSY GUT + R (nondegenerate) --+++ - U(2) flavor symmtry +++++ Unitarity TriangleRare Decays ++ Large; + Sizable, - Small Y.Okada

46 November 9, 2004 B Physics at a Super B Factory 46 CP Violation in b  s penguins Rare Decays, New Physics, CPV [%] e + e - [ab -1 ] Hadronic b [1yr] Goal SM: <0.25 S(B 0   K S +  K L ) SM: <0.25 S(B  K s  0 ) SM: <0.28.254 S(B  K s  0  ) SM: <0.111.464 A CP (b  s  ) SM: <0.52.410.5 A CP (B  K*  ) SM: <0.50.590.320.14-- CPV in mixing (|q/p|) <0.6-- S(B   'K s ) SM: <0.35.731 Measurement31050LHCb 8.73.916 (?) BTeV S(B 0   K S ) 167 (?) Discovery potential at Super B for non-SM physics

47 November 9, 2004 B Physics at a Super B Factory 47 More Rare decays precision Rare Decays – New Physicse + e - [ab -1 ] Hadronic b [1 yr] Goal  (b  d  ) /  (b  s  ) --  (B d  ) --1-2 evts  (B d   ) ----  (    ) <10 -8 -- SM:8x10 -3 SM: ~5% 1 excl: 4x10 -6 Measurement31050LHCb 5.6%2.5%  (B  s ) (K -,0,K* -,0 ) ~3  --  (B  invisible) <2x10 -6 <1x10 -6 <4x10 -7 -- - BTeV BD(*))BD(*)) 10.2%-

48 November 9, 2004 B Physics at a Super B Factory 48 Lepton Flavor Violation LFV in neutrino sector already seen (at maximal mixing) LFV in charged leptons?  SM “zero”: good place to look for NP  Tau lepton is heaviest & 3 rd generation oRate enhancement oProbes 3  2(  ) & 3  1(e) transition  SUSY GUT: correlation to b  s transition

49 November 9, 2004 B Physics at a Super B Factory 49 Tau LFV search Searches reach BF sensitivity ~10 -8 with 10 ab -1 CLEO Current 10 ab -1 Improved analysis? T.Iijima @FPCP

50 November 9, 2004 B Physics at a Super B Factory 50 More Rare decays precision Rare Decays – New Physicse + e - [ab -1 ] Hadronic b [1 yr] Goal  (b  d  ) /  (b  s  ) --  (B d  ) --1-2 evts  (B d   ) ----  (    ) <10 -8 -- SM:8x10 -3 SM: ~5% 1 excl: 4x10 -6 Measurement31050LHCb 5.6%2.5%  (B  s ) (K -,0,K* -,0 ) ~3  --  (B  invisible) <2x10 -6 <1x10 -6 <4x10 -7 -- - BTeV BD(*))BD(*)) 10.2%- Discovery potential at Super B for non-SM physics

51 November 9, 2004 B Physics at a Super B Factory 51 b  sl + l - precision New Physics – Kl + l -, sl + l - [%] e + e - [ab -1 ] Hadronic b [1 yr] Goal  (B  K     ) /  (B  Ke + e - ) SM: 1~8~4~2-- A CP (B  K* + - ): high mass SM: <5 ~12~6~3 ~4 A FB (B  s + - ): ŝ 0 27156.7 A CP (B  K* + - ): all SM: <5 ~6~3~1.5 ~2 A FB (B  K* + - ): s 0 A FB (B  K* + - ): A CP SM: ±5 ~20~99~12 Measurement31050LHCb A FB (B  s + - ): C 9, C 10 36-5520-309-13 BTeV

52 November 9, 2004 B Physics at a Super B Factory 52 b  sl + l - precision New Physics – Kl + l -, sl + l - [%] e + e - [ab -1 ] Hadronic b [1 yr] Goal  (B  K     ) /  (B  Ke + e - ) SM: 1~8~4~2-- A CP (B  K* + - ): high mass SM: <5 ~12~6~3 ~4 A FB (B  s + - ): ŝ 0 27156.7 A CP (B  K* + - ): all SM: <5 ~6~3~1.5 ~2 A FB (B  K* + - ): s 0 A FB (B  K* + - ): A CP SM: ±5 ~20~99~12 Measurement31050LHCb A FB (B  s + - ): C 9, C 10 36-5520-309-13 BTeV Discovery potential at Super B for non-SM physics

53 November 9, 2004 B Physics at a Super B Factory 53 Conclusions  Strong physics case for Super B Factory o Program rests on ability to explore of new physics through flavor couplings and phases Complementary to LHC collider experiments Complementary to hadron b experiments; could even be viewed as natural successor o Precision Standard Model physics a second fundamental pillar of program o Builds on proven track record of high-luminosity storage rings and general purpose e + e - detectors o Builds on our present knowledge of CP violation and rare B decays; expect that case will only strengthen as we explore ever increasing data samples over the next few years Feasible & complementary to LHC/ILC for exploring New Physics

54 November 9, 2004 B Physics at a Super B Factory 54 Conclusions  Arguments will evolve with time and data o Perhaps our data is already hinting at new physics, which will motivate further precision studies of flavor physics o Perhaps LHC will directly see new physics, with new couplings and phases that need to be explored at a Super B Factory  Next Steps o Working towards merging Super B efforts with Belle and engaging wider community in exploring physics capabilities o Super KEKB seeking approval and funding in Japan o Super PEP moving to develop a conceptual and technical design for a very high luminosity facility Joint Super B Workshop in Hawaii in spring 2005 Aim is to get a Super B Factory operational early in the next decade

55 November 9, 2004 B Physics at a Super B Factory 55 References oEOI and LOI (KEK-Report 2004-04, Jan 04) for SuperKEKB [http://belle.kek.jp/superb/]http://belle.kek.jp/superb/ o“Physics at Super B Factory”, hep- ex/0406071 oSuper B Workshop in Hawaii (Jan 04) [http://www.phys.hawaii.edu/~superb04/]http://www.phys.hawaii.edu/~superb04/ oBABAR Roadmap Report (Jul 04) oSLAC 10 36 Workshop (available shortly) oT.Iijima’s talk on Super B Factories at FPCP05

56 Backup Slides

57 November 9, 2004 B Physics at a Super B Factory 57 Projecting Physics Reach  Working assumptions for projections o LHCb: Start in Jan 2008 with 50% of design for 2 years o BTEV: Start in Jan 2010 with 50% of design for 2 years o Rolling start for Super B Factory: Oct 2011 = 2.5x10 35 Oct 2012 = 5x10 35 Oct 2013 = 7x10 35 with replacement of inner SVT by thin pixel device

58 November 9, 2004 B Physics at a Super B Factory 58 Projections for  +  - Effective number of tagged events Error on sine amplitude PEP-II, KEKBSuper B-Factory 10/2011 SuperB

59 November 9, 2004 B Physics at a Super B Factory 59 Projections for K *  Effective number of tagged events Error on sine amplitude PEP-II, KEKBSuper B-Factory 10/2011 SuperB

60 November 9, 2004 B Physics at a Super B Factory 60 Tagged Sample Projections for  K 0 Effective number of tagged events SuperB LHCb BTEV

61 November 9, 2004 B Physics at a Super B Factory 61 Error Projections for  K 0 Error on sine amplitude PEP-II, KEKB Super B-Factory 10/2011 SuperB LHCb BTEV

62 November 9, 2004 B Physics at a Super B Factory 62 Projections for  +  -  (S  )L int Effective number of tagged events Error on sine amplitude SuperB LHCb BTEV PEP-II, KEKBSuper B-Factory 10/2011

63 November 9, 2004 B Physics at a Super B Factory 63 Projections for 2-Body Isospin Analysis ()() L int Effective number of tagged events Error on delta [degrees] SuperB

64 November 9, 2004 B Physics at a Super B Factory 64 Trickle injection at the B Factories Best shift, no trickle PEP-II: ~5 Hz continuous KEKB: at ~5-10 min intervals Best shift, LER only trickle Nov 2003 Best shift, double trickle Mar 2004 PEP-II Lumi HER current LER current

65 November 9, 2004 B Physics at a Super B Factory 65 Summary of upgrade scenarios L (nb -1 s -1 )I LER (A)  y * (mm) yy P (MW) Present Performance PEP-II71.8120.05~40Head-on KEKB111.660.05~50 ±11 mrad Upgrade before 2007 (without major funding issues) PEP-II244.560.05~60Head-on KEKB301.660.14~50Crab-crossing Major Upgrade Super PEP-II 700231.50.10~100 High freq rf, new beam pipes & magnets, crossing angle Super KEKB 2509.430.14~90 New beam pipe, more rf, linac, damping ring

66 November 9, 2004 B Physics at a Super B Factory 66 Impact on  E resolution ChannelNowAll Silicon 2237 69 1325 First look at impact on CP violation in     Error on S  and C  are degraded by about 5%  E Resolution

67 November 9, 2004 B Physics at a Super B Factory 67 New Physics mass-scale sensitivity  K S now  K S 30 ab -1 Ciuchini, Franco, Martinelli, Masiero, & Silvestrini

68 November 9, 2004 B Physics at a Super B Factory 68 Search for charged Higgs Band widths from form-factor uncertainty oFully reconstruct tagging B oSignal is large missing mass 5 ab -1 ModeN sig B bkd  B/B 2805507.9% 6203600 T.Iijima @FPCP

69 November 9, 2004 B Physics at a Super B Factory 69 Sensitivity for Charged Higgs LHC 100fb -1  form-factor) ~ 15%  form-factor) ~ 5% T.Iijima @FPCP

70 November 9, 2004 B Physics at a Super B Factory 70 tan  = 30, A 0 = 0,  > 0 Gaugino mass = 200 GeV NowSuper B oSUSY + Seasaw oLarge LFV oNeutral Higgs mediated decay oImportant when m SUSY >> EW scale T.Iijima @FPCP


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