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Highlights of Super-KEB Physics LoI

Highlights of Super-KEB Physics LoI. Toru Iijima Nagoya University April 20, 2005 2 nd Super B Factory Workshop in Hawaii. In This Talk, …. Physics case with 5ab -1  50 ab -1 data at Super-B based on Letter of Intent for KEK Super B Factory ( KEK Report 2004-4 )

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Highlights of Super-KEB Physics LoI

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  1. Highlights of Super-KEB Physics LoI Toru Iijima Nagoya University April 20, 2005 2nd Super B Factory Workshop in Hawaii

  2. In This Talk, … Physics case with 5ab-1 50 ab-1 data at Super-B based on • Letter of Intent for KEK Super B Factory ( KEK Report 2004-4 ) • Physics at Super B Factory ( hep-ex/0406071 ) Contents; • Super-B Motivation • Super-B Physics Reach • Studies of NP Scenario • Summary cf) SLAC-R-709 The Discovery Potential of a Super B Factory Proceedings of the 2003 SLAC Workshops

  3. Success of B Factories First precise test of KM picture for CPV. • sin2f1= +0.726±0.037 is now a precise measurement (~5%). • The other angles are being measured more seriously. • f2 from Srr and rp Dalitz • 2f1+f3 from BD(*)p • f3 from BDK (w/ D Dalitz) + side measurements too. |Vcb|, |Vub|. Dmd A bit old… sorry. ! Paradigm change: look for Alternatives to CKM Corrections by NP ? ~300fb-1(KEKB) ~250fb-1(PEP-II) Far Precise Test to Look for Correction by NP !

  4. New Physics in bs loop ? b⇔s (3rd ⇔ 2nd) should be explored. • Present constraint mainly with transitions between • 3⇔1 generation • 2⇔1 generation • CPV (bsqq) Anomaly? <charmonium> = 0.726±0.037 <bs penguin> = 0.43±0.07 (’05 winter) 0.39  0.11 (Belle) 0.45  0.10 (BABAR) 3.7s deviation !! -hf x Sf Search for New Origin of Flavor Mixing & CP Violation !

  5. Off-diagonal terms Flavor Physics Luminosity frontier Diagonal terms: LHC/ILC Energy frontier cf) Top quark: Mass/width by Tevatron Mixing/phase by B factories B and t are in the 3rd generation (“hub” quark & lepton) probe for both 32, 31 transitions. B Physics in LHC Era • Once NP found in B/LHC, the next question would be What is the NP scenario ? • Orthogonality of B physics to LHC • The squark/slepton mass matrix • Sensitive to SUSY breaking mechanism.

  6. Cont’d B & t decays would be ideal probes for flavor structure of NP. • Super-B key measurements • CPV in bs • FCNC (Kll, Kvv etc.) • LFV (t decays) • Higgs mediation (BDtn etc.) • CKM • + their correlation + Synergy to LHC and other flavor physics exp’s. LHC LC EDM LFV B physics K physics Muon g-2 Charm physics Elucidation of New Physics Scenario

  7. Super Belle Aerogel Cherenkov counter + TOF counter g “TOP” + RICH CsI(Tl) 16X0 g pure CsI (endcap) Si vtx. det. 4 lyr. DSSD SC solenoid 1.5T g 2 pixel/striplet lyrs. + 4 lyr. DSSD Tracking + dE/dx small cell + He/C2H5 • remove inner lyrs. Use fast gas m / KL detection 14/15 lyr. RPC+Fe g tile scintillator New readout and computing systems

  8. Vub Charged Higgs direct CPV f2(a) isospin analysis p+ p- Ks trajectory B vertex IP profile g g Feature of Super-Belle Exp. Belle SuperBelle • Cleaner than hadron machines even after the upgrade • Many off-timing hits, but typical track eff. 91%  89% • B decays with neutrinos BDtn, tn, u ln etc. • B decays with g, p0B Xsg, p0p0 etc. • B vertex reconstruction with Ks only ! BKsp0, Ksp0g etc. B meson beam ! Dtn etc. B e- (8GeV) e+(3.5GeV) full (0.1~0.3%) reconstruction BgDp etc. Υ(4S) p B

  9. CPV (b  s) FCNC w/ n CKM and rich t physics Physics Reach at Super-KEKB SuperKEKB 5ab-1 50ab-1 LHCb 2fb-1 Physics at Super B Factory (hep-ex/0406071)

  10. Measurement of f2 and f3 • f2 measurement • Bpp (isospin analysis) Df2 = 3.9/1.2 deg. (5/50ab-1) • Brp (Dalitz plot analysis) Df2 = 2.9/0.9 deg. (5/50ab-1) • f3 measurement by BDK • Dalitz analysis Df3 = 4/1.2 deg. (5/50ab-1) Model error ? • ADS method Df3 = 16/ 5 deg. (5/50ab-1) Limited by stat. Belle @ present (model)

  11. Measurement of |Vub| • Inclusive bu l n withfully reconstructed tag. Mx, q2, P+ • Good determination of mb by bc l n / bsg is essential. • Exclusive Bp l n withfull recon or D* l n tagging. • High quality data in high q2 • Form factor by unquenched lattice Dp l n @ CLEO-c Extrapolation from present (Mx,q2) measurement. dmb ~ 70 MeV presently ~5% determination is possible.

  12. Vub & f3 sin2f1 & Dmd CKM at Super-B 50 ab-1 CKM is only one part of Super-B physics programs, but still provides model indep. approach to constrain NP. M12=M12SM+M12NP

  13. J/y KS0 fK0 (input S=+0.24) Expectation at 5ab-1 New CPV Phases in bsqq • bs loop is the ideal place to look for new CPV phases. The region for 5s discovery w/ present <bs Penguin> DS theory error fK0: ~0.05 h’K0: ~0.10

  14. <0.37<0.60 <0.3<0.55 <0.5<0.60 A A A h’Ks K+K-Ks fKs -hf x Sf -hf x Sf -hf x Sf Cont’d • 5s confidence region for A and S (5ab-1/50ab-1) Sanda @ CKM2005. The reason why present B is so successful. “Luminosity requirement was set so that we can find CPV even if sin2f1 ~0.10, but it is turned out to be large (~0.72)” Theoretical limitation The region to cover Luminosity goal

  15. C7 Present result +0.63 -0.50 S= -0.79±0.09 (Belle) S= +0.25±0.63±0.14 (BaBar) BXsg CP Asymmetry • Sensitive NP. • Theoretically clean. • Standard Model “~Zero”. • Helicity flip of g suppressed by ~ms/mb Belle Present Belle (stat./syst.) 5ab-1 50ab-1 Acpmix(BK*g, K*Ksp0) 0.56 / 0.09 0.14 0.04 Acpdir(BXsg) 0.051 / 0.038 0.011 0.005

  16. Update from a recent study @ 5ab-1 dC9 ~ 11% dC10 ~14% d q0 ~11% BXsll FB Asymmetry • Good electroweak probe for bs loop. • q2 distribution has different pattern depending on sign(C7). Belle at 250fb-1 q0(the point w/ AFB=0) is sensitive for New Physics SM; q02=(4.2±0.6)GeV2 ※ shown w/ reversed sign definition.

  17. tlg w/ improvement Extrapolation Present CLEO tlp/h/h’ t3l tl Ks tB g/p Lepton Flavor Violation LFV in neutrino sector ⇒LFV in charged leptons ? Search for “SM Zero” tlg t3l, lh B-factory = “Tau-factory” 1010t pairs at 10ab-1 Search region enters into O(10-810-9)

  18. Super-B Present Belle • t3l,lh • Neutral Higgs mediated decay. • Important when MSUSY >> EW scale. Gaugino mass = 200GeV tlg/3l,lh tlg • SUSY + Seasaw • Large LFV Br(tmg)=O(10-7~9)

  19. c b H+/W+ t+ nt Search for Charged Higgs • BDtn (semileptonic decay) Band width from form-factor uncertainty • Full reconstruction tag • Signal  large missing mass • Expected at 5ab-1

  20. Sensitivity for Charged Higgs Constraint from BXsg BDtn D(Form-factor) ~5% D(Form-factor) ~15% Btn (present) LHC 100fb-1 D(form-factor) can be reduced with the present BDmn data.

  21. Elucidation of NP Scenario • T. Goto, Y.Okada, Y.Shimizu,T.Shindou, M.Tanaka, hep-ph/0306093, also in SuperKEKB LoI 1 Hard to distingusih only with mass 2 3 4 Can we distinguish these 4 senarios at Super-KEKB?

  22. 280fb-1 5ab-1 50ab-1 Acp(BfKs) vs SUSY Models U(2) tanb=30 mSUGURA tanb=30 Acpmix SU(5)+nR tanb=30 degenerate SU(5)+nR tanb=30 non-degenerate If confirmed with the central value unchanged. Large impact on LHC physics and cosmology if new CPV in bs: Eg. mSUGRA, Gauge mediated SUSY breaking

  23. Acp(BXsg) vs SUSY models 5ab-1 50ab-1 Mixing CPV Direct CPV U(2) tanb=30 mSUGURA tanb=30 U(2) tanb=30 mSUGURA tanb=30 Acpdir Acpmix SU(5)+nR tanb=30 non-degenerate SU(5)+nR tanb=30 degenerate SU(5)+nR tanb=30 non-degenerate SU(5)+nR tanb=30 degenerate up to 2TeV can be explored.

  24. CPV in bs and SUSY Scenario • Different SUSY breaking scenario can be distinguished in Acpmix(fKs) - Acpmix(K*0g) correlation. Expected precision at 5ab-1 Correlation of other ovservables are also useful. Acpdir(Xsg), AFB(Xsll), Br(tmg), CKM

  25. U(2) FS tanb=30 Mgluino=600GeV/c2 mSUGRA tanb=30 Mgluino=600GeV/c2 SU(5)+vR non-degenerate tanb=30 Mgluino=600GeV/c2 SU(5)+vR non-degenerate tanb=30 Mgluino=600GeV/c2 SU(5)+vR degenerate tanb=30 Mgluino=600GeV/c2 More Tests of SUSY Scenario Acpmix(fKs) Acpdir(Xsg) Br(tmg) Br(Xsg) AFB(Xsll) SUSY GUT relation Acpmix(Xsg) Acpmix(fKs) Correlation to bs Acpdir(Xsg) Br(Xsg) AFB(Xsll)

  26. Theoretical limitation ? Detector feasibility Synergy to LHC (need more studies) Summary Super-B is an unique facility to provide O(1010) B and t in clean environment (550ab-1) The Mission Far Precise Test to Look for Correction by NP. Search for New Origin of Flavor Mixing & CP Violation Elucidation of New Physics Scenario

  27. Cosmology Particle Physics at Higher Energy at TeV (Higgs, SUSY…), GUT 10-44 10-36 1032/1019 Accelerator frontier (Energy/Luminosity) 10-10 Physics at Super-KEKB/Belle New Origin of Flavor Mixing and CPV Elucidation of NP Scenario 10-5 1028/1015 時間（秒） Synergy with HE frontier and other flavor physics exp’s 1015/100 Hadron Physics New states Cosmology Baryogenesis 1012/0.1 温度/Ｅ （Ｋ/ＧｅＶ） Particle Physics Super-B has Significant impact on particle physics in LHC era Links to other fields WMAP Dark Energy (73%) Big Bang ! GUT Dark Matter(23%) Inflation String Baryogenesis New Physics ~1 TeV CP Violation SUSY Standard Model Gauge Theory Higgs Quark/Lepton Neutrino Mass New hadrons? Nucleo- synsesis QGP We should convince community in and around HEP the importance of Super-B. Hadrons Nuclei

  28. Backup Slides

  29. KEKB Upgrade Scenario Lpeak = 1.41034cm-2s-1 Ltot = 330fb-1 (Nov.30, 2004) ~1010 BB/year !! & similar number oft+t- world records ! Major upgrade of KEKB & Belle detector (>1yr shutdown) SuperKEKB Crab cavities Lpeak (cm-2s-1) Lint 5x1034 ~1 ab-1 1.4x1034 330 fb-1 5x1035 ~10 ab-1

  30. Pattern of Deviation from SM Unitarity triangle Rare decay Y.Okada ++: Large, +: sizable, -: small

  31. 5ab-1 50ab-1 UT vs SUSY models Dm(Bs)/Dm(Bd) SU(5)+nR tanb=30 degenerate mSUGRA tanb=30 SU(5)+nR tanb=30 non-degenerate U(2) tanb=30 f3 (degree)

  32. CP Asymmetries in B ->f Ks and b-> sg CP asymmetry in B ->f Ks CP asymmetry in B -> K*g Direct asymmetry in b -> s g

  33. Agashe,Perez,Soni,hep-ph/0406101(PRL); hep-ph/0408134 SUSY vs. Warped Extra Dimensions at LHCb SuperKEKB B(B g Xsl+l-) = (4.51.0) x 10-6 (present WA) also constrains RR and LL mass insertions: i.e. related to S(fKs) “DNA Identification” of New Physics from Flavor Structure

  34. X(3872) Q(1540)pK- Pentaquark search in various methods (1520) pK- • e+e-  many K • Interaction with material Charmed partner pKS D-p Search for New Hadrons Observation of a New Narrow Charmonium State… PRL 91, 262001 (2003) Observation of double cc production in e+e- annihilation… PRL 89, 142001 (2002) hc (2S) cc0 hc DsJ(2317) DsJ(2457) Observation of DsJ(2317) and DsJ(2457) in B decays PRL 89, 142001 (2002) B factory is a gateway to new hadrons.

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