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Summary of Present Experimental Results

Summary of Present Experimental Results. CKM: f 1 ( & b  s ), f 2 , f 3 ,... Decays with Missing Energy b  d (s) Penguin etc. 13-Sep-2006, Y.Sakai (KEK). Based on ICHEP06 results (highlights). Integrated Luminosity. KEKB + PEP-II. 1000/fb !!. KEKB for Belle.

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Summary of Present Experimental Results

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  1. Summary of Present Experimental Results • CKM: f1(&b s), f2, f3,... • Decays with Missing Energy • b  d (s) Penguin • etc. 13-Sep-2006, Y.Sakai (KEK) Based on ICHEP06 results (highlights) BNM2006

  2. Integrated Luminosity KEKB + PEP-II 1000/fb !! KEKB for Belle Integrated Luminosity (fb-1) reached on July 13, 2006 PEP-II for BaBar ~ 1 Billion BB pairs BNM2006

  3. 535M BB J/ b b KS d d d d c s _ 347M BB X c s s s sin2f1&bgs Penguin tCPV f KS Belle : updated ~all modes with BaBar: updated ~all modes with Improved analyses, more sub-decay modes, .. BNM2006

  4. 535M BB _ 347M BB New ! sin2f1: b g ccs _ _ (cc)K(*)0 BJ/yKs _ B0 tag B0 tag BJ/yKL Preliminary [hep-ex/0607107] [hep-ex/0608039] BNM2006

  5. sin2f1: 2006 BaBar + Belle 0.674  0.026 < 4 % error : Precise measurement ! Av. C = -A = 0.012  0.022 Firm Reference Point for NP search BNM2006

  6. New ! New ! cos2f1: Solve ambiguity Preliminary [hep-ex/0608016] B0gD*+D*-Ks Time-dependent Dalitz analysis (T.Browder, A. Datta et al. 2000)  cos2b > 0 (94%CL, model-dependent) B0gDh0 (h0 = p0 etc.) Time-dependent Dalitz analysis  cos2b > 0 Belle: 98.3%CL BaBar 87% CL [PRL 97,081801(06)] [hep-ex/0607105] BNM2006

  7. 535M BB _ 347M BB New ! “Golden” mode:h’K0 1st observation b  s mode tCPV Preliminary h’K0 h’Ks h’KL unbinned fit SM 5.6s 4.9s “sin2f1” = +0.64  0.10  0.04 A = +0.01  0.07  0.05 “sin2f1” = +0.55  0.11  0.02 A = +0.15  0.07  0.03 [hep-ex/0608039] [hep-ex/0607100] BNM2006

  8. Obtain CP parameters for 2-body and 3-body modes simultaneously by time-dependent Dalitz fit _ 347M BB New ! “Golden” mode:fK0 B0gK+K-K0 Dalitz tCPV K+K-KSgp+p- K+K-KSgp0p0 K+K-KL 151665 K+K-K0signal [hep-ex/0607112] MK+K- BNM2006

  9. _ 347M BB New ! 535M BB fK0: tCPV in B0gK+K-K0 b measurement (not sin2b) [hep-ex/0607112] Rejected (within SM) 4.6s +0.50  0.21  0.05 fK0: sin2beff = +0.12 ± 0.31(stat) ± 0.10 (syst) BNM2006

  10. Smaller than bgccs in all of 9 modes 2006: f1 with bgs Penguins Theory : tends to positive shifts Naïve average of all b g s modes sin2beff = 0.52 ± 0.05 2.6 s deviation BNM2006 Preliminary

  11. 535M BB New ! f2 Belle 2006: B0→p+p− decay (tCPV) 1464±65 signal events p+p− yields first error: stat., second: syst. Large Direct CP violation (5.5s) Large mixing-induced CPV (5.6s) Preliminary p+p− asymmetry background subtracted confidence level contour [hep-ex/0608035] BNM2006

  12. _ 347M BB New ! BaBar 2006: tCPV in B0gp+p- Preliminary Evidence for CP violation (3.6s) Direct CPV not yet observed confidence level contour [hep-ex/0607106] BNM2006

  13. History of B0→p+p− decay (C = -A) 2.3s diff. btw. Belle and BaBar BNM2006

  14. inputs B(p+p0) = (5.75 0.42) B(p+p-) = (5.20 0.25)  10-6 B(p0p0) = (1.30 0.21) A(p0p0) = +0.35 0.33 S(p+p-) = -0.59  0.09 A(p+p-) = +0.39  0.07 f2 constraints from B0→p+p− decay No stringent constraint obtained with pp system alone  need rr and rp BNM2006

  15. f2: B0rr CPV Similar to p+p, but more complicated … B  VV: not CP eigenstate in general r+p+p0: wide resonance Two lucky cards ! fL ~ 100%  CP » +1 B(r0r0) << B(r+r), B(r+r0) < 1.1 30  6 26  6 x10-6(HFAG) 2q A+-/ 2 small Penguin effect (q ) A00 A+0 BNM2006

  16. _ 348M BB New ! BaBar2006: tCPV in B gr+r- B(B0gr+r-)=(23.5±2.2±4.1)x10-6 [hep-ex/0607098] Preliminary BNM2006

  17. _ 348M BB New ! BaBar2006: B grr (cont.) • B0gr0r0 branching fraction: indication at 3.0s • B+gr+r0 branching fraction Preliminary [hep-ex/0607097] [hep-ex/0607092] Preliminary BNM2006

  18. f2 constraints from B0→r+r− decay New r0r0 branching fraction Isospin triangle now closed (new r+r0) BNM2006

  19. B0r+p tCPV B0r+p: not CP eigenstate, same diagram as p+p Mixing CPV with 4 amplitudes (complicated) [BaBar PRL 91,201802(’03); Belle PRL94,121801(’05)] B0p+pp0: Dalitz A3p= f+ A+-+ f- A-++ f0 A00 r+p A(r ip j) = Aij=eif2T ij+ P ij s-= m(p-p0)2 P00 = -(P+-+P-+)/2 fi(s+, s-) : form factors (Breit-Wigner) r+p Fit to Dt, Dalitz dist. f2 w/o discrete ambiguity ! r-p+ s+=m(p+p0)2 [Synyder, Quin, PRD48,2139(‘93)] BNM2006

  20. 449M BB _ 347M BB New ! 2006: B g (rp)0 Dalitz analysis 26 parameters fit (r+p-, r-p+, r0p0) [hep-ex/0609003] [hep-ex/0608002] Preliminary 1-CL [2004 (16 parameters ignoring r0p0) ] BNM2006

  21. 449M BB New ! a/f2 = [83 ] +12 -23 f2 from B grp Dalitz analysis + isospin (pentagon) analysis • 26(Dalitz) + 5[Br(rp), Br(r+p0), Br(r0p+), A(r+p0), and A(r0p+)] Preliminary 1-CL (1s) [hep-ex/0609003] f2 (degrees) BNM2006

  22. a/f2 = [93 ] a/f2 = [99 ] +11 - 9 +13 - 8 f2 Summary [Belle rp Dalitz/Isospin not included] BNM2006

  23. f3 Measurements B gDK 1) fCOM= DCP Gronau-Wyler-London [PLB 253,483; 265,172(’91)] _ D0/D0p+p-/ K+K-(CP=+1) , KSp0/h/f/w..(CP= -1) 2) fCOM= DDCSD Atwood-Dunietz-Soni [PRL 91,171801(’03)] _ ex) B+ D0[K-p+] K+ & D0[K-p+] K+ 3) fCOM= D0KSp+p- Bondar, GGSZ [PRD 68,054018(’03)] B gD(*)+p/r- tCPV Dunietz [PLB 427, 179(’98)] RD sin(2f1+f3 ± d) BNM2006

  24. _ 347M BB New ! [hep-ex/0607104] 2f3 B+ rB B- Belle: 53  3  9 (386M) +15 -18 [PRD73,112009(06)] BNM2006

  25. Comparison: Belle/BaBar DK+ D*K+ B- B+ 2f3 rB B- B+ contours do not include Dalitz model errors BNM2006

  26. g/f3 = [71 ] +22 -30 f3 Summary New BaBar DK Daliitz results not included BNM2006

  27. UT sides: Vcb , Vub , Vtd Vcb Moment analysis: pl, Mx with b  sg Kinetic ~ 1S scheme < 2% precision Inclusive: theoretical framework BLNP [PRD72:073006 (05)] DGE [JHEP 0601:097 (06)] BLL [PRD64:113004 (01)] Vub ~7.5% precision Exclusive: new measurements Form factors (LQCD, Sum rule..) Vtd /Vts ~4% precision Tevatron Dms measuremets BNM2006

  28. CKM Global Fit 2006 Summer 2005 Summer BNM2006

  29. _ Decays w/ “Missing E(>2n)” B  SM : B decay constant Lattice QCD BSM : sensitive to New Physics from H BNM2006

  30. 449M BB _ Always > 2 neutrinos appear in B  t n decay n n Y(4S) B- B+ π+ B tn : Exp. Challenge Majority : 1 track +invisible N= 680k eff.= 0.29% purity = 57% Tag-side: Full reconstruction Charged B BNM2006

  31. 449M BB B (B+t+n) = (1.79  ) x10-4 0.56 0.49 0.39 0.46 Observe 17.2 events significance = 3.5σ +4.3 - 5.7 B tn : Signal Extraction hep-ex/0604018 submitted to PRL EECL : extra neutral energy 5 t decay modes Signal + background 1st Evidence of B decay with > 2 n !! Big step for future in hunting NP _ Background Btn Signal BNM2006

  32. _ 334M BB BF(B++) = (0.88 0.11) x10-4 BR< 1.80 10-4 @ 90%CL +0.68 -0.67 New ! B tn :BaBar Semi-lep tag only [hep-ex/0608019] Combined (1.36  0.48)x10-4 • |Vub| = (4.39±0.33)×10-3 (HFAG) fB = 0.200±0.038 GeV fB = 0.216±0.022 GeV (HPQCD) PRL 95, 212001 (2005) BNM2006

  33. Constraints on H mass Use known fB and |Vub |Ratio to the SM BF. excluded rH=1.130.51 excluded 449M BNM2006

  34. DAMA NaI 3s Region CDMS 04 CDMS 05 B  K(*)nn : Motivation _ b s with 2 neutrinos SM: B(BK* ) ~1.3 x 10-5 B (BK ) ~4 x 10-6 (Buchalla, Hiller, Isidori) _ _ PRD 63, 014015 • New Physics in Loop • Light Dark Mater (M~1GeV) No sensitivity in Direct search BNM2006

  35. 535M BB _ 85M BB New ! B0 K*0nn : Result _ [hep-ex/0608047] Similar exp. technique as B t+n Full-rec. tag & K + nothing 460K tags (1.7σ stat. significance) Sideband = 19 MC expectation = 18.73.3 cf: BaBar B(B+K+ ) < 5.2 x 10-5 _ [PRL 94,101801(05)] Hope to see Signal in (near?) Future BNM2006

  36. 386M BB _ 347M BB B++ B00 New ! b d Penguin : b dg [PRL96,221601(06)] LP05 5.5s 37.2 signals Signals Established ! [hep-ex/0607099] MES(GeV/c2) Vtd/Vts New Physics ! BNM2006

  37. W 449M BB Vtb d t _ 350M BB g K0 s s K0/+ d,u d,u b Vts/d  New ! b d Penguin : B KK 2004/5 Observation ! Evidence 5.3s +9.6 -8.3 37 5.3s 6.0s +6.5 -5.4 23 7.3s MES(GeV/c2) [hep-ex/0608036] [hep-ex/0608049] BNM2006

  38. _ 347M BB New ! b d Penguin : B KSKS tCPV [hep-ex/0608036] BNM2006

  39. New ! b d Penguin : B l+l- Prediction: few 10-8 B+ +l +l – and B0 0l + l - l=e or  (and e - ) B < 7.9 x 10 -8 at 90% CL for B+ ( twice B0) E(GeV) E(GeV) MES(GeV/c2) MES(GeV/c2) Rather clean  Promising in future [209/fb] [hep-ex/0607048] BNM2006

  40. 449M BB _ 232M BB New ! b s Penguin : Radiative New approach for NP Signals: well established (BF~SM) B KSp0g tCPV M(Ks p 0) < 1.8 GeV Yield = 176+/- 18 Preliminary (-C) [hep-ex/0608017] BNM2006

  41. y’ J/y 386M BB K* b s Penguin : EW AFB(K*l+l-) of l+l- B positive AFB [PRL 96, 251801(06)] First Atempt  Important step for future ! BNM2006

  42. Summary Belle + BaBar : > 1000 fb-1 data ! • sin2f1:<4% precision;Dsin2f1(bs)<0 ? “2.6s” • f2, f3: 10~30o, |Vub| ~7.5% (new measurements) • First Evidence of B decay with >2 n • Milestone for Future NP search with t • b d Penguin: establishedexplore NP effect • b d EW Penguin: new approaches for NP • B hh Puzzles being weakened ... • t LFV decays: reaching NP era • : (lot more… not shown here) _ More data, New ideas for New excitements ! BNM2006

  43. New ! B hh ~All BF & ACP: updated at ICHEP06 [227M] [449M] [535/449M] BF: FSR effects are taken into account (PHOTOS,QED) BNM2006

  44. Rc Rn Rn&Rc Puzzle [Buras et al., Eur.Phys.J.C45:701(06) HFAG Puzzle ~ gone Rn= (K+-) /2(K00) =0.99  0.07 Rc= 2(K+0) /(K0+) = 1.11  0.07 BNM2006

  45. 535M BB K+p- K+p0 ACP : K+p- & K+p0 B+K+π0 B0K+π- A(K+p-) ¹A(K+p0) ~4.6s Sum rule [Gronau, Rosner 2005] A(K+p0)+A(K0p0) = A(K+p-) + A(K0p+) ACP BNM2006

  46. Summary ofLFV t decays LK- LK+ BNM2006

  47. BNM2006

  48. 535M BB New ! “Golden” mode:fK0 fK0 fgK+K- fgKSKL 30721 fKS signal New ! 11417 fKLsignal unbinned fit SM (bkg subtracted) “sin2f1” = +0.50  0.21  0.05 A = +0.07  0.15  0.06 BNM2006

  49. A- + Belle BaBar A+ - B0r+p Direct CPV (from Dalitz tCPV analysis) BNM2006

  50. Comparison: Belle/BaBar DK+ D*K+ D*K+ contours do not include Dalitz model errors BNM2006

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