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WG4 Experimental summary

WG4 Experimental summary. Many talks from experiments!. a , f 2 A. Bevan, A. Somov, C.C. Wang, G. Cavoto, F. Palombo b eff , f 1 eff J. Smith, K. Hara, Y. Chao, E. Di Marco, J. Libby g , f 3 E. Barrachini, P. Krokovny, G. Punzi, J. Nardulli Other Mode

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WG4 Experimental summary

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  1. WG4 Experimental summary WG4 experiment summary

  2. Many talks from experiments! • a, f2 • A. Bevan, A. Somov, C.C. Wang, G. Cavoto, F. Palombo • beff, f1eff • J. Smith, K. Hara, Y. Chao, E. Di Marco, J. Libby • g, f3 • E. Barrachini, P. Krokovny, G. Punzi, J. Nardulli • Other Mode • J. Biesiada, K.F. Chen, G. Vasseur, G. Hou WG4 experiment summary

  3. 1000/fb !! As of July 24, 2006 KEKB + PEP-II KEKB for Belle PEP-II for BaBar WG4 experiment summary

  4. WG4 summary of experiments

  5. Isopin triangle WG4 experiment summary

  6. B→pp Adrian Bevan Mixing CPV established by both experiments Direct CPV: 5.5s by Belle, no DCPV by BaBar, need more data! HFAG2006 BaBar has increased p0 efficiency: WG4 experiment summary

  7. B→rr Alexandre Somov [BaBar hep-ex/0612021] submitted to PRL HFAG2006 WG4 experiment summary

  8. Chin-Chi Wang (Belle) Gianluca Cavoto (BaBar) B→rp time-dependent Dalitz plot analysis involves cos(2f2) 27 parameter fit: one of the most complicate analyses! WG4 experiment summary

  9. Chin-Chi Wang (Belle) Gianluca Cavoto (BaBar) B→rp WG4 experiment summary

  10. Chin-Chi Wang (Belle) Gianluca Cavoto (BaBar) B→rp Dalitz+isospin Evidence of Direct CPV! WG4 experiment summary

  11. f2 constraints degrees WG4 experiment summary

  12. B→a1p Fernando Palombo first tCPV measurements additional constraints on a (f2) in near future! WG4 experiment summary

  13. WG4 experiment summary

  14. B→h'K0 and SU(3) Jim Smith WG4 experiment summary

  15. b→s Ks vertexing Yuan Chao WG4 experiment summary

  16. b→s quasi-two-body decays Kohji Hara B0r0KS B0fK0 B0wKS B0f0KS WG4 experiment summary

  17. B0→KKK0 Dalitz tCPV Emmanuele Di Marco WG4 experiment summary

  18. B0→KKK0 Dalitz tCPV Emmanuele Di Marco WG4 experiment summary

  19. b→s tCPV measurements Chua, talk at FPCP06, hep-ph/0605301 WG4 experiment summary

  20. BS→ff @LHCb Jim Libby • Assume a single new physics CP violating phase NP such that: Sensitivity studies with maximumlikelihood fit to toy MC input Large CP asymmetry unambiguous signature of New Physics • 2 fb-1 sensitivity to NPis 0.10 WG4 experiment summary

  21. WG4 experiment summary

  22. B→Kp Elisabetta Barrachini WG4 experiment summary

  23. B→Khh Pavel Krokovny B+ -> K+pi+pi- Belle PRD71 092003 (2005) hep-ex/0412066 B+ -> K+pi+pi- BaBar PRD72 072003 (2005) hep-ex/0507004 B0 -> K+pi-pi0 BaBar hep-ex/0408073 B0 -> K+pi-pi0 Belle PRB 599 148 (2004) hep-ex/0406075 B0 -> Kspi+pi- Belle hep-ex/0509047 WG4 experiment summary

  24. B→hh' @ Tevatron Giovanni Punzi Many results comparable with the B-factories, and interesting results on Bs! WG4 experiment summary

  25. B→hh' @ LHCb Jacopo Nardulli CP sensitivities are then estimated with an extended unbinned maximum likelihood fit to the toy MC sample Fit results corresponding to L=2fb-1 (for L=2fb-1) Extraction of  performed using UTfit bayesian approach and software tools in 3 different scenarios (in this exercise =65o is assumed) (1) Perfect U-spin symmetry d=d’ -  = ’ (2) Weaker assumption: perfect U-spin symmetry just for d, d’ d=d’- no constraint on , ’ (3) Even weaker: given U-spinbreaking for d, d’ d’/d =[0.8, 1.2] no constraint on , ’ • Perfect U-spin : Sensitivity ~ 4o • Scenario (2) & (3) : Sensitivity ~ 7°-10° (secondary fake solution appears) *From current world average But sensitivity depends on the actual values of C and S… WG4 experiment summary

  26. WG4 experiment summary

  27. B0→KSKS and other b→d Jed Biesiada No signal B0→K+K− Observation of B0→K0K0and B+→K0K+ 2.5 First measurement WG4 experiment summary

  28. B0→fK* polarization Kai-Feng Chen BaBar 89M, PRL91, 171802 (2003): Fit fL only, find ~ 0.5 ! Belle86M, PRL91, 201801 (2003): angular fit in transversity basis WG4 experiment summary

  29. B0→rK* and other VV polarization Georges Vasseur WG4 experiment summary

  30. B0→VV and baryon George W.S. Hou WG4 experiment summary

  31. VV polarization WG4 experiment summary

  32. Summary • Much progress in charmless B decays • f2 (a) • isospin (pp, rr) + Dalitz plot (rp) time-dependent analyses • new a1p tCPV analysis • f1eff (beff) • sin(2f1eff) values smaller than sin(2f1) • New analysis in B→KKK0 using Dalitz plot by BaBar • f3 (g) • B→hh, B→Khh • other modes • tCPV in b→d, B→VV • Many fruitful results from both B-factories and Hadron experiments. WG4 experiment summary

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