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Experimental summary

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Experimental summary

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  1. Experimental summary Hiro Aihara University of Tokyo 41st Rencotres de Moriond QCD and High Energy Hadronic Interactions La Thuile, Aosta valley, Italy March 18-25, 2006

  2. First of all, I wish to thank • all the speakers who brought great new results to this conference and gave excellent talks (~60 experimental talks). • the organizers who once again made this conference a success. • Tran Thanh Van for his dedication to “Moriond” conference for 40 long years. • Many of us grew up with this institution.

  3. I owe a lot to excellent overviews by A. Golutvin : Heavy Flavors H. Kowalski : Small x and Diffraction F.Yuan : Spin physics C. Salgado : Heavy Ions

  4. The Status of the EW Standard Model

  5. Bs Mixing A=0 No mixing, A=1 Mixing CDF 355pb-1 D0 1000pb-1 ms > 8.6 ps-1 @ 95%C L Sensitivity:13.0 ps-1 @ 95%CL A deviation of ~2.5  from 0 at ms~19 ps-1 Md. Naimuddin

  6. Likelihood analysis Md. Naimuddin • Resolution • K-factor variation by 2% • BR (BsDsX) • ccbar contamination • BR (BsDsDs) Syetematics 17 < Dms < 21 ps-1 @ 90% CL Most probable value of Dms = 19 ps-1 hep-ex/0603029

  7. The Standard Model still in good shape.

  8. CDF should see it soon.

  9. Bs Ds- p+ Distribution of unmixed sample after 1 year (2 fb–1), ~80k events Bs oscillations @ LHCb • One of the first LHCb physics goals • important measurement • aiming for 5σ observation for Dms < 68 ps-1 [in one year] • LHCb could exclude full SM range • Once observed, precise value is obtained:sstat(Dms) ~ 0.01 ps-1 in one year of data taking[D0: sstat(Dms) ~ 1 ps-1 ] Tomáš Laštovička (CERN)

  10. S.Roth D.Whiteson Precision measurements!! top mass + W mass => SM Higgs mass 10

  11. S.Roth

  12. Direct search for the SM Higgs at Tevatron P.Jonsson SM

  13. Direct search for SM Higgs at LHC C.Delaere ATLAS CMS Discovery if 153 <MH<178 GeV

  14. Measuring Higgs properties @ LHC H.Prysiezniak  Mass 0.1%-1% precision over whole mass range  Spin-CP can be ruled out J=1 for mH>230 GeV/c2 - 100 fb -1 and for mH=200 GeV/c2 - 300 fb -1. (J,CP)=(0,-1) for mH200 GeV/c2 - <100fb-1.  Couplings (depending on assumptions) 10%-45% precision on g2Z, g2W, g2, g2t and 10%-50% on H for 110<mH>190 GeV/c2 and 300 fb-1  Self-coupling ΔλHHH=(λ-λSM)/λSM.= -1 excluded with at least 95%CL with 300 fb-1, λ determined to -60% to +200%.

  15. Single top production Tevatron by A.Gresele LHC Study by M.M.Najafabadi

  16. W polarization in top decay Tevatron result by J.Leveque LHC study by F.Hubault WR fraction

  17. P.Catastini

  18. The Status of pQCD

  19. pQCD E.Shabalina

  20. M.Neubauer Diboson production NLO predicts 12.4+-0.8 pb CDF 825 pb-1

  21. Inclusive jet cross section at Tevatron A.Messina Good agreement with NLO pQCD. 21

  22. Direct photon production at Tevatron M.Wobisch NNLO CDF Diphoton 207pb-1 agree with NLO within 7% |y|<0.9 L = 326 pb-1 pTg (GeV)

  23. C.Wissing

  24. M.Shapkin Two-photon physics at LEP 3times larger than QCD prediction.

  25. B.List

  26. The Status of SUSY

  27. Search for non-SM Higgs at Tevatron A.Safonov Neutral MSSM Higgs to 

  28. Direct search for squark and gluino E.Lytken Generic squarks and gluinos strongly produced Cross section @ Tevatron: ~ a few pb Expect cascade decays Signature: Large Missing ET and  2 jets • Results from D0: (310 pb-1) 2, 3, or 4 jets CDF: (250 pb-1) 3 jets • Dominant backgrounds • Z+jets, W+jets, tt, QCD • QCD fitted or cross checked with data • MET cut > [75;175] GeV • Both experiments see no hints of SUSY

  29. Purely leptonic decays of Bs,d mesons R.Brenhard

  30. A.Gupta SUSY search at LHC 30

  31. Beyond-SUSY at Tevatron P.Gris CDF

  32. Heavy Spin-2 Object Search at LHC V.Litvin

  33. The Status of the Structure Functions and Parton Density Functions

  34. PDF from H1/ZEUS N. Raičeviċ _ F2em(x,Q2) ~ Σq eq2(q + q) HERA I • Still large uncertainties on gluon • density and on d density at large x Q2 / GeV2

  35. R.Seidl / Belle

  36. Spin-dependent PDF from HERMES A.Hillenbrand

  37. The Status of Quark model & non-pQCD

  38. R.Chistov/Belle X(3872) JPC=1++ N= 13.64.4, 4.0 X(3940)->DD*

  39. S.Gowdy/BABAR T.Ferguson/CLEO Hybrid (qqbar+g) ? 11 5.1 3.7

  40. Results from BES at Beijing e+e- Collider X.U.Zhuang X(1835) J.Chen Substantial non-DDbar decay of by inclusive measurements. BR~14%-16% 40

  41. T.Lesiak/Belle

  42. S.Gowdy / BaBar

  43. S.W.Lin / Belle Baryonic B decays Large branching fraction!

  44. Pentaquark saga continues. N.Coppola charmed pentaquark

  45. J.Kroseberg

  46. B.Lau / BABAR

  47. P.Patteri / BABAR Two Virtual Photon Annihilation

  48. Purely leptonic D decay by CLEO A.Ryd

  49. A.Denig /KLOE NEW 2.7 deviation

  50. The Status of proton spin