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Experimental Summary

Experimental Summary. Doug Glenzinski Fermilab Aspen Winter Physics Series “New Physics at the Electroweak Scale And New Signals at Hadron Colliders” January 2007. Thank you!. Conference Organizers: Henry, Florencia, David, Petar, Neil Great conference program Intimate setting

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Experimental Summary

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  1. Experimental Summary Doug Glenzinski Fermilab Aspen Winter Physics Series “New Physics at the Electroweak Scale And New Signals at Hadron Colliders” January 2007

  2. Thank you! • Conference Organizers: Henry, Florencia, David, Petar, Neil • Great conference program • Intimate setting • Beautiful location • Henry, “One of my favorite summaries was by Cronin” • I thought you were my friends

  3. This talk will be (mostly) backwards.

  4. The Future

  5. The Future: ILC It will be great… if it happens • Could offer the definitive determination of the EWK sector • Beautiful physics (talk by J. Brau)

  6. The Future: LHC It will be great… when it happens • Should offer first look of EWKSB and BSM Physics • Exciting physics (talks by D.Rousseau, T.LeCompte, B.Zhou, J.Conway, S.Dasu, J.Rohlf, C.Hof, T.Skwarnicki)

  7. December 2006 LHCb CMS ATLAS

  8. The Future: Dark Matter and -Physics • Have offered first evidence of BSM • Much progress in past decade

  9. The Future: Dark Matter and -Physics • -mixing well established and its phenomenology largely specified • Inverted mass heirarchy? • Absolute mass scale? • Dirac or Majorana? • It will take some time to reach the experimental sensitivities needed to definitively answer these questions • To what degree do these answers inform the model building we expect to do once EWSB is revealed? • Next generation direct Dark Matter searches will have sensitivity for large part of relevant SuSy space

  10. The Future: Dark Matter and -Physics • T2K (2009), NoA (2011) • sin223 ~ 0.01 • Possibly sensitive to sin213 > 0.01 • Determine whether or not heirarchy is inverted • Double Chooz (2008) Daya Bay (2011) • Unambiguous sensitivity to sin213>0.01 • Majorana or Dirac? • to reach required sensitivities (assuming inverted heirarchy) will take quite some while (>2015) • Even longer if normal heirarchy (talk by M.Wascko)

  11. The (near) Future: MiniBoone • LSND Result impossible to accommodate without invoking additional -families • MiniBoone designed to experimentally verify or exclude this result • Blind analysis • In final stages of review • A positive result would have an immediate effect on model building (talk by J.Monroe)

  12. The Future: Dark Matter Searches • DAMA could soon be ruled-out • Many novel techniques being pursued to get to ~1ton detectors • XENON, XMASS, WARP, COUPP • Few years before these come online at full sensitivities (talk by J.Collar)

  13. The Present It’s the best it’s ever been • Achieving unprecedented sensitivities across hep • Expect significantly improved sensitivities prior to • first LHC physics results (<2010) • Best place to look for new physics - there’s data

  14. The Present • Summarize progress in three main areas • Flavor Physics Constraints • Precision Electroweak Constraints • Higgs and BSM Searches • Concentrate on progress since last Aspen conf • When appropriate, comment on expected improvements over next two years

  15. Flavor Physics Constraints: • Impressive progress on all aspects of CKM matrix • Vtd : ms • Vub •  : tree vs penguin •  : from , , and  decays •  : 3-body charmless B-decays • Progress using Rare Decays • Restrictions on NP contributions to phase and mixing amplitude of Bs system

  16. Flavor Physics Constraints:ms • Constrains Vtd/Vts • Jan-06 had limits ms>16.6 ps-1 and sensitivities of 13 ps-1 • Jun-06 had 3 Sep-06 had 5 • Limited by Lattice calculations (talk by P.Gutierrez)

  17. Direct: sin2b = 0.67±0.03 Indirect: sin2b = 0.76±0.04 Difference:= 0.09±0.05 Flavor Physics Constraints:Vub • Measured with inclusive and exclusive modes • Many 2006 updates to exclusive BR • Vub limited by LQCD uncertainties • Some tension with sin2 determinations • sin2 statistics limited (even b ccs) (talk by P.Dauncey)

  18. -0.1 0.1 0.0 D(sin2b) Flavor Physics Constraints:Trees vs Penguins • Comparison can give evidence of NP • b ccs (tree) • b sss (penguin) • Need theoretical input to correct for penguin pollution • corrections tend to increase sin2 • Statistics can help • Expect x2 data over next two years (talk by P.Dauncey)

  19. Belle (414 fb-1) B-> Flavor Physics Constraints: Rare Decays • SM rare decays proceed through loop diagrams - where NP can contribute • First evidence of B->reported this year • All three important to constrain MSSM • Improvements expected on all 3 from BaBar/Belle (b->s, B->l) and CDF/D0 (B->) (talk by S.Robertson)

  20. Electroweak Constraints: W-Boson Mass • ADLO finalized their Mw • Awaiting final CR uncertainties • CDF presents first RunII determination (200 pb-1) • Single-most precise • New Tev average • Progress Jan-06: Mw = +/- 34 MeV Today: Mw = +/- 25 MeV • Prospects • CDF Mw<25 MeV with data on tape • D0 sensitivity similar LEP: 80376 +/- 33 TeV: 80429 +/- 39 MeV World: 80398 +/- 25 (talk by A.Kotwal)

  21. Electroweak Constraints: Top-Quark Mass • Steady improvement • Inclusion of more data • Improvement to analysis techniques • Have surpassed Run II goal • Limiting systematic (JES) largely eliminated • Via in situ W->jj decays • Progress Jan-05: Mt = +/- 4.3 GeV Jan-06: Mt = +/- 2.9 GeV Today: Mt = +/- 2.1 GeV • Prospects Run II: Mt = +/- 1.0-1.5 GeV TeV: 171.4 +/- 2.1 GeV (talk by R.Wallny)

  22. Electroweak Constraints • Mh = 80 + 36 - 26 GeV • Mh < 153 GeV @ 95% CL Including CDF’s new Mw: (M.Grunweld, private communication)

  23. g q W W* g q Z W h W Higgs Sensitivity: DiBosons • Share multi-lepton signature + s • Want maximal lepton acceptance • WW, WZ, ZZ important Tevatron benchmarks demonstrating higgs sensitivity • These will be backgrounds for higgs search Diboson production Important for mh>150 GeV

  24. Higgs Sensitivity: DiBosons In 1 fb-1 have measured xsec down to a picobarn level. (talk by M.Chertok)

  25. W q q W t b W* W* b q q h b b s-channel single top Important for mh<130 GeV Higgs Sensitivity: Single-Top • Share same Wbb signature • Both small signals on large background • Single top important Tevatron benchmarks demonstrating higgs sensitivity • Eventually a background for higgs search

  26. Higgs Sensitivity: Single-Top CDF better sensitivity, but worse result: (cdf best)=2.7+/-1.4 pb (2.3) (talk by Y.Coadou)

  27. Higgs Sensitivity • differences in CDF/D0 sensitivity dominated by differences • in luminosity used for each contributing analysis (15 total) • challenging but doable - CDF/D0 enthusiastically pursuing (talk by D.Cho)

  28. Higgs Sensitivity Tevatron will have sensitivity to MSSM higgs for all tan>30 and MA<200 GeV/c2

  29. CDF 1 fb-1 Search for New Phenomena • No significant deviations from SM • … but not for lack of trying • Thorough program looking for BSM • Over next two years expect another • factor ~4 in data (x7 for full Run2)

  30. Search for New Phenomena: Limits (cf. talks by M.Titov, J.Conway, D.Cho, M.Kruse, R.Erbacher, P.Gutierez, R.Culbertson, P.Verdier, M.Chertok)

  31. CDF 1 fb-1 Search for New Phenomena • Smattering of ~2.0-2.5 excesses • My favorite: • h--> search • well described by mh=160 • D0 result soon • More data on tape and coming h-> ~2 excess (talk by J.Conway)

  32. c b  u,d,s,e,e 1985 1979 1983 1984 1980 1982 1970 1978 1981 1989 1991 1993 1995 (circa 1974) 1990 1992 1994 t I show up.

  33. Conclusions • We know the Standard Model is incomplete. • But it does an impressive job of describing the data, some pieces to great precision. • Still, we can’t wait to replace it. • I think (hope) the next few years will bring chaos • First crack from B-Factories or Tevatron? • LHC much anticipated, first physics in 2-3 years • MiniBoone, Dark Matter Searches, and Auger could reveal surprises of their own • It will be fantastic fun

  34. Acknowledgements • I’m extremely grateful for help received from: R.Kowalewski, B.Keyser, R.Demika, J.Berryhill, Y.-K.Kim, S.Robertson, M.Wasko, M.Ave, P.Dauncey, Y.Caodou • Apologies for omissions, mis-representations, etc.

  35. Post-Script: Improved Tools • There were many exciting new results presented at this conference and we anticipate many more in the next few years. • None would have been possible without having a thorough understanding of “the basics” • PDF have improved dramatically over last several years thanks to HERA (W.Smith’s talk) • Improved MC descriptions of important processes and backgrounds central to achieving our physics aims (talks by Z.Sullivan, F.Petriello, P.Skands)

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