1. Summary of Moriond 2010 Part I. Tevatron 이강영 ( 건국대학교 ) @ 연세대학교 2010. 4. 26.

2. Rencontres de Moriond Since 1966 La Thuile, Aosta valley, Italy Jean Tran Thanh Van

3. Theorists and experimentalists are brought together in a pleasant, relaxed and intimate atmosphere. 75 ordinary talks + 2 summary talks 32 Young Scientist Forum Ordinary talks of 15-30 min. are on invitation. Young scientist forum talks are 7 min and only one question is allowed.

4. Tevatron results LHC prospects (+a little results) Neutrinos And others including theory, flavour, dark matter, etc. Electroweak session

5. Theoretical Issues on Higgs Production at Tevatron

31. Experimental Results on Higgs Physics at Tevatron

40. Dr. Richard St. Denis Glasgow University On behalf of the CDF and D0 Collaborations Moriond 2010 Electroweak, La Thuile, Italy March 6-March 13, 2010 Tevatron Results on SM Higgs Search in the High Mass Region ● Search Foundation and Higgs detection modes ● CDF and D0 detection methods in High Mass ● Results, implications, next steps Outline

41. Higher Physics Reach Jets Bottom WZ Top (t) Higgs  m s =17.77 ± 0.10 ± 0.07 Susy Build on mountain of measurements WW,WZ,ZZ Top(ttbar) Single Top ZZ WZ M t hadronic New M w

42. SM Higgs Production and Decay Trigger: 1 High Pt e or  Focus on Decays: WW → ee, e , e  ’s Separate channels by dileptons (D0), N jets (CDF) Event Selection: High Pt Leptons, Missing E T Vector Boson Fusion Associated production Gluon Fusion (dominates) Low Mass High Mass

43. HWW Production Features High Pt Leptons not back to back Spin 0 Higgs correlates spins of leptons: charged leptons (low  ll ), two neutrinos (High MET) tend to be closely aligned with one another. g g H0H0 W+W+ W-W- e-e- ++ e   ll ww Z/   ll Backgrounds

44. H WW Heavy Flavor WW/W  /top H-Enhanced H WW Met,M ll H t B Z/  WW t H High Pt e,  DrellYan 0jet 1Jet >1Jet tH  R,Ht… Discr. Ana H WW Z/  Hi Lo M ll <2Jet H WW H WW (CDF) WW Z/  t H H W Isolation

45. Same sign Dileptons(CDF/D0), Trileptons(CDF) H0H0 W+W+ l+l+ l W+W+ W+W+ W-W- q q l+l+ l l l-l- H0H0 l+l+ W+W+ W-W- q q l l-l- Z0Z0 Z0Z0 l-l- q q No Rate? Too Low? No! New ● Same Sign dileptons: ● WH: W(jj)W*(ln)W(ln), ll(l) nnn ● ZH: Z(jj)llnn,W(jj)ll(l) nn,… ● Trileptons: ● WH:lllnnn ● ZH:Z(ll)W(qq)W(l) n q q No Channel Left Behind Different Channel Different Systematics

46. SM Exclusion: 162-166 GeV/c 2 ! + T. Aaltonen et al., (CDF and DØ Collaborations), Phys. Rev. Lett. 104, 061802 (2010). T. Aaltonen et al. (CDF Collaboration), Phys. Rev. Lett. 104, 061803 (2010). V. M. Abazov et al. (DØ Collaboration), Phys. Rev. Lett. 104, 061804 (2010). arXiv: 1001.4468 arXiv:1001.448 1 arXiv: 1001.4162. SM Sensitivity: 159-169 GeV/c 2 ! @165: Expected 1.20 Observed 1.29 @165: Expected 1.36 Observed 1.55 CDF 4.8 fb -1

47. Improvements Over Publication ● 4.8→5.3 fb -1 : 5% better ● Optimized e - selection ● Add Trileptons, Low M ll, VH, VBF for 0 Jet ● All together: 15% better! ● Improvements continue (t modes add a few %) New For M H =165 GeV/c 2 ExpectedObserved CDF New1.031.13 CDF Pub1.201.29

48. Next:Extend sensitivity 146-183 136-190

49. Summary “No channel too small” strategy successful: different, backgrounds, systematics, S/B and many channels. Combined Tevatron results exclude the Standard Model Higgs at 95% CL for 162≤ M H ≤ 166 GeV/c 2. Updated CDF results: sensitivity close to 95% CL exclusion for M H =160-165 GeV/c 2. The High mass sensitivity will be expanded: 2xCDF gives 146-183 GeV/c 2 if no improvements, 136-190 GeV/c 2 with improvements. Both experiments have 8 fb -1 delivered! These are remarkable times. Rapid changes in data collected and analysis continue.

63. Tevatron Searches for New Physics

82. Top Quark at the Tevatron

99. Summary Tevatron is still working! Many interesting results have been and will be reported from Tevatron. Can the SM Higgs be found? Well… Please consider (and imagine) exotic new physics to be examined at Tevatron!!!