(20130208 kyushu)mssm at-lhc_in_presence_of_126_gev_higgs

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(20130208 kyushu)mssm at-lhc_in_presence_of_126_gev_higgs

  1. 1. SUSY at the LHCin presence of 126GeV HiggsSho IWAMOTO8th Feb. 2013Seminar at Kyushu UniversityReferences)Endo, Hamaguchi, SI, Yokozaki: [1108.3071][1112.5653][1202.2751],Endo, Hamaguchi, Ishikawa, SI, Yokozaki: [1212.3935]The University of Tokyo, JAPAN (4 Kavli IPMU )
  2. 2. 20122/56
  3. 3. LHC!!3/56
  4. 4. LHC is GREAT!ATLAS Recorded:2012: 21.7 fb-1 @8TeV2011: 5.25 fb-1 @7TeVCMS Recorded:2012: 21.8 fb-1 @8TeV2011: 5.55 fb-1 @7TeV5,000,000,000,000,000 5 1015=5000 ) pp collision in total!(peak: 3.7nb-1/s ~ 3.7 109 coll./s)From ATLAS/CMS web4/56
  5. 5. Higgs bosonwasDiscovered!5/56
  6. 6. Higgs bosonwasDiscovered!6/56
  7. 7. but7/56
  8. 8. SUSYNotFound.8/56
  9. 9. Where’sSUSY?9/56
  10. 10. LHCshut down.10/56
  11. 11. 11/56
  12. 12. LHC future plan201520162017201820192020202120222023202413TeV run, 100~200fb-1?13-14TeV run, 500fb-1?Long shut down (LS2)HL-LHC Installation? (proposal)(finally 3000fb-1 @ 14TeV?)12/56
  13. 13. 1. SUSY 126GeV Higgs• SUSY• SUSY Higgs, Naturalness, muon2. MSSM + vectorlike model (V-MSSM)•• LHC3. Summary?13/56
  14. 14. SUSY (126 GeV Higgs14/56
  15. 15. The Standard Model and The MSSM muonSupersymmetry (SUSY)15/56
  16. 16. 16/56
  17. 17. Boson Fermion17/56
  18. 18. The Standard Model and The MSSM muonMSSM (Minimal SUSY Standard Model) muonSupersymmetry (SUSY)18/56
  19. 19. Muon g-2 Problem anomalyHagiwara, Liao, Martin, Nomura, Teubner [1105.3149]Can be explained with SUSYMoroi [ph/9512396]Cho, Hagiwara, Matsumoto, Nomura [1104.1769] 19/56
  20. 20. The Standard Model and The MSSM muonMSSM (Minimal SUSY Standard Model) muonSupersymmetry (SUSY)20/56
  21. 21. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon21/56
  22. 22. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon Little hierarchy22/56
  23. 23. Higgs mass in the MSSMtree one-loop level (top-stop)(stop mixing parameter)parameter αOkada, Yamaguchi, Yanagida, 1991Ellis, Ridolfi, Zwirner, 1991Haber, Hempfling, 199123/56
  24. 24. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon Little hierarchy24/56
  25. 25. Little Hierarchy ProblemHiggs:cancellationstopfine-tune……25/56
  26. 26. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon Little hierarchy26/56
  27. 27. ATLAS SUSY searches Hard jets + Missing energy[ATLAS-CONF-2012-109]27/56
  28. 28. ATLAS Direct Stop searchesLSP R-parityFrom ATLAS SUSY public web page28/56
  29. 29. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon Little hierarchy29/56
  30. 30. V-MSSM / V-GMSB30/56
  31. 31. Vector-likematter31/56
  32. 32. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muonSUSYGMSB CMSSM(mSUGRA)GUT →Endo, Hamaguchi, SI, Nakayama, Yokozaki [1112.6412]Ghilencea, Lee, Park [1203.0569]32/56
  33. 33. MSSM + GMSB (or mSUGRA)MSSM + more complicated SUSYorExtended model + GMSB/mSUGRAV-MSSM33/56
  34. 34. Key Idea34/56
  35. 35. 35/56
  36. 36. Conflict resolved.36/56
  37. 37. V-MSSM V-MSSM = Y’ : IR fixed point behavior to ~1.05 mh Y’’ : reduces mhextra Vector-like matters• No gauge anomaly.• Gauge couplings unification.Martin [0910.2732]Mixing between SM- & vector-like quark Too large → flavor problem. No mixing→ stable colored particle.Okada, Moroi (1992); we digged up again in the context “higgs & g-2”.37/56
  38. 38. RESULTwith GMSBframeworkmSUGRAframework38/56
  39. 39. VMSSM + GMSB explains muon g-2 anomaly under 126GeV Higgs||1.0||+||1calculation failed(technical issue)vacuum instability(IR fixed)Δ(g-2)>0LHC LIMIT!?39/56
  40. 40. LHC constraints on V-MSSM(1) from searches for extra quarks.(2) from searches for SUSY.40/56
  41. 41. LHC constraints on V-MSSM(1) from searches for extra quarks.(2) from searches for SUSY.41/56
  42. 42. Extra particles in the V-MSSM Mass Production Decaydepending on mixingbtw. vec-like/SM quarks.42/56
  43. 43. Extra particles in the V-MSSM Current bounds Under “exclusive decay” assumption Generic analysis (3rd gen. assumption : ) Done by ATLAS3rd gen only(favoredto avoidflavor constr.)43/56
  44. 44. ATLAS vector-like quark search (3rd gen. scenario general analysis)44/56
  45. 45. LHC constraints on V-MSSM(1) from searches for extra quarks.(2) from searches for SUSY.45/56
  46. 46. LHC signature of the V-GMSB scenarioExamined left as future works46/56
  47. 47. LHC signature of the V-GMSB scenario Our analysis Neutralino NLSP Stau NLSP47/56
  48. 48. VMSSM + GMSB explains muon g-2 anomaly under 126GeV Higgs||1.0||+||1(IR fixed)Δ(g-2)>0calculation failed(technical issue)vacuum instabilitycalculation failed(technical issue)vacuum instability48/56
  49. 49. VMSSM + GMSB explains muon g-2 anomaly under 126GeV Higgs||1.0||+||1(IR fixed)Δ(g-2)>0calculation failed(technical issue)vacuum instabilityLHC bound(for long livedNLSP)calculation failed(technical issue)vacuum instability49/56
  50. 50. Summary?50/56
  51. 51. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon Little hierarchy51/56
  52. 52. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muon52/56
  53. 53. The Standard Model and The MSSMMSSM (Minimal SUSY Standard Model) muonin conflict! MSSM + more complicated SUSY Extended model + GMSBConflict Resolved!53/56
  54. 54. VMSSM + GMSB explains muon g-2 anomaly under 126GeV Higgs LHC constraints Extra quark searches SUSY searchescalculation failed(technical issue)vacuum instabilityLHC bound(for long livedNLSP)calculation failed(technical issue)vacuum instability(depending on decay modes)54/56
  55. 55. ?55/56
  56. 56. SUSY SUSY-breaking GMSB squark slepton messenger CMSSM gluino MSSM NMSSM → tanβ → mh → extra? Extra U(1) gauge?→ GUTEndo, Hamaguchi, Iwamoto, Nakayama, Yokozaki [1112.6412] Naturalness NMSSM + Mirage mediation56/56Gunion, Jiang, Kraml [1201.0982]Ellwanger, Hugonie [1203.5048]Asano, Higaki [1204.0508]Kobayashi, Makino, Okumura,Shimomura, Takahashi [1204.3561]
  57. 57. Muon g-2 vs LHCEndo, Hamaguchi, Iwamoto, Yoshinaga [1302.xxxx]57/56
  58. 58. Electroweakino searches focusing on the muon g-258/56• squark/stau decoupled•••
  59. 59. Electroweakino searches focusing on the muon g-259/56• squark/stau decoupled•••

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