SUSY with light electroweakino

Transcription

1 SUSY with light electroweakino Sho IWAMOTO A self introduction 17 Dec Joint HEP Tel Aviv University References: * M. Endo, K. Hamaguchi, S. I., and T. Yoshinaga [ ] * S. I., T. T. Yanagida, N. Yokozaki [ ]

2 Introduction: Previous works SUSY LHC ILC astrophys (AMS-02) cosmology (baryogenesis) Tevatron top forward-backward anomaly CMS W searches at LHC 2 /49

3 Introduction: Previous works SUSY LHC ILC astrophys (AMS-02) cosmology (baryogenesis) Tevatron top forward-backward anomaly CMS W searches at LHC Experiments Phenomenology 3 /49

4 O u t l i n e 0. Introduction Why I like SUSY? A nightmare Muon g-2 anomaly 1. Muon g-2 v.s. LHC 2. CP-safe Gravity Mediation 4 /49

5 Introduction: Why I like SUSY? MSSM (with R-parity) Fermion Boson ( unification ) Radiative EWSB [Electroweak symmetry breaking] Dark matter anomaly Hierarchy problem 5 /49

6 Introduction: Why I like SUSY? MSSM (with R-parity) Fermion Boson ( unification ) Radiative EWSB [Electroweak symmetry breaking] Dark matter anomaly Hierarchy problem 6 /49

7 Introduction: A nightmare Δ(m h ) loop : large SUSY far above TeV? We won t see SUSY? tree (stop mixing parameter) 7 /49

8 Introduction: Muon g-2 anomaly, solved by SUSY Muon [anomalous magnetic moment] 3.3σ Hagiwara, Liao, Martin, Nomura, Teubner [ ] Loop contrib. from EWKino with m=o(100) GeV (and large tan β, positive μ). Lopez, Nanopoulos, Wang [ph/ ] Chattopadhyay, Nath [ph/ ] Moroi [ph/ ] 8 /49

9 Introduction: Two clues for SUSY mass spectrum Higgs mass m [TeV] 10 Together with 8TeV LHC 1 anomaly /49

10 Story if EWKino = O(100)GeV, SUSY anomaly O(100)GeV EWKino LHC! 10 /49

11 Story if EWKino = O(100)GeV, SUSY anomaly O(100)GeV EWKino LHC! Which channel? Reach? SUSY Model? 11 /49

12 Story if EWKino = O(100)GeV, SUSY anomaly Which channel? O(100)GeV EWKino Reach? LHC! SUSY Model? 12 /49

13 O u t l i n e 0. Introduction Why I like SUSY? A nightmare Muon g-2 anomaly 1. Muon g-2 v.s. LHC 2. CP-safe Gravity Mediation 13 /49

14 Important channel Production (Wino-like) m [TeV] 10 [fb] (tree-level) [GeV] [GeV] 14 /49

15 Important channel Production (Wino-like) Sensitive decay channels NO Non Z-like leptons! YES Non Z-like leptons! but large SM BKG /49

16 g-2 prediction v.s. LHC reach Endo, Hamaguchi, SI, Yoshinaga [ ] 8TeV, 13.0/fb ATL-CONF LSP: 16 /49

17 g-2 prediction v.s. LHC reach Endo, Hamaguchi, SI, Yoshinaga [ ] 8TeV, 13.0/fb ATL-CONF LSP: 17 /49

18 18 /49

19 g-2 prediction v.s. LHC reach : Higgsino mass Endo, Hamaguchi, SI, Yoshinaga [ ] is irrelevant simply to via can decay via Less/softer 19 /49

20 20 /49

21 SUSY contribution to g-2 : mass basis 21 /49

22 SUSY contribution to g-2 : gauge basis * are loop functions (>0). 22 /49

23 SUSY contribution to g-2 : gauge basis * are loop functions (>0). 23 /49

24 SUSY contribution to g-2 : gauge basis * are loop functions (>0). 24 /49

25 SUSY contribution to g-2 : gauge basis 25 /49

26 SUSY contribution to g-2 : gauge basis 26 /49

27 Story if EWKino = O(100)GeV, SUSY anomaly Which channel? O(100)GeV EWKino Reach? LHC! SUSY Model? 27 /49

28 Story if EWKino = O(100)GeV, SUSY anomaly O(100)GeV EWKino LHC! SUSY Model? 28 /49

29 Story if EWKino = O(100)GeV, SUSY anomaly Which channel? O(100)GeV EWKino LHC! How far? SUSY Model? 29 /49

30 O u t l i n e 0. Introduction Why I like SUSY? A nightmare Muon g-2 anomaly 1. Muon g-2 v.s. LHC 2. CP-safe Gravity Mediation 30 /49

31 SUSY model for muon g-2? SUSY model? m [TeV] /49

32 SUSY model for muon g-2? SUSY model? CMSSM, mgmsb m [TeV] 10 [constrained MSSM] [minimal gauge-mediated SUSY breaking] Ghilencea, Lee, Park [ ] See also: Endo, Hamaguchi, SI, Yokozaki [ ] EHSI + Nakayama [ ] 1 RG running example (Fig from SUSY Primer ) /49

33 SUSY model for muon g-2? Ghilencea, Lee, Park [ ] SUSY model? CMSSM m [TeV] 10 EXTEND NUGM (non-universal gaugino mass) 1 RG running example (Fig from SUSY Primer ) /49

34 SUSY model for muon g-2? Ghilencea, Lee, Park [ ] SUSY model? CMSSM m [TeV] 10 EXTEND NUGM (non-universal gaugino mass) 1 RG running example (Fig from SUSY Primer ) /49

35 SUSY model for muon g-2? SUSY model? CMSSM EXTEND NUGM (non-universal gaugino mass) Just a parameter set. Flavor & CP problems. CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. 35 /49

36 SUSY model for muon g-2? SUSY model? CMSSM EXTEND NUGM (non-universal gaugino mass) Just a parameter set. Flavor & CP problems. partially CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. 36 /49

37 SUSY model for muon g-2? SUSY model? CMSSM EXTEND NUGM (non-universal gaugino mass) Just a parameter set. 1 Flavor & CP problems. partially 2 CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. 37 /49

38 What is SUSY CP problem? CP problem? MSSM... -parameters Unaligned CP-violation Generic problem in O(100)GeV SUSY. [electric dipole moment] ACME collab. [ ] 38 /49

39 What is SUSY CP problem? CP problem? MSSM... -parameters Unaligned CP-violation Generic problem in O(100)GeV SUSY. [electric dipole moment] ACME collab. [ ] 39 /49

40 Polonyi model has SUSY-CP problem Ex.) Polonyi model superfield to break SUSY MSSM superfields MSSM superpotential constant Hidden sector Visible sector (i.e. MSSM) 40 /49

41 Polonyi model has SUSY-CP problem unaligned phases CP-viol. 41 /49 Ex.) Polonyi model superfield to break SUSY

42 Polonyi model: analysis [vanishing cosmo. const.] 42 /49

43 SUSY model for muon g-2? SUSY model? CMSSM EXTEND NUGM (non-universal gaugino mass) Just a parameter set. 1 Flavor & CP problems. partially 2 CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. 43 /49

44 CP-safe gravity mediation: Simplest example Feature: Shift symmetry on Z SUSY in Kähler K Izawa, Kugo, Yanagida [ ] complicated function...only one no misalignment where [invariant] 44 /49

45 CP-safe gravity mediation: Simplest example Feature: Shift symmetry on Z SUSY in Kähler K Izawa, Kugo, Yanagida [ ] complicated function but Example: SUSY...only one no misalignment where [invariant] 45 /49

46 CP-safe gravity mediation: Analysis with [vanishing cosmo. const.] (constraints on the function s) 46 /49

47 CP-safe gravity mediation: Gaugino masses Gaugino mass From anomaly of (broken) shift sym. Ex.) from above-gut structure. 47 /49

48 CP-safe gravity mediation CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. Ex.) from above-gut structure. 48 /49

49 CP-safe gravity mediation CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. are aligned. CP-violation from sfermion still remains. should be solved together with flavor problem. (OR:? 49 /49

50 Summary 50 /49

51 Summary if EWKino = O(100)GeV, SUSY anomaly Which channel? O(100)GeV EWKino LHC! How far? CP-safe GM SUSY Model? 51 /49

52 Summary 8TeV, 13.0/fb ATL-CONF CP-safe Gravity Mediation Models for NUGM. CP-problems partially solved. LSP: where 52 /49