1. 超对称的现状和未来探索 杨 金 民杨 金 民杨 金 民杨 金 民 2014.4.4 中国科大 中科院理论物理所

2. Outline 2 Status of SUSY in light of LHC data 1 Introduction to SUSY 4 Conclusion 3 Further probes of SUSY at LHC-14/HL-LHC at LHC-14/HL-LHC at Xenon/LUX at Xenon/LUX at Higgs factory at Higgs factory at 100 TeV pp at 100 TeV pp

3. 1 Introduction to SUSY With the discovery of the Higgs boson, the SM is completed. New physics beyond the SM certainly exists. If we have naturalness, new physics should appear around TeV scale. SM Particles

4. The SM has the naturalness (or fine-tuning) problem Gerard ’t Hooft, Beijing Feb 25, 2014

5. Nathan Seiberg IAS Feb 20, 2014

6. Edward Witten Hunter College Mar 4, 2013

7. Savas Dimopoulos Beijing Feb 24, 2014

10. Savas Dimopoulos Beijing Feb 24, 2014

11. Savas Dimopoulos Beijing Feb 24, 2014

12. CMSSM MSSM Split-SUSY NMSSM nMSSM … mSUGRA GMSB AMSB … … SUSY

13. Sparticle search results at LHC Now, we have various expt data: Higgs data at LHC Dark matter data (Planck, Xenon, LUX) Low energy collider data ( EWPD, flavor, g-2, … ) Can SUSY satisfy/explain all current data ? Search for SUSY at LHC-14, Xenon, Higgs factory, SppC

14. 2 Status of SUSY in light of LHC data BBC News Nov 19, 2012 SUSY may not be dead, but these latest results have certainly put it into hospital

15. AMSB and GMSB: Baer, Barger, Mustafayev, arXiv:1202.4038 To give a 125 GeV Higgs, SUSY particles are above 10 TeV  not accessible at LHC  fine-tuning

16. arXiv: 1207.3698; 1202.5821 Cao, Heng, JMY, Zhu CMSSM/mSUGRA MSSM, NMSSM, nMSSM: mSUGRA

17. Dynamical solution to  -problem Solve little hierarchy problem NMSSM Theoretically motivated from top-down view E6 models (string-inspired) SO(10)  U(1)  … string scale at low energy: S, H u, H d + heavy particles U(1) global PQ to break U(1) PQ (NMSSM) tadpole (nMSSM) cubic term

18. Natural SUSY arXiv:1308.5307 Han, Hikasa, Wu, JMY, Zhang

19. Split-SUSY arXiv:1310.1750 Wang, Wang, JMY

20. So, the status of SUSY: CMSSM/mSUGRA: can give 125 GeV Higgs; but cannot explain muon g-2 MSSM: can fit all data well but suffer from little fine-tuning nMSSM: nearly excluded (suppress diphoton rate too much) NMSSM: most favored (can fit all data well without fine-tuning) GMSB/AMSB: can give 125 GeV Higgs with very heavy stop (fine-tuning) No need to give up these fancy models (GMSB ， CMSSM ， mSUGRA, …) Split-SUSY: no problem (give up naturalness)

21. One way to repair GMSB: Kang, Li, Liu, Tong, JMY, arXiv:1203.2336 can have large At ， giving 125 GeV Higgs without very heavy stops accessible at LHC

22. For CMSSM/mSUGRA, give up muon g-2 work in progress

23. CMSSM/mSUGRA

24. 3 Further Probes of SUSY Through some rare processes Through looking for sparticles (stop, higgsinos) Higgs decays to Z-photon vs diphoton Higgs decays to goldstini Higgs pair production Higgs decays to dark matter 3.1 Probe SUSY at LHC-14 & HL-LHC Top decay t->ch Higgs decays to singlet-like scalar

25. arXiv:1206.3865 Cao, Han, Wu, JMY, Zhang Search for stop pair in natural-SUSY

26. arXiv:1206.3865 Han, Kobakhidze, Liu, Saavedra, Wu, JMY Higgsino pair production in natural-SUSY Important for natural SUSY

27. Higgsino pair production in multi-sector SUSY breaking arXiv:1403.5731 Hikasa, Liu, JMY, Wang

28. Higgs pair production at LHC-14 arXiv:1307.3790 Han, Ji, Wu, Wu, JMY arXiv:1301.6437 Cao, Heng, Shang, Wan, JMY

30. Z  versus   at LHC-14 arXiv:1301.4641 Cao, Wu, Wu, JMY

31. Higgs decays to dark matter in NMSSM Higgs decays to dark matter in NMSSM NMSSM arXiv:1311.0678 Cao, Han, Wu, JMY

32. Higgs decays to singlet-like scalar in NMSSM arXiv:1309.4939 Cao, Ding,Han, JMY, Zhu

33. Higgs decays to goldstini in multi-sector SUSY breaking Higgs decays to goldstini in multi-sector SUSY breaking arXiv:1301.5479 Liu, Wang, JMY

34. Cao, Han, Wu, JMY, Zhang 1403:???? SUSY residual effects in top decay SUSY residual effects in top decay MSSM Squark: 2-5 TeV

35. 3.2 Probe SUSY via dark matter detection CMSSM/mSUGRA in progress

36. MSSM, NMSSM arXiv: 1207.3698 Cao, Heng, JMY, Zhu

37. NMSSM (light dark matter) arXiv:1311.0678 Cao, Han, Wu, JMY arXiv:1104.1754 Cao, Hikasa, Wang, JMY

38. Split-SUSY arXiv:1310.1750 Wang, Wang, JMY

39. 3.3 Probe SUSY at Higgs factory Direct production of sparticles: For an e + e - Higgs factory (250 GeV ) For an e + e - Higgs factory (250 GeV ) : Direct search of SUSY is limited We may look for quantum effects of SUSY (by T. Li et al)

40. So far, SUSY Higgs couplings can deviate from SM significantly: arXiv:1207.3698 Cao, Heng, JMY, Zhu

41. Han, Wu, Wu,JMY, in progress SUSY Higgs production at e + e - Higgs factory (250 GeV ) can sizably differ from SM:

42. SUSY  arXiv:1402.3050 Hu, Liu, Ren, Wu

43. A  Higgs factory (E  >125 GeV)

44. Finally, can a 100 TeV pp collider find SUSY particles ?

46. 4 Conclusion Confronted with LHC Higgs data: Some SUSY models are healthy Some SUSY models need repairing P robe SUSY at LHC: Higgs decays to Z-photon vs diphoton Higgs decays to Z-photon vs diphoton Higgs decays to goldstini Higgs decays to goldstini Higgs pair production Higgs pair production P robe SUSY at Higgs factory (via Higgs couplings or quantum effects): Looking for sparticles (stop, higgsino) Top decay t -> ch Top decay t -> ch Higgs decays to dark matter Higgs decays to dark matter P robe SUSY at 100 TeV pp collider

47. Thanks