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SUSY at CEPC and SPPC

This paper discusses the status of various SUSY models and explores different ways to probe SUSY at LHC-14, CEPC, and SPPC using sparticle searches, rare processes, and quantum effects. It concludes that some SUSY models are still viable and suggests future directions for SUSY research.

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SUSY at CEPC and SPPC

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  1. SUSY at CEPC and SPPC Tianjun Li, Jin Min Yang (ITP, Beijing) IHEP, 2014.8.14

  2. Outline 1 Introduction 2 Probe SUSY at LHC-14 3 Probe SUSY at CEPC and SPPC • at CEPC • at SPPC 4 Conclusion

  3. 1 Introduction: Status of SUSY CMSSM mSUGRA GMSB AMSB … … SUSY MSSM NMSSM nMSSM … … Split-SUSY

  4. Now, we have various expt data: • Sparticle search results at LHC • Higgs data at LHC • Dark matter data (Planck, Xenon, LUX) • Low energy collider data (EWPD, flavor, g-2, …)

  5. SUSY can satisfy/explain all current data BBC News Nov 19, 2012 SUSY may not be dead, but these latest results have certainly put it into hospital

  6. For example arXiv: 1207.3698; 1202.5821 Cao, Heng, JMY, Zhu mSUGRA

  7. For CMSSM/mSUGRA: ok except muon g-2 and fine-tuning work in progress

  8. The status of SUSY GMSB/AMSB: can give 125 GeV Higgs with very heavy stop (fine-tuning) 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) Split-SUSY: no problem (give up naturalness)

  9. 2 Probe SUSY at LHC-14 • Through looking for sparticles (like stop, higgsinos) arXiv:1206.3865 (Cao, Han, Wu, JMY, Zhang) arXiv:1206.3865 (Han, Kobakhidze, Liu, Saavedra, Wu, JMY) • Through some rare processes Higgs pair production arXiv:1301.6437(Cao, Heng, Shang, Wan, JMY) arXiv:1307.3790(Han, Ji, Wu, Wu, JMY) Higgs decay to Z-photon vs diphoton arXiv:1301.4641(Cao, Wu, Wu, JMY) Higgs decay to dark matter arXiv:1311.0678 (Cao, Han, Wu, JMY) Higgs decay to pseudo-goldstino arXiv:1301.5479(Liu, Wang, JMY) Top decay t->ch arXiv: 1404.1241 (Cao, Han, Wu, JMY, Zhang)

  10. For example, Z versus   at LHC-14: arXiv:1301.4641(Cao, Wu, Wu, JMY)

  11. CMSSM/mSUGRA at LHC-14 & XENON: work in progress

  12. Split-SUSY at XENON: arXiv:1310.1750 Wang, Wang, JMY

  13. 3 Probe SUSY at CEPC and SPPC 3.1 Probe SUSY at CEPC Direct production of sparticles For an e+e- Higgs factory (250 GeV ) : Direct search of SUSY is limited We may look for quantum effects of SUSY

  14. Higgs production at CEPC (250 GeV ) Han, Wu, Wu,JMY, work in progress SUSY

  15. In MSSM

  16. In NMSSM

  17. arXiv:1402.3050 Hu, Liu, Ren, Wu SUSY

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

  19. 3.2 Probe SUSY at SPPC Stop mass range in MSSM:

  20. Stop search at SPPC: arXiv:1406.4512 T. Cohen et al

  21. Stop search at LHC-14: arXiv:1206.3865 Cao, Han, Wu, JMY, Zhang

  22. Gluino search at SPPC: arXiv:1310.0077 1311.6480 T. Cohen et al

  23. Squark search at SPPC: arXiv:1310.0077 1311.6480 T. Cohen et al

  24. Gluino-Squark search at SPPC: arXiv:1310.0077 1311.6480 T. Cohen et al

  25. Higgsino search at SPPC: In split-SUSY, only gauginos and higgsinos are light

  26. (mono-jet) at LHC-14 arXiv:1206.3865 Han, Kobakhidze, Liu, Saavedra, Wu, JMY

  27. (mono-jet) at SPPC arXiv:1404.0682 M. Low, L.T. Wang

  28. 4 Conclusion Confronted with LHC Higgs data: • Some SUSY models are still quite healthy Probe SUSY at LHC: various ways Probe SUSY at CEPC: • Through gaugino productions • Through virtual effects in Higgs productions Probe SUSY at SPPC: • Through sparticle productions (push sparticles to 10 TeV)

  29. thanks for your attention

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