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Probe New Physics in Heavy Flavor: await for

SI 2014 @ Fuji Yoshida. Probe New Physics in Heavy Flavor: await for. In Collaboration with Wei-Shu Hou and Masaya Kohda. Fanrong Xu National Taiwan University 2014. 8. 23. Outline. Introduction (and, or) Our results in SM4. The role of flavor physics.

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Probe New Physics in Heavy Flavor: await for

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  1. SI 2014 @ Fuji Yoshida Probe New Physics in Heavy Flavor: await for In Collaboration with Wei-Shu Hou and Masaya Kohda Fanrong Xu National Taiwan University 2014. 8. 23

  2. Outline • Introduction (and, or) • Our results in SM4 Fanrong Xu

  3. Fanrong Xu

  4. Fanrong Xu

  5. The role of flavor physics • Flavor physics is one of the important ways to probe NP : indirect detection. • Superstars in flavor in 2010s A.J. Buras, J. Girrbach, 1306.3775 Fanrong Xu

  6. The evolution of Straub [Moriond 2012] Straub [NuovoCim. C35 1 (2012) 249-256] Fanrong Xu

  7. The upcoming combination of CMS PRL 111 (2013) 101804 LHCb PRL 111 (2013) 101805 Preliminary “3σ” Fanrong Xu

  8. The measurement of • PLB2012, 1 fb−1 • PRL2012, 0.37 fb−1 —Tagging— • PRD2013, 1 fb−1 0.01 ± 0.07 ± 0.01 s = 0.00 ± 0.07

  9. Moral from φs • 2012, 1 fb−1 • 2012, 0.37 fb−1 • 2013, 1 fb−1 • 2013, 1 fb−1 —Tagging— ? 0.070 ± 0.068 ± 0.008 • 2014, 3 fb−1 • 2014/5, 3 fb−1 If Central Value staysLarge Deviation+ from SM CMS/ATLAS Provide Sanity Check

  10. Enhanced Bd→μ+μ−? NP in b → d KOTO Positive φs? NP CPV in b → s

  11. T. Nomura, ICHEP 2014 Fanrong Xu

  12. A. Sergi [NA62], ICHEP 2014 Fanrong Xu

  13. 4G quark as an example of NP • Sequent 4G quark direct search , • The discovery of Higgs boson in 2012 … SM4 Fanrong Xu

  14. @ SM4 Updated from Hou, Kohda, FX, Phys. Rev. D 87, 094005 (2013) [1302.1471] Scenario 1 & 3 Scenario 2 Fanrong Xu

  15. Scenario 1: enhanced & PDG purple (light): 1 (2) sigma allowed region Hou, Kohda, FX, to appear, 2014 Fanrong Xu

  16. Scenario 1: enhanced & PDG The prediction for Current G-N bound gives a critical selection; In 1 sigma region, 10 times enhancement of from SM is easily achieved; In 2 sigma region, considering the effort from NA62 which would reduce the Grossman-Nirbound, the prediction in SM4 is approaching GN bound; The discovery of in KOTO experiment is hopeful. Fanrong Xu

  17. SC2: SM-like and LHCb SC3: enhanced and LHCb In 2 sigma region together with large of , can touch GN bound The solution space is narrow even in 2 sigma region, and is as low as SM-like, hard to be observed. Fanrong Xu

  18. Summary • With more rich data accumulated at LHC, and will be precisely measured soon, which indicates the direction of NP. • If NP appears in while is SM-like, could be large and approach G-N bound. • If NP appears in while is SM-like, could touch G-N bound. • If is observed enhanced, is slightly deviated from SM model in positive direction, will then be challenging to be observed in near future . Fanrong Xu

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