1. Belle II vs. LHCb Kihyeon Cho High Energy Physics Team KISTI (Korea Institute of Science and Technology Information) March 11, 2011 BSM mini-workshop KIAS, Korea 1

2. Kihyeon Cho CKM Matrix 2 αβγ β α γ

3. Kihyeon Cho Heavy Flavor Experiments (2011.02) 3 Belle/Belle IICDFLHCb Year1998-2010 (Belle) 2014 – (Belle II) 2001-2009- PlaceKEK, JapanFermilab, USACERN, Europe Collaboratio n 13/47/~300(Belle II) (Nat./Ins./member) 15/63/62015/54/730 σ1 nb (10GeV) 150 μb (2TeV) 300~500 μb (7~14TeV) Current Luminosity 1 ab -1 9 fb -1 10 pb -1

4. Kihyeon Cho 4 Not so near future!! Grossman, Ligeti, Nir (May 2009)

5. LHCb 5

6. Kihyeon Cho Heavy Flavor Physics by LHCb LHCb is a heavy flavour precision experiment searching for New Physics in CP Violation and Rare Decays. √s = 7~14 TeV LHCb: L =2-5 x 10 32 cm -2 s -1  bb = 300~500  b  inel /  bb = 160 => 1 “year” = 2 fb -1 (10 12 bbar) http://www.cern.ch

7. Kihyeon Cho B physics @ LHCb 7 http://www.cern.ch

8. Kihyeon Cho Bs->J/psi f0(980) 8 f 0 (980) ->π+π- http://www.cern.ch

9. Kihyeon Cho 9

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11. Kihyeon Cho 11

12. Kihyeon Cho 12 A. Golutvin

13. Belle II 13

14. Kihyeon Cho BelleContentBelle II 1998~2010Time Schedule2014~ 8 X 3.5 GeVEnergy7 X 4 GeV 1 ab -1 Luminosity50 ab -1 1 BillionBBbar events50 Billion CP measurementGoalNew Physics Belle Belle II 14 Belle vs. Belle II To handle 50 times more data and grid farms => New Data Handling System

15. Kihyeon Cho Penguin diagram bd B0B0 sd time  KSKS tss M. Yamakuchi

16. Kihyeon Cho If a new particle X exists… bd B0B0 sd  KSKS Xss This measurement is sensitive to new physics such as SUSY. M. Yamakuchi

17. Physics at Belle II New source of CP violation New source of flavor mixing LFV  decays SUSY breaking mechanism Precision test of KM scheme Super-high statistics measurements:  S, sin 2  W, etc. Charm physics New resonances, New resonances, D 0 D 0 mixing… D 0 D 0 mixing… M. Yamakuchi

18. Kihyeon Cho 18 Start 2014 Luminosity vs. Physics 202320182013

19. Kihyeon Cho 19 Y. Kwon

20. Kihyeon Cho 20 M. Nakao

21. Kihyeon Cho 21 M. Nakao

22. Kihyeon Cho 22

23. Kihyeon Cho 23

24. Kihyeon Cho 24 M. Nakao

25. Kihyeon Cho 25 Y. Hori

26. Kihyeon Cho 26 Y. Hori

27. Kihyeon Cho 27 Y. Hori

28. Kihyeon Cho 28 Y. Hori

29. Kihyeon Cho 29 Y. Kwon

30. Kihyeon Cho 30

31. Kihyeon Cho 31 M. Nakao

32. Kihyeon Cho 32 M. Nakao

33. Kihyeon Cho More penguin modes @ KISTI B → Φπ Pure EW penguin mode SM Br ~O(10 -8 ) Babar with 232M BB: UL(Φπ + ) < 2.4*10 -7 @90%CL2.4*10 -7 @90%CL UL(Φπ 0 ) < 2.8*10 -7 @90%CL2.8*10 -7 @90%CL Draft is almost ready. B + → ρ 0 K *+ Penguin dominant status Work on progress 33 Junghyun Kim, K. Cho, Nakao, …

34. Kihyeon Cho There are a few interesting results from the heavy flavor physics experiments indicating hints of something unknown… CP Violation and mixing Leptonic B decay Penguin decays NP or not-NP, we do not have clear understanding, yet. 34 Summary

35. Kihyeon Cho What is ahead The case for flavor physics in the LHC era is still compelling. LHCb is great tool for heavy flavor physics. But some aspects, e.g. modes with neutrino will reqiure Super B (Belle II). 35

36. Kihyeon Cho Summary 36

37. Kihyeon Cho 37

38. Back up cho@kisti.re.kr 38

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42. Kihyeon Cho 42

43. Thank you. cho@kisti.re.kr 43