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,

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Presentation transcript:

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

Kihyeon Cho CKM Matrix 2 αβγ β α γ

Kihyeon Cho Heavy Flavor Experiments ( ) 3 Belle/Belle IICDFLHCb Year (Belle) 2014 – (Belle II) 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 pb -1

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

LHCb 5

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 cm -2 s -1  bb = 300~500  b  inel /  bb = 160 => 1 “year” = 2 fb -1 (10 12 bbar)

Kihyeon Cho B LHCb 7

Kihyeon Cho Bs->J/psi f0(980) 8 f 0 (980) ->π+π-

Kihyeon Cho 9

10

Kihyeon Cho 11

Kihyeon Cho 12 A. Golutvin

Belle II 13

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

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

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

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

Kihyeon Cho 18 Start 2014 Luminosity vs. Physics

Kihyeon Cho 19 Y. Kwon

Kihyeon Cho 20 M. Nakao

Kihyeon Cho 21 M. Nakao

Kihyeon Cho 22

Kihyeon Cho 23

Kihyeon Cho 24 M. Nakao

Kihyeon Cho 25 Y. Hori

Kihyeon Cho 26 Y. Hori

Kihyeon Cho 27 Y. Hori

Kihyeon Cho 28 Y. Hori

Kihyeon Cho 29 Y. Kwon

Kihyeon Cho 30

Kihyeon Cho 31 M. Nakao

Kihyeon Cho 32 M. Nakao

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

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

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

Kihyeon Cho Summary 36

Kihyeon Cho 37

Back up 38

Kihyeon Cho t 39

Kihyeon Cho 40

Kihyeon Cho 41

Kihyeon Cho 42

Thank you. 43