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Published bySuryadi Herman Yuwono Modified over 6 years ago
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B physics and supersymmetry with general flavor mixing
蒲郡 B physics and supersymmetry with general flavor mixing Ken-ichi Okumura (Tohoku University) In collaboration with John Foster and Leszek Roszkowski Based on hep-ph/ , hep-ph/ , hep-ph/ , hep-ph/
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Plan of talk Introduction Supersymmetry with general flavor mixing
b-s transitions Conclusion
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The SM: CKM paradigm
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Why Supersymmetry ? SM S.P.Martin (1997) MSSM
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Supersymmetry doubles flavor
Soft mass Tri-linear term Gaugino mass
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Minimal flavor violation (MFV)
Super CKM basis
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General Flavor Mixing
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Origin of flavor mixing
Ex) Seesaw mechanism Large flavor mixing (MSN matrix) “Probe of GUT scale int.” SUSY GUT Radiative correction S.Baek, T.Goto Y.Okada KO (2000)
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Collider vs flavor physics
LHC SUSY Lagragian Mass spectrum Flavor Physics ! mixing Complementary each other
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b →s transitions
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NP effects interfere with the SM
M.Misiak&M.Steinhauser (2006) NP effects interfere with the SM GFM Add MFV
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MFV
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Not diagonal ! SUSY KO and L.Roszkowski (2001)
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Higgs mediated FCNC Integrate out SUSY particles Non-holomorphic NG
:Flavor diagonal
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J.Foster, KO, L.Roszkowski (2005)
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P.Ball and R.Fleischer (2006)
Lattice CKM angle & side
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MFV
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All combined : single insertion
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CP violation in CKMfitter UTfit
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Conclusion We reported current limits on flavor mixing in b-s transitions in minimal supersymmetry (beyond leading order+Higgs mediated). Constraint from Bs mixing is quite severe for RR and RL mixing at moderate-large tanβ(~30)despite relatively large theoretical uncertainty. Precision measurement of Φ3 + Bs mixing can improve the bound (or find NP) as well as BR(Bs→μμ). Low tanβ region can be covered by tCPV in radiative decay. Combined with the spectrum measurement, such a measurement provides a clue to high energy scale.
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