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NEW PHYSICS PHASE FROM CHARGINO YILI WANG IOWA STATE UNIVERITY SUPER B FACTORY WORKSHOP IN HAWAII JANUARY 19-22,2004
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2 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 CP Asymmetry in B system. New Phase From Chargino. Numerical Results. Summary and Conclusion. Y. Wang, hep-ph/0309290, to be published in PRD.
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3 A single phase in CKM matrix All of CP asymmetries in B system Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 In Standard Model: CP Asymmetries in B System
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4 CKM matrix is unitary Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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5 Definition: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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6 are mixing parameters. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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7 Two CP Violation Sources: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 (a) Mixing (b) Decay amplitude
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8 In Standard model Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Browder@LP03
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9 CP comes from mixing in very good agreement with SM. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 SM prediction:
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10 In SM, No tree level diagrams.B K Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 CP Asymmetries in
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11 Decay Amplitude: CP comes from mixing. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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12 Measurement: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 ~2σ deviation with SM prediction. Need new physics.
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13 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Both SM and New physics are at one loop. Possible new physics change only SUSY is significant candidate. SM dominate tree level diagrams. New physics enter only at one loop level.
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14 SUSY in CP Asymmetry New Phase From Chargino 1.Gluino loop 2.Chargino loop 3.Neutralino loop. Neutralino loop can be ignored. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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15 Box Penguin ignored Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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16 Focus on chargino loop contributions Special Frame: Down-type squark mass matrix diagonalized. No down-type intergeneration mixing. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 no gluino loop contributions.
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17 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Chargino diagrams:
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18 Up squark mass matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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19 Define: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 diagonalized mass matrix: Mass eigenstates: Gauge eigenstates:
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20 Chargino Mass Matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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21 Mixing angle: Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004
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22 Wilson coefficients: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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23 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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24 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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25 Hadronic matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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26 Numerical Results: Three Scenario: 1.Left-Left Mixing Dominant. 2.Right-Right Mixing Dominant. 3.Left-Left plus Right-Right Mixing. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 hep-ph/0309290, to be published in PRD
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27 Left-Right and Right-Right mixings are ignored. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 One phase and one mixing angles 1.Left-Left Mixing: Parameter space: New Phase
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28 Constraints: Severe bound on mixing Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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29 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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30 Large deviation from SM prediction. large chargino influences. special property on Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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31 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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32 3. Left-Left + Right-Right Mixing Too many parameters. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Assumption:
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33 Parameter space: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Constraints:
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34 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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35 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Scan Region:
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36 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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37 Conclusion Chargino loop did give large contribution to CP asymmetry. It can compensate the 2.7σ deviation in some region. Results depend on parameter choice. In general, gluino loop provide large contribution. SUSY contributions include chargino and gluino loop. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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38 Left-Left mixing : Within constraints, large SUSY chargino contribution to CP asymmetry in Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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40 2. Right-Right Mixing Mixing matrix: Parameter space: Constraints:
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42 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004
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44 Parameters:
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46 Loop function: Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004
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47 Many assumptions in κ estimation. Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004
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