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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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Presentation on theme: "NEW PHYSICS PHASE FROM CHARGINO YILI WANG IOWA STATE UNIVERITY SUPER B FACTORY WORKSHOP IN HAWAII JANUARY 19-22,2004."— Presentation transcript:

1 NEW PHYSICS PHASE FROM CHARGINO YILI WANG IOWA STATE UNIVERITY SUPER B FACTORY WORKSHOP IN HAWAII JANUARY 19-22,2004

2 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.

3 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

4 4 CKM matrix is unitary Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004  

5 5 Definition: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

6 6 are mixing parameters. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

7 7 Two CP Violation Sources: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 (a) Mixing (b) Decay amplitude

8 8 In Standard model Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Browder@LP03

9 9 CP comes from mixing in very good agreement with SM. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 SM prediction:

10 10 In SM, No tree level diagrams.B  K Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 CP Asymmetries in

11 11 Decay Amplitude: CP comes from mixing. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

12 12 Measurement: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 ~2σ deviation with SM prediction. Need new physics.

13 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.

14 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

15 15 Box Penguin ignored Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

16 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.

17 17 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Chargino diagrams:

18 18 Up squark mass matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

19 19 Define: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 diagonalized mass matrix: Mass eigenstates: Gauge eigenstates:

20 20 Chargino Mass Matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

21 21 Mixing angle: Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004

22 22 Wilson coefficients: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

23 23 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

24 24 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

25 25 Hadronic matrix: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

26 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

27 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

28 28 Constraints:  Severe bound on mixing Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

29 29 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

30 30 Large deviation from SM prediction. large chargino influences. special property on Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

31 31 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

32 32 3. Left-Left + Right-Right Mixing Too many parameters. Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Assumption:

33 33 Parameter space: Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Constraints:

34 34 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

35 35 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004 Scan Region:

36 36 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

37 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

38 38 Left-Left mixing : Within constraints, large SUSY chargino contribution to CP asymmetry in Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

39 39

40 40 2. Right-Right Mixing Mixing matrix: Parameter space: Constraints:

41 41

42 42 Yili Wang - Super B Factory in Hawaii - 21 Jan. 2004

43 43

44 44 Parameters:

45 45

46 46 Loop function: Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004

47 47 Many assumptions in κ estimation. Yili Wang - Super B Factory in Hawaii - 22 Jan. 2004


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