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Chargino contributions to the CP asymmetry in B -> Phi K(S) decay | | D. Chakraverty
; E. Gabrielli
; K. Huitu
; S. Khalil
; | | Date: |
9 Jun 2003 | | Journal: | Phys.Rev. D68 (2003) 095004 | | Subject: | hep-ph | | Abstract: | We perform a model independent analysis of the chargino contributions to the CP asymmetry in B -> Phi K(S) process. We use the mass insertion approximation method generalized by including the possibility of a light right-stop. We find that the dominant effect is given by the contributions of the mass insertions deltaU_LL(32) and deltaU_RL(32) to the Wilson coefficient of the chromomagnetic operator. By considering both these contributions simultaneously, the CP asymmetry in B -> Phi K(S) process is significantly reduced and negative values, which are within the 1-sigma experimental range and satisfy the b -> s gamma constraints, can be obtained. | | Source: | arXiv, hep-ph/0306076 | | Services: | Forum | Review | PDF | Favorites | |
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