New physics upper bound on the branching ratio of B_s --> l+ l- gamma

Details New physics upper bound on the branching ratio of B_s --> l+ l- gamma New physics upper bound on the branching ratio of B_s --> l+ l- gamma

2006-03-31

arxiv.org/abs/hep-ph/0603262v2

Mod.Phys.Lett.A22:1319-1328,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Additional constraints from current data on B-->K^* gamma are considered. Present data on b-->s transitions allow a large boos

Scientific paper

10.1142/S0217732307021901

We consider the effect of new physics on the branching ratio of B_s--> l+ l- gamma where l=e,mu. If the new physics is of the form scalar/pseudoscalar, then it makes no contribution to B_s--> l+ l- gamma, unlike in the case of B_s--> l+ l-, where it can potentially make a very large contribution. If the new physics is in the form of vector/axial-vector operators, then present data on B-->(K,K^*)l+ l-, does not allow a large enhancement for B_s--> l+ l- gamma. If the new physics is in the form of tensor/pseudotensor operators, then the data on B-->(K,K^*)l+ l- gives no useful constraint but the data on B-->K^* gamma does. Here again, a large enhancement of B(B_s--> l+ l- gamma), much beyond the Standard Model expectation, is not possible. Hence, we conclude that the present data on b-->s transitions allow a large boost in B_s--> l+ l- but not in B_s--> l+ l- gamma.

Affiliated with

Also associated with

No associations

Rating

New physics upper bound on the branching ratio of B_s --> l+ l- gamma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with New physics upper bound on the branching ratio of B_s --> l+ l- gamma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New physics upper bound on the branching ratio of B_s --> l+ l- gamma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332433