Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l-

Details Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l- Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l-

2003-11-20

arxiv.org/abs/hep-ph/0311253v1

Phys.Rev. D69 (2004) 094030

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 5 figures

Scientific paper

10.1103/PhysRevD.69.094030

The long-distance contribution via the two-photon intermediate state to the forward-backward asymmetries in decays K+ --> pi+ l+ l- (l=e and mu) has been studied within the standard model. In order to evaluate the dispersive part of the K+ --> pi+ gamma* gamma* --> pi+ l+ l- amplitude, we employ a phenomenological form factor to soften the ultraviolet behavior of the transition. It is found that, this long-distance transition, although subject to some theoretical uncertainties, can lead to significant contributions to the forward-backward asymmetries, which could be tested in the future high-precise experiments.

Affiliated with

Also associated with

No associations

Rating

Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l- 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 Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-406216