Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions

Details Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions

1993-07-20

arxiv.org/abs/hep-ph/9307301v1

Phys.Lett. B315 (1993) 372-378

Physics

High Energy Physics

High Energy Physics - Phenomenology

TRI-PP-93-66. 12pp (Plain LATEX)+4 fig not incl. PostScript file of figs available (~3MB), contact Corrie Kost KOST@TRIUMF.CA.

Scientific paper

10.1016/0370-2693(93)91627-Y

Supersymmetric (SUSY) theories are often thought to give large branching ratios for $b \rightarrow s \gamma$ from charged Higgs loops. We show that in many cases chargino loop contributions can cancel those of the Higgs, and SUSY can give $B(b \rightarrow s \gamma)$ at or below the \SM\ prediction. We show this occurs because the large stop mass splittings usually found in SUSY break a GIM mechanism suppression. These effects are strongly enhanced by large $\tan\beta$, so that $B(b \rightarrow s \gamma)$ is very sensitive to the value of $\tan\beta$, contrary to what has been claimed. We also note that the supergravity relation $B_0 = A_0-1$ is somewhat disfavored over the general case.

Affiliated with

Also associated with

No associations

Rating

Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions 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 Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supersymmetric $b \rightarrow s γ$ with Large Chargino Contributions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317700