R-parity violation and the decay b -> s gamma - art. no. 055007

Authors
Besmer, T Steffen, A
Citation
T. Besmer et A. Steffen, R-parity violation and the decay b -> s gamma - art. no. 055007, PHYS REV D, 6305(5), 2001, pp. 5007
Citations number
64
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6305
Issue
5
Year of publication
2001
Database
ISI
SICI code
0556-2821(20010301)6305:5<5007:RVATDB>2.0.ZU;2-Z
Abstract
We investigate the influence of the R-parity violating couplings lambda, la mbda', and lambda" on the branching ratio of b --> s gamma in the leading l ogarithmic approximation. The operator basis is enlarged and the correspond ing gamma matrix calculated. The matching conditions receive new contributi ons from the R-parity violating sector. Comparison with experiment is rathe r difficult due to the model dependence of the result.