dc.contributor.author |
Vaidya, Rishikesh |
|
dc.date.accessioned |
2024-02-24T04:48:34Z |
|
dc.date.available |
2024-02-24T04:48:34Z |
|
dc.date.issued |
2004-11 |
|
dc.identifier.uri |
https://arxiv.org/abs/hep-ph/0403148 |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14463 |
|
dc.description.abstract |
We present a systematic analysis of all the contributions at the leading log order to the branching ratio of the inclusive radiative B decay, B --> X_s + gamma in the framework of supersymmetry without R-parity. The relevant set of four-quark operators involved in QCD running are extended from 6 (within SM and MSSM) to 24, with also many new contributions to the Wilson coefficients of (chromo)magnetic penguins for either chiral structure. We present complete analytical results here without any a priori assumptions on the form of R-parity violation. Mass eigenstate expressions are given, hence the results are free from the commonly adopted mass-insertion approximation. In the numerical analysis, we focus here only on the influence of the trilinear lambda-prime couplings and report on the possibility of a few orders of magnitude improvement for the bounds on a few combinations of the lambda-prime couplings. Our study shows that the Wilson coefficients of the current-current operators due to R-parity violation dominate over the direct contributions to the penguins. However, the inter-play of various contributions is complicated due to the QCD corrections which we elaborate here. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
ARXIV |
en_US |
dc.subject |
Physics |
en_US |
dc.subject |
High Energy Physics - Phenomenology (hep-ph) |
en_US |
dc.subject |
Supersymmetry |
en_US |
dc.subject |
R-parity Violation |
en_US |
dc.title |
Radiative B decays in Supersymmetry without R-parity |
en_US |
dc.type |
Article |
en_US |