CP Violating Asymmetry in Stop Decay into Bottom and Chargino
Abstract
In the MSSM with complex parameters, loop corrections to the decay of a stop into a bottom quark and a chargino can lead to a CP violating decay rate asymmetry. We calculate this asymmetry at full one-loop level and perform a detailed numerical study, analyzing the dependence on the parameters and complex phases involved. In addition, we take the Yukawa couplings of the top and bottom quark running. We account for the constraints on the parameters coming from several experimental limits. Asymmetries of several percent are obtained. We also comment on the feasibility of measuring this asymmetry at the LHC.
Keywords
Cite
@article{arxiv.0910.0154,
title = {CP Violating Asymmetry in Stop Decay into Bottom and Chargino},
author = {Sebastian M. R. Frank and Helmut Eberl},
journal= {arXiv preprint arXiv:0910.0154},
year = {2015}
}
Comments
Contributed talk given by Sebastian Frank in June 2009 at SUSY09 - 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions, Northeastern University, Boston, USA. To appear in the AIP conference proceedings, 4 pages, 7 figures (fixed links in references)