Direct CP violation in semi-inclusive flavor-changing neutral current decays in the MSSM without $R-$parity

Abstract

Semi-inclusive decays, $\hlx$, are studied in the framework of the minimal supersymmetric standard model without $R-$parity, where $\qh$ ($\ql$) are the second or third (first or second) generation quarks with the same charge and $\xi$ is a vector meson formed by $q_j \qb_j$. The study is focused on the contributions of sfermions with $m_{}<m_{\mathrm{top}}$. In this mass region, CP asymmetries in top decays can be induced by taking into account the decay-widths of the exchanged-bosons, while in light-quark decays it can be generated due to the long-distance effects. The contributions of sfermions also alter the branching-ratios destructively or constructively depend on the phases of complex couplings of the $R-$parity violation interactions.

12 pages, LaTeX, 6 figures are included

References in corpus (2)

• New Supersymmetric Contributions to $t->cV$
• Flavour changing top decays in supersymmetric extensions of the standard model

Cited by in corpus (8)

• R-parity violating supersymmetry
• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Broken R Parity Contributions to Flavor Changing Rates and CP Asymmetries in Fermion Pair Production at Leptonic Colliders
• Flavor changing t -> c l_1^- l_2^+ decay in the general two Higgs doublet model
• t -> c H^0 decay in the general two Higgs doublet model
• P,T-violating electron-nucleon interactions in the R-parity violating minimal supersymmetric standard model
• Branching ratio and CP violation in semi-inclusive flavor-changing top decays
• Branching-ratio and CP violation in semi-inclusive flavor-changing top decays