CP violation in semi-leptonic decays of the top quark within MSSM

Details CP violation in semi-leptonic decays of the top quark within MSSM CP violation in semi-leptonic decays of the top quark within MSSM

1999-04-05

arxiv.org/abs/hep-ph/9904228v1

Eur.Phys.J.C12:125-135,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 12 eps figures

Scientific paper

10.1007/s100529900211

We calculate the CP-violating effects in the top quark semi-leptonic three body decays induced by the supersymmetric CP-odd phase of the top squark trilinear soft breaking term $\arg(A_t)$. The light top squark mass is assumed to be close to the top quark mass $m_{\tilde{t}}\sim m_t$. The CP-conserving phase is provided by the $\chi^+$ and $\chi^0$ cut. We find that the partial rate asymmetry is in the 0.1% level. In the most favorable parameter region the decay rate asymmetr can reach up to 0.55%.

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