Double Flavor Violating Top Quark Decays in Effective Theories

Abstract

The possibility of detecting double flavor violating top quark transitions $t\to u_i\tau \mu$ ($u_i=u,c$) is explored in a model--independent manner, using the effective Lagrangian approach. Low--energy data, on high precision measurements, and current experimental limits are used to constraint the $t{u}_{i}H$ and $H\tau \mu$ vertices and then to calculate the branching ratio BR$(t\to u_i\tau \mu )$. If in the Standard Model BR$(t\to u_i\tau \mu )$ is of the order of $10^{-13}$$-10^{-14}$, higgs--mediated double flavor violating top quark decays can occur with branching ratios ranging from $10^{-3}$ to $10^{-4}$ for 114.4 GeV$/c^2$ $<m_H<$ $2m_W$, that is at the reach of the CERN Large Hadron Collider.

8 pages, 6 figures, 1 table. Proceedings of the XII International Conference on Hadron Spectroscopy - 8-13 October 2007, Frascati (Italy)

References in corpus (1)

• Tau tagging at Atlas and CMS

Cited by in corpus (1)

• Higgs mediated lepton flavor violating tau decays $\tau \to \mu \gamma$ and $\tau \to \mu \gamma \gamma$ in effective theories