Double Flavor Violating Top Quark Decays in Effective Theories

Details Double Flavor Violating Top Quark Decays in Effective Theories Double Flavor Violating Top Quark Decays in Effective Theories

2008-02-14

arxiv.org/abs/0802.1949v1

FrascatiPhys.Ser.46:,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

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 $tu_iH$ 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.

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