Search for $\tau \to \mu +\gamma$ decay at Super $c-\tau$ factory

Abstract

A Monte Carlo study of possible background processes in a search for $\tau \to \mu \gamma$ decay has been performed for conditions of the Super $c-\tau$ factory (CTF) (at a center-of-mass energy 3.686 GeV, 3.77 GeV and 4.17 GeV). The background from ${\tau }^{+}{\tau }^{-}$ events has been analysed. Selection criteria for background suppression are suggested and necessary requirements on the detector characteristics have been found. The CTF can successfully compete with the Super B-factory in a search for $\tau \to \mu \gamma$ decay.

arXiv comment3 pages, 1 figures; contribution to the Proceedings of the PHIPSI11 Workshop (Novosibirsk, Russia, 19-22 September 2011)

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