Production of $(τ^+τ^-)_b$ in electron positron collisions

Details Production of $(τ^+τ^-)_b$ in electron positron collisions Production of $(τ^+τ^-)_b$ in electron positron collisions

2008-07-25

arxiv.org/abs/0807.4114v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, submitted to Int. Jour. Mod. Phys. A

Scientific paper

$(\tau^+\tau^-)_b$ is an atom of simple hydrogenlike structure similar to positronium $(e^+e^-)_b$ and $(\mu^+\mu^-)_b$. In this paper energy levels and decay widths of different decay channels of $(\tau^+\tau^-)_b$ are given. Cross section of production of this atomic system in $e^+e^-$ annihilation taking into account radiative corrections is calculated. According to our estimates 886 $(\tau^+\tau^-)_b$ atoms may be produced at BEPCII and 29 $(\tau^+\tau^-)_b$ atoms are produced at VEPP-4M under the present experimental conditions.

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