Probing light pseudoscalar, axial vector states through ${\eta }_b\to {\tau }^{+}{\tau }^{-}$

Ahmed Rashed, Murugeswaran Duraisamy, Alakabha Datta

In this paper we explore the decay ${\eta }_b-->{\tau }^{+}{\tau }^{-}$ as a probe for a light pseudoscalar or a light axial vector state. We estimate the standard model branching ratio for this deca…