$D_s$ decays to $η$ and $η^\prime$ final states: a phenomenological analysis

Details $D_s$ decays to $η$ and $η^\prime$ final states: a phenomenological analysis $D_s$ decays to $η$ and $η^\prime$ final states: a phenomenological analysis

2001-07-12

arxiv.org/abs/hep-ph/0107137v2

Phys.Lett. B520 (2001) 78-86

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 15 pages, 3 eps figures. Some references added

Scientific paper

10.1016/S0370-2693(01)01112-1

We consider the semileptonic and nonleptonic $D_s$ decay modes to final states with $\eta$ and $\eta^\prime$. We use QCD sum rules to determine the $D_s \to \eta$ form factor $f_+^\eta$, and a generalized factorization ansatz to compute nonleptonic decays. We propose a parameterization of possible OZI suppressed contributions producing the $\eta^\prime$ in the final state, compatible with current data; such a scheme can be further constrained improving the precision of the measurement of the $D_s$ decay rates, as expected by the ongoing experiments.

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