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arXiv · 1505.07750

Mixing of $\eta - \eta'$ in charge-exchange reactions and decays of mesons with heavy quarks

J. V. Balitsky·V. V. Kiselev·A. K. Likhoded·V. D. Samoylenko
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Abstract

Involving of elastic rescattering and annihilation of quark-antiquark pairs in a final state allows us to explain a dependence of ratio for cross sections of $\eta'$ and $\eta$ mesons versus transfer momentum in charge exchange reactions. We estimate the mixing angle of mesons with isoscalar states of $\bar u u+\bar d d$ and $\bar s s$ of hidden strangeness. The evaluation includes the consistent description of yield ratio for $\eta'$ and $\eta$ mesons in decays of $B^0$, $B^0_s$ and $J/\psi$ mesons.

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J. V. Balitsky, V. V. Kiselev, A. K. Likhoded, V. D. Samoylenko. 2015-05-27. Mixing of $\eta - \eta'$ in charge-exchange reactions and decays of mesons with heavy quarks. https://doi.org/10.1142/s0217751x16501062

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