Cross section for double charmonium production in electron-positron annihilation at energy $\sqrt{s}$= 10.6 GeV

Details Cross section for double charmonium production in electron-positron annihilation at energy $\sqrt{s}$= 10.6 GeV Cross section for double charmonium production in electron-positron annihilation at energy $\sqrt{s}$= 10.6 GeV

2011-05-25

arxiv.org/abs/1105.4944v2

Intl. J. Mod. Phys. E20, 2521-2533 (2011)

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:0912.3081

Scientific paper

10.1142/S0218301311030017

In this work we study the process $e^{+}+e^{-}\longrightarrow J/\Psi+\eta_{c} $ at energy $\sqrt{s}= 10.6 GeV$ observed recently at B-factories whose measurements were made by Babar and Belle groups. We calculate the cross section for this process in the Bethe-salpeter formalism under Covariant Instantaneous Anstaz (CIA). To simplify our calculation, the heavy quark approximation $(q<

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