Isospin breaking in scalar and pseudoscalar channels of radiative $J/ψ$-decays

Details Isospin breaking in scalar and pseudoscalar channels of radiative $J/ψ$-decays Isospin breaking in scalar and pseudoscalar channels of radiative $J/ψ$-decays

2007-02-06

arxiv.org/abs/hep-ph/0702062v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, revtex4 class, 2 eps-figures; reference, comment and acknowledgement added

Scientific paper

10.1134/S1063778808110136

In the framework of simple assumption on factorizing a mixing of vector state
with isoscalar components in effective amplitudes of isospin breaking caused by
the electromagnetic quark current, a branching fraction of radiative $J/\psi\to
a_0$ transition is evaluated at the level of $3\cdot 10^{-3}$.

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