Υ(1s)-->γ(η',η) decays

Details Υ(1s)-->γ(η',η) decays Υ(1s)-->γ(η',η) decays

2007-12-27

arxiv.org/abs/0712.4246v1

Phys.Rev.D77:097502,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1103/PhysRevD.77.097502

The decays of $\Upsilon(1s)\to\gamma(\eta',\eta)$ are studied by an approach which has successfully predicted the ratio $\frac{\Gamma(J/\psi\to\gamma\eta')}{\Gamma(J/\psi\to\gamma\eta)}$. Strong dependence on quark mass has been found in the decays $(J/\psi, \Upsilon(1s))\to\gamma(\eta',\eta)$. Very small decay rates of $\Upsilon(1s)\to\gamma(\eta',\eta)$ are predicted.

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