On the eta(b) => J/psi J/psi decay

Details On the eta(b) => J/psi J/psi decay On the eta(b) => J/psi J/psi decay

2007-12-21

arxiv.org/abs/0712.3745v1

AIPConf.Proc.964:132-136,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 5 pages, 2 figures. Contributed to QCD @ Work 2007: International Workshop on Quantum Chromodynamics Theory and Experim

Scientific paper

10.1063/1.2823838

It has been argued long ago that eta(b) could be observed through the eta(b) => J/psi(=> mu+ mu-) J/psi(=> mu+ mu-) decay chain. Recent calculations indicate that the width of eta(b) into two J/psi is almost three order of magnitude smaller than the one into the D D*. We study the effects of final state interactions due to the D D* intermediate state on the J/psi J/psi final state. We find that the inclusion of this contribution may enhance the short distance branching ratio of about two orders of magnitude.

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