ar X iv : h ep - p h / 99 06 47 4 v 1 2 4 Ju n 19 99 AS - ITP - 99 - 21 The Mass Effect in Quarkonium Decay
نویسنده
چکیده
In the NRQCD factorization for productions and decays of a quakonium the difference between the quarkonium mass and the twice of the heavy quark mass is neglected. We attempt to interpret the difference in term of NRQCD matrix elements, and consider the effect introduced by the difference in quarkonium decays. The effect is significant in these decays. Similar effect in decays of heavy-flavor hadrons is briefly discussed.
منابع مشابه
ar X iv : h ep - p h / 99 06 47 4 v 2 2 9 Se p 19 99 The Mass Effect in Quarkonium Decay
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Introduction
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تاریخ انتشار 1999