Ds decays to η and η′ final states:: a phenomenological analysis

被引：33

作者：

Colangelo, P ^{[1
]}

De Fazio, F ^{[1
]}

机构：

[1] Ist Nazl Fis Nucl, Sezione Bari, Bari, Italy

来源：

PHYSICS LETTERS B | 2001年 / 520卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(01)01112-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the semileptonic and nonleptonic D-s decay modes to final states with eta and eta ('). We use QCD sum rules to determine the D-s --> eta form factor f(+)(n), and a generalized factorization ansatz to compute nonleptonic decays. We propose a parameterization of possible OZI suppressed contributions producing the eta' in the final state, compatible vith current data;, such a scheme can be further constrained improving the precision of the measurement of the D, decay rates, as expected by the ongoing experiments. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：78 / 86

页数：9