Semileptonic decays of charmed mesons in the effective action of QCD

被引：0

作者：

G. Amorós

S. Noguera

J. Portolés

机构：

[1] Departament de Física Teòrica,

[2] IFIC,undefined

[3] Universitat de València - CSIC,undefined

[4] Apt. Correus 22085,undefined

[5] 46071 València,undefined

[6] Spain ,undefined

[7] Departament de Física Teòrica,undefined

[8] Universitat de València,undefined

[9] C/ Dr. Moliner,undefined

[10] 50,undefined

[11] 46100 Burjassot (València),undefined

[12] Spain ,undefined

来源：

The European Physical Journal C - Particles and Fields | 2003年 / 27卷

关键词：

Experimental Data; Form Factor; Asymptotic Behavior; Effective Action; Semileptonic Decay;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Within the framework of phenomenological Lagrangians we construct the effective action of QCD relevant for the study of semileptonic decays of charmed mesons. Hence we evaluate the form factors of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$D \rightarrow P(0^-) \ell^+ \nu_{\ell}$\end{document} at leading order in the 1/NC expansion and, by demanding their QCD-ruled asymptotic behavior, we constrain the couplings of the Lagrangian. The features of the model-independent parameterization of form factors are provided, and their relevance for the analysis of experimental data are pointed out.

引用

页码：243 / 254

页数：11