QCD sum rules analysis of the rare B_{c}rightarrow Xnubar{nu} decays期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

QCD sum rules analysis of the rare B_{c}rightarrow Xnubar{nu} decays

Authors:	K. Azizi R. Khosravi V. Bashiry

Affiliation:	(1) Department of Physics, Middle East Technical University, 06531 Ankara, Turkey;(2) Physics Department, Shiraz University, Shiraz, 71454, Iran;(3) Department of Electrical and Electronics, Cyprus International University, Haspolat-Lefkosa, north Cyprus, via Mersin 10, Turkey

Abstract:	Taking into account the gluon correction contributions to the correlation function, the form factors relevant to the rare $B_{c}rightarrow Xnubar{nu}$ decays are calculated in the framework of the three-point QCD sum rules, where X stands for axial vector particle, AV(D _s1), and vector particles, V(D ^,D _s^). The total decay width as well as the branching ratio of these decays are evaluated using the q ² dependent expressions of the form factors. A comparison of our results with the predictions of the relativistic constituent quark model is presented.

Keywords:	PACS 11.55.Hx 13.20.He
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