Semileptonic Dq→K1•ν and nonleptonic D→K1π decays in three-point QCD sum rules and factorization approach

被引：21

作者：

Khosravi, R. ^{[1
]}

Azizi, K. ^{[2
]}

Ghahramany, N. ^{[1
]}

机构：

[1] Shiraz Univ, Dept Phys, Shiraz 71454, Iran

[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 03期

关键词：

HEAVY; MATRIX; PI;

D O I：

10.1103/PhysRevD.79.036004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the semileptonic D-q -> K-1 center dot nu transition with q=u, d, s, in the framework of the three-point QCD sum rules and the nonleptonic D -> K-1 pi decay within the QCD factorization approach. We study D-q to K-1(1270) and K-1(1400) transition form factors by separating the mixture of the K-1(1270) and K-1(1400) states. Using the transition form factors of the D -> K-1, we analyze the nonleptonic D -> K-1 pi decay. We also present the decay amplitude and decay width of these decays in terms of the transition form factors. The branching ratios of these channel modes are also calculated at different values of the mixing angle theta(K1) and compared with the existing experimental data for the nonleptonic case.

引用

页数：15

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