Radiative transitions of DsJ*(2317) and DsJ(2460) -: art. no. 072004

被引:106
作者
Colangelo, P [1 ]
De Fazio, F [1 ]
Ozpineci, A [1 ]
机构
[1] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy
来源
PHYSICAL REVIEW D | 2005年 / 72卷 / 07期
关键词
D O I
10.1103/PhysRevD.72.074004
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study radiative decays of D-sJ(*)(2317) and D-sJ(2460) using light-cone QCD sum rules. In particular, we consider the decay modes D-sJ(*)(2317)-> D-s(*)gamma and D-sJ(2460)-> D-s((*))gamma,D-sJ(*)(2317)gamma and evaluate the hadronic parameters in the transition amplitudes analyzing correlation functions of scalar, pseudoscalar, vector, and axial-vector (c) over bars currents. In the case of D-sJ(*)(2317)-> D-s(*)gamma we also consider determinations based on two different correlation functions in heavy quark effective theory (HQET), in order to estimate the finite charm-quark mass effects. The mode D-sJ(2460)-> D-s gamma turns out to have the largest decay rate among the radiative D-sJ(2460) channels, as experimentally observed, a result thus favoring the interpretation of D-sJ states as ordinary (c) over bars mesons.
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页数:11
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