Radiative transitions of D{sub sJ}*(2317) and D{sub sJ}(2460)
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari (Italy)
We study radiative decays of D{sub sJ}*(2317) and D{sub sJ}(2460) using light-cone QCD sum rules. In particular, we consider the decay modes D{sub sJ}*(2317){yields}D{sub s}*{gamma} and D{sub sJ}(2460){yields}D{sub s}{sup (}*{sup )}{gamma},D{sub sJ}*(2317){gamma} and evaluate the hadronic parameters in the transition amplitudes analyzing correlation functions of scalar, pseudoscalar, vector, and axial-vector cs currents. In the case of D{sub sJ}*(2317){yields}D{sub 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{sub sJ}(2460){yields}D{sub s}{gamma} turns out to have the largest decay rate among the radiative D{sub sJ}(2460) channels, as experimentally observed, a result thus favoring the interpretation of D{sub sJ} states as ordinary cs mesons.
- OSTI ID:
- 20713629
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 72, Issue 7; Other Information: DOI: 10.1103/PhysRevD.72.074004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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