Radiative transitions of $D^*_{sJ}(2317)$ and $D_{sJ}(2460)$

Details Radiative transitions of $D^*_{sJ}(2317)$ and $D_{sJ}(2460)$ Radiative transitions of $D^*_{sJ}(2317)$ and $D_{sJ}(2460)$

2005-05-23

arxiv.org/abs/hep-ph/0505195v1

Phys.Rev.D72:074004,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex, 23 pages, 9 eps figures

Scientific paper

10.1103/PhysRevD.72.074004

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)\to D_s^* \gamma $ and $D_{sJ}(2460)\to D_s^{(*)} \gamma, D^*_{sJ}(2317) \gamma$ and evaluate the hadronic parameters in the transition amplitudes analyzing correlation functions of scalar, pseudoscalar, vector and axial-vector quark currents. In the case of $D^*_{sJ}(2317)\to D_s^* \gamma $ we also consider determinations based on two different correlation functions in HQET. The decay widths turn out to be different than previous estimates obtained by other methods; the results favour the interpretation of $D^*_{sJ}(2317)$ and $D_{sJ}(2460)$ as ordinary $\bar c s$ mesons.

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