Radiative transitions of D-sJ(*)(2317) and D-sJ(2460) - art. no. 072004

Colangelo P., De Fazio F., ÖZPİNECİ A.

PHYSICAL REVIEW D, vol.72, no.7, 2005 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 72 Issue: 7
  • Publication Date: 2005
  • Doi Number: 10.1103/physrevd.72.074004
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Middle East Technical University Affiliated: Yes

Abstract

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.