English

Coupling constants of $D^*D_sK$ and $D_s^*DK$ processes

High Energy Physics - Phenomenology 2011-08-04 v2
Authors: M. E. Bracco , A. Lozea , A. Cerqueira , M. Chiapparini , M. Nielsen
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Abstract

We calculate the coupling constants of D∗DsKD^*D_sK and Ds∗DKD_s^*DK vertices using the QCD sum rules technique. We compare results obtained in the limit of SU(4) symmetry and found that the symmetry is broken on the order of 40%.

Keywords

coupling constants QCD sum rules D^*D_sK vertex D_s^*DK vertex SU(4) symmetry

Cite

@article{arxiv.hep-ph/0611217,
  title  = {Coupling constants of $D^*D_sK$ and $D_s^*DK$ processes},
  author = {M. E. Bracco and A. Lozea and A. Cerqueira and M. Chiapparini and M. Nielsen},
  journal= {arXiv preprint arXiv:hep-ph/0611217},
  year   = {2011}
}

Comments

4 pages, 3 ps figures. Talk presented in the 18 Workshop on Hadron Interactions, IFUSP, Sao Paulo, Brazil, may 22-24 of 2006

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