English

J/psi D*D* vertex from QCD sum rules

High Energy Physics - Phenomenology 2009-11-10 v2
Authors: M. E. Bracco , M. Chiapparini , M. Nielsen , F. S. Navarra
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Abstract

We calculated the strong form factor and coupling constant for the J/ψD∗D∗J/\psi D^* D^* vertex in a QCD sum rule calculation. We performed a double Borel sum rule for the three point correlation function of vertex considering both J/ψJ/\psi and D∗D^* mesons off--shell. The form factors obtained are very different, but they give the same coupling constant.

Keywords

qcd sum rules

Cite

@article{arxiv.hep-ph/0410071,
  title  = {J/psi D*D* vertex from QCD sum rules},
  author = {M. E. Bracco and M. Chiapparini and M. Nielsen and F. S. Navarra},
  journal= {arXiv preprint arXiv:hep-ph/0410071},
  year   = {2009}
}

Comments

7 pages and 4 figures, replaced version accepted for publication in Phys. Lett. B

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