A lattice estimate of the g_{D^* D pi} coupling

A. Abada; D. Becirevic; Ph. Boucaud; G. Herdoiza; J. P. Leroy; A. Le Yaouanc; O. Pene; J. Rodriguez-Quintero

doi:10.1016/S0920-5632(03)01611-6

A lattice estimate of the g_{D^* D pi} coupling

High Energy Physics - Lattice 2010-03-19 v1 High Energy Physics - Phenomenology

Authors: A. Abada , D. Becirevic , Ph. Boucaud , G. Herdoiza , J. P. Leroy , A. Le Yaouanc , O. Pene , J. Rodriguez-Quintero

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Abstract

We present the results of the first direct determination of the g_{D^* D pi} coupling using lattice QCD. From our simulations in the quenched approximation, we obtain g_{D^* D pi} = 18.8 +/- 2.3^{+1.1}_{-2.0} and hat(g) = 0.67 +/- 0.08^{+0.04}_{-0.06}. It is in agreement with a recent experimental result from CLEO.

Keywords

g_{D^* D pi} coupling lattice QCD quenched approximation heavy-light mesons CLEO

Cite

@article{arxiv.hep-lat/0209092,
  title  = {A lattice estimate of the g_{D^* D pi} coupling},
  author = {A. Abada and D. Becirevic and Ph. Boucaud and G. Herdoiza and J. P. Leroy and A. Le Yaouanc and O. Pene and J. Rodriguez-Quintero},
  journal= {arXiv preprint arXiv:hep-lat/0209092},
  year   = {2010}
}

Comments

Lattice2002(heavyquark), 3 pages, 3 figures

A lattice estimate of the g_{D^* D pi} coupling

Abstract

Keywords

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