2009/05/31 by Damir Becirevic, Damir Bečirević, B. Blossier +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph
paper · pdf · doi:10.1016/j.physletb.2009.07.031
published as Phys.Lett.B679:231-236,2009 · 7 pages, 3 figs (published version)
arxiv created 2009/07/21 · openalex publication_date 2009/07/22 · arxiv updated 2010/05/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
By means of QCD simulations on the lattice, we compute the coupling of the heavy–light mesons to a soft pion in the static heavy quark limit. The gauge field configurations used in this calculations include the effect of Nf=2 dynamical Wilson quarks, while for the static quark propagator we use its improved form (so-called HYP). On the basis of our results we obtain that the coupling gˆ=0.44±0.03−0.00+0.07, where the second error is flat (not Gaussian).