10 papers
A Ghost Story: Ghosts and Gluons in the IR regime of QCD
O. Pène, Ph. Boucaud, J. P. Leroy +3
We discuss the different methods to obtain reliable informations about the deep infra-red behaviour of the gluon and ghost Green functions in QCD. We argue that a clever combinatio…
Lattice measurement of the couplings g_infinity and g_Bstar_B_pi
A. Abada, D. Becirevic, Ph. Boucaud +4
We present the results of a quenched lattice QCD study of the coupling g_hat, in the static heavy quark limit. After combining this with our previous results obtained by using prop…
Heavy to light vector meson semileptonic decays
A. Abada, D. Becirevic, Ph. Boucaud +4
New (preliminary) results for the form factors relevant for the semileptonic decays of heavy pseudoscalar to a light vector meson are presented. In particular, we discuss the form…
Preliminary Calculation of from Green Functions with Dynamical Quarks
Ph. Boucaud, J. P. Leroy, H. Moutarde +4
We present preliminary results on the computation of the QCD running coupling constant in the scheme and Landau gauge with two flavours of dynamical Wilson quarks…
Heavy --> Light semileptonic decays of pseudoscalar mesons from lattice QCD
A. Abada, D. Becirevic, Ph. Boucaud +3
We have computed the form factors for B --> pi and D --> K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Ou…
Decays of Heavy Mesons
A. Abada, D. Becirevic, Ph. Boucaud +4
We present preliminary results for heavy to light transitions of pseudoscalar mesons, induced by the vector and tensor operators. This lattice study is performed in quenched approx…