Density distributions in the $B$ meson
Résumé
We report on a two-flavor lattice QCD study of the axial, charge, and matter distributions of the B meson and its first radial excitation. As our framework is the static limit of heavy quark effective theory (HQET), taking their Fourier transform gives access to several form factors at the kinematical point q2=0 while our previous computations in that framework were performed at qmax2. Moreover, they provide some useful information on the nature of an excited state, i.e., a radial excitation of a quark-antiquark bound state or a multihadron state.
Mots clés
bottom meson
quark antiquark: bound state
excited state
Heavy Quark Effective Theory
density: spatial distribution
charge distribution
charge: axial
matter: distribution function
pi: coupling
quantum chromodynamics: lattice
quark: Wilson
fermion: clover
quark: flavor: 2
form factor
kinematics
finite size: effect