Lattice renormalization ofO(a)improved heavy-light operators

Benoît Blossier
2007 Physical Review D  
The analytical expressions and the numerical values of the renormalisation constants of O(a) improved static-light currents are given at one-loop order of perturbation theory in the framework of Heavy Quark Effective Theory: the static quark is described by the HYP action and the light quark is described either with the Clover or the Neuberger action. These factors are relevant to extract from a lattice computation the decay constants f_B, f_B_S and the set of bag parameters B_i associated with
more » ... B-B̅ mixing phenomenology in the Standard Model and beyond.
doi:10.1103/physrevd.76.114513 fatcat:3xtzvdmhx5e3lmpdt2pil74kea