B Physics From NRQCD With Dynamical Fermions

TL;DR

This paper reports preliminary lattice QCD results for B meson spectra and decay constants using NRQCD with dynamical fermions, including corrections up to order 1/M_Q.

Contribution

It introduces a calculation of B meson properties with dynamical fermions incorporating all terms up to order 1/M_Q in NRQCD.

Findings

Preliminary results for B meson spectrum and decay constants.

Inclusion of all 1/M_Q terms improves accuracy.

Use of dynamical staggered fermions enhances realism.

Abstract

We present {\it preliminary} results for the spectrum and decay constants of B mesons using NRQCD heavy and Wilson light quarks on configurations at $\beta=5.6$ with two dynamical flavours of staggered fermions. All terms to order $1/M_Q$ are included in the NRQCD action; matrix elements are corrected to this order by calculating the small components of the heavy quark propagator.