B-physics from non-perturbatively renormalized HQET in two-flavour lattice QCD

Fabio Bernardoni, Benoit Blossier, John Bulava, Michele Della Morte, Patrick Fritzsch, Nicolas Garron, Antoine Gerardin, Jochen Heitger, Georg M. von Hippel, Hubert Simma

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on the ALPHA Collaboration's lattice B-physics programme based on N_f=2 O(a) improved Wilson fermions and HQET, including all NLO effects in the inverse heavy quark mass, as well as non-perturbative renormalization and matching, to fix the parameters of the effective theory. Our simulations in large physical volume cover 3 lattice spacings a ~ (0.08-0.05) fm and pion masses down to 190 MeV to control continuum and chiral extrapolations. We present the status of results for the b-quark mass and the B_(s)-meson decay constants, f_B and f_{B_s}.
Original languageUndefined/Unknown
JournalNuclear and Particle Physics Proceedings
ISSN2405-6014
DOIs
Publication statusPublished - 24. Oct 2012

Bibliographical note

Presented at the 16th International Conference in Quantum Chromodynamics (QCD 2012), 2-7 July 2012, Montpellier, France; 7 pages including figures, latex2e, uses elsarticle.cls

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