A method to extract B-physics parameters (b-quark mass and f(B), f(Bs) decay constants) from currently available lattice data is presented and tested. The approach is based on the idea of constructing appropriate ratios of heavy-light meson masses and decay constants, respectively, possessing a precisely known static limit, and evaluating them at various pairs of heavy quark masses around the charm. Via a smooth interpolation in the heavy quark mass from the easily accessible charm region to the asymptotic point, B-physics parameters are computed with a few percent (statistical + systematic) error using recently produced N(f) - 2 maximally twisted Wilson fermions data.

A proposal for B-physics on current lattices / B., Blossier; Martinelli, Guido. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 2010:4(2010), pp. 49-72. [10.1007/jhep04(2010)049]

A proposal for B-physics on current lattices

MARTINELLI, Guido
2010

Abstract

A method to extract B-physics parameters (b-quark mass and f(B), f(Bs) decay constants) from currently available lattice data is presented and tested. The approach is based on the idea of constructing appropriate ratios of heavy-light meson masses and decay constants, respectively, possessing a precisely known static limit, and evaluating them at various pairs of heavy quark masses around the charm. Via a smooth interpolation in the heavy quark mass from the easily accessible charm region to the asymptotic point, B-physics parameters are computed with a few percent (statistical + systematic) error using recently produced N(f) - 2 maximally twisted Wilson fermions data.
2010
b-physics; heavy quark physics; lattice qcd; quark masses and sm parameters
01 Pubblicazione su rivista::01a Articolo in rivista
A proposal for B-physics on current lattices / B., Blossier; Martinelli, Guido. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 2010:4(2010), pp. 49-72. [10.1007/jhep04(2010)049]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/16270
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