A lattice QCD calculation of the transverse decay constant of the b1(1235) meson
K. Jansen, C. McNeile, C. Michael, C. Urbach (for the ETM, Collaboration)
TL;DR
This paper presents an exploratory lattice QCD calculation of the transverse decay constant of the b1(1235) meson, providing essential input for understanding B meson decays involving this meson.
Contribution
It introduces a lattice QCD approach to compute the transverse decay constant of the b1(1235) meson using unquenched configurations and twisted mass formalism.
Findings
First lattice QCD estimate of the b1 transverse decay constant.
Uses unquenched gauge configurations at two lattice spacings.
Employs twisted mass formalism for calculations.
Abstract
We review various B meson decays that require knowledge of the transverse decay constant of the b1(1235) meson. We report on an exploratory lattice QCD calculation of the transverse decay constant of the b1 meson. The lattice QCD calculations used unquenched gauge configurations, at two lattice spacings, generated with two flavours of sea quarks. The twisted mass formalism is used.
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