Determination of the b-quark mass and nonperturbative parameters in semileptonic and radiative penguin decays at BABAR

TL;DR

This paper reports preliminary measurements of the b-quark mass and nonperturbative parameters using moments of kinematic distributions in various B meson decays, including the first measurement in charmless semileptonic decays, based on BABAR data.

Contribution

It introduces the first measurement of the b-quark mass from charmless semileptonic B decays and provides new insights into nonperturbative parameters using BABAR data.

Findings

First measurement of b-quark mass from charmless semileptonic decays

Determination of nonperturbative parameters in B decays

Results based on data from the BABAR detector

Abstract

Knowing the mass of the b-quark is essential to the study of the structure and decays of B mesons as well as to future tests of the Higgs mechanism of mass generation. We present recent preliminary measurements of the b-quark mass and related nonperturbative parameters from moments of kinematic distributions in charmed and charmless semileptonic and radiative penguin B decays. Their determination from charmless semileptonic B decays is the first measurement in this mode. The data were collected by the BABAR detector at the PEP-II asymmetric-energy e+e- -collider at the Stanford Linear Accelerator Center at a center-of-momentum energy of 10.58 GeV.