Determination of HQET parameter \lambda_1 from Inclusive Semileptonic B Meson Decay Spectrum
High Energy Physics - Phenomenology
2011-01-27 v2 High Energy Physics - Experiment
Nuclear Theory
Abstract
We estimate the heavy quark effective theory parameter \lambda_1 from inclusive semileptonic B-meson decay spectrum. By using recent CLEO double lepton tagging data of B -> X e nu, which shows the lepton momentum as low as 0.6 GeV, we extracted \lambda_1 \sim -0.58 GeV^2. We also derived \bar\Lambda \sim 0.46 GeV and |V_{cb}| = 0.041 \pm 0.002.
Cite
@article{arxiv.hep-ph/9811475,
title = {Determination of HQET parameter \lambda_1 from Inclusive Semileptonic B Meson Decay Spectrum},
author = {K. K. Jeong and C. S. Kim},
journal= {arXiv preprint arXiv:hep-ph/9811475},
year = {2011}
}
Comments
13 pages, 3 figures, LaTeX. Typos are corrected, and added one comment