NRQCD matrix elements in polarization of J-Psi produced from b-decay
High Energy Physics - Phenomenology
2009-10-28 v1 High Energy Physics - Experiment
Abstract
We present the non-relativistic QCD (NRQCD) prediction for the polarization of the J-Psi produced in b to J-Psi + X, as well as the helicity-summed production rate. We propose that these observables provide a means of measuring the three most important color-octet NRQCD matrix elements involved in J-Psi production. Anticipating the measurement of the polarization parameter alpha, we determine its expected range given current experimental bounds on the color-octet matrix elements.
Cite
@article{arxiv.hep-ph/9608413,
title = {NRQCD matrix elements in polarization of J-Psi produced from b-decay},
author = {Sean Fleming and Oscar F. Hernandez and Ivan Maksymyk and Helene Nadeau},
journal= {arXiv preprint arXiv:hep-ph/9608413},
year = {2009}
}
Comments
9 pages, Revtex, 2 figures