Polarized J/psi from chi_{cJ} and psi' Decays at the Tevatron
High Energy Physics - Phenomenology
2011-03-23 v1
Abstract
We calculate the partonic cross sections for the hadroproduction of polarized chi_{cJ} mesons using the factorization formalism of nonrelativistic QCD. We also describe how the polarization is passed on to the J/psi mesons in the radiative feed-down chi_{cJ} -> J/psi + gamma and in the double-cascade decays of psi' mesons via chi_{cJ} intermediate states. These represent the missing ingredients needed to predict the polarization of prompt J/psi mesons at the Fermilab Tevatron.
Keywords
Cite
@article{arxiv.hep-ph/0007292,
title = {Polarized J/psi from chi_{cJ} and psi' Decays at the Tevatron},
author = {Bernd A. Kniehl and Jungil Lee},
journal= {arXiv preprint arXiv:hep-ph/0007292},
year = {2011}
}
Comments
17 pages (Latex), 1 figure (Postscript)