J/psi Spin Asymmetries in the Colour-Octet Model
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
We investigate the pattern of asymmetries in the colour-octet model for inclusive production of charmonium with polarised initial state hadrons and photons. We find that singly polarised asymmetries vanish. The double polarised asymmetry for J/psi involves a new combination of long-distance matrix element. We also investigate the asymmetries for eta_c, chi_c and Upsilon production. The asymmetries distinguish well between different models of charmonium production.
Keywords
Cite
@article{arxiv.hep-ph/9609504,
title = {J/psi Spin Asymmetries in the Colour-Octet Model},
author = {Sourendu Gupta and Prakash Mathews},
journal= {arXiv preprint arXiv:hep-ph/9609504},
year = {2009}
}
Comments
LaTeX source, 18 pages