Single Polarisation Asymmetries for Quarkonia in Non-relativistic QCD
High Energy Physics - Phenomenology
2016-08-25 v1
Abstract
We find that single spin asymmetries in NRQCD are non-vanishing in general. They are proportional to the imaginary parts of some non-perturbative matrix elements. With statistics of about 10^6 identified J/psi's, or 10^5 identified chi_2, it is possible to measure these imaginary parts even if they are an order of magnitude smaller than the real parts. Such statistics are quite reasonable at polarised HERA N and other future experiments.
Cite
@article{arxiv.hep-ph/9707315,
title = {Single Polarisation Asymmetries for Quarkonia in Non-relativistic QCD},
author = {Sourendu Gupta},
journal= {arXiv preprint arXiv:hep-ph/9707315},
year = {2016}
}
Comments
Plain LaTeX with one figure (ps)