Polarisation in deeply virtual meson production
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
We discuss two aspects of polarisation in hard exclusive meson production: the leading-twist selection rule for the meson helicity, and the different partial waves of a (pi pi)-pair which may or may not be due to the decay of a rho.
Cite
@article{arxiv.hep-ph/9909445,
title = {Polarisation in deeply virtual meson production},
author = {M. Diehl and T. Gousset and B. Pire},
journal= {arXiv preprint arXiv:hep-ph/9909445},
year = {2007}
}
Comments
9 pages, 1 figure. Talk given at the Workshop on Exclusive and Semiexclusive Processes at High Momentum Transfer, Jefferson Lab, May 1999. Remark added on the transition from two gluons to a pion pair