https://doi.org/10.1051/epjconf/201613005014
Exclusive ω meson production at COMPASS
1 Johannes Gutenberg University, Mainz, Germany
2 National Centre for Nuclear Research, Warsaw, Poland
* e-mail: wolf-dieter.nowak@cern.ch
** Supported by the Polish NCN Grant DEC-2011/01/M/ST2/02350.
Published online: 29 November 2016
Exclusive ω meson production is studied by the COMPASS Collaboration using the CERN 160 GeV/c muon beam and a transversely polarised proton target. Single-spin and double-spin asymmetries are measured, some of which are sensitive to the Generalised Parton Distributions E that are related to quark orbital angular momenta. The results, which are sensitive also to the pion-pole contribution to the production mechanism, are compared to the predictions of a phenomenological model.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
