Exclusive ω meson production at COMPASS
1 Johannes Gutenberg University, Mainz, Germany
2 National Centre for Nuclear Research, Warsaw, Poland
* e-mail: email@example.com
** 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
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