Exclusive ω meson production at COMPASS

Exclusive omega 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 quar...

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Detalles Bibliográficos
Autores principales: Nowak, Wolf-Dieter, Sznajder, Paweł
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201613005014
http://cds.cern.ch/record/2277669
Descripción
Sumario:Exclusive omega 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.

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