The gluon Sivers asymmetry measurements at COMPASS

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The Sivers effect describes the correlation between the spin of the nucleon and the orbital motion of partons. For gluons it has been measured at COMPASS via J = Y production and via high- p T hadron pair production in Semi-Inclusive Deep Inelastic Scattering of a 160 GeV/ c muon beam off transverse...

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Detalles Bibliográficos
Autor principal: Szabelski, Adam
Lenguaje:eng
Publicado: SISSA 2016
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.22323/1.265.0219
http://cds.cern.ch/record/2286448
Descripción
Sumario:The Sivers effect describes the correlation between the spin of the nucleon and the orbital motion of partons. For gluons it has been measured at COMPASS via J = Y production and via high- p T hadron pair production in Semi-Inclusive Deep Inelastic Scattering of a 160 GeV/ c muon beam off transversely polarised proton and deuteron targets by determining the amplitude of the modulation of the Sivers angle f Siv distribution. Both the approach using J = Y channel and high- p T hadron pair selection will be described in detail and the results given.

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