Transverse Target Spin asymmetries in exclusive ${\rho }^0$ muoproduction

Abstract

Generalized Parton Distributions (GPDs) provide a dynamical picture of the nucleon. The exclusive production of ${\rho }^0$ mesons on a transversely polarised target is sensitive to the nucleon helicity-flip GPDs $E$ which are related to the total angular momentum of quarks and gluons. In 2007 and 2010 the COMPASS experiment at CERN collected data by scattering a 160 GeV/c muon beam off a transversely polarised NH${}_3$ target. The final state particles were detected with the two-stage spectrometer with high resolution tracking. In this talk new results for the azimuthal asymmetries $A_{\text{UT}}$ and $A_{\text{LT}}$ are presented.

Conference: C13-04-22

References in corpus (2)

• Transversity in hard exclusive electroproduction of pseudoscalar mesons
• Exclusive rho^0 muoproduction on transversely polarised protons and deuterons