[Theory-seminars] Theory Seminar - Apr. 23 1:00pm - Simonetta Liuti

[Andrea Signori]

Theory Seminar
Monday, April 23
1:00pm - CEBAF Center, Room L102

Simonetta Liuti (UVA)
Orbital angular momentum, Wandzura-Wilczek relations, and generalized transverse momentum distributions

The link to attend remotely via BlueJeans is available at https://www.jlab.org/div_dept/theory/seminars/2018-spring-theory-seminar.html  
Looking forward to seeing you on Monday,

    Alessandro, Andrea, Bipasha

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Abstract:

Wandzura-Wilczek relations allow us to access the color forces among quarks and gluons from off-forward scattering processes. I will present an analysis of the parton transverse momentum substructure of these processes involving Generalized Parton Distributions (GPDs). I will focus, in particular, on three helicity configurations that can be detected analyzing specific spin asymmetries: two correspond to longitudinal proton polarization and are associated with quark orbital angular momentum and spin-orbit correlations; the third, obtained for transverse proton polarization, is a generalization of the relation obeyed by the g2 structure function from inclusive polarized scattering. An additional relation connecting the off-forward extension of the Sivers function to an off-forward quark-gluon-quark term, known as the Qiu-Sterman term, will also be discussed.
-- 
Postdoctoral researcher 
Theory Center - Jefferson Lab 
12000 Jefferson Avenue,  
Newport News, VA 23606 USA 
CEBAF center, office A211
Tel: +1 (757) 269-6735






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