BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Abha Rajan\, University of Virginia\n\n
\n The spin of the pr oton is a source of great mystery: how do the spins and other angular mome ntum of gluons and quarks add up to the spin of the proton? The so called '\;spin puzzle'\; came up because the measurement of the valence qua rks spin (EMC experiment at CERN\, 1987) was found to be way smaller than the expected 0.5 (spin of the proton). My research focusses on the theory describing the component of angular momentum generated by motion of quarks and gluons (partons). This includes working with different types of distr ibution functions such as the regular Parton Distribution Functions\, Gene ralised Parton Distribution Functions and Transverse Momentum Distribution s. In my talk\, I will highlight how we describe partonic angular momentum using these distributions and how we approach the problem of measuring it experimentally.
\n DTSTART:20141124T203000Z LOCATION:Physics Building\, Room 204 SUMMARY:What makes the proton spin? END:VEVENT END:VCALENDAR