Renormalization, Wilson lines, and transverse-momentum-dependent parton-distribution functions
Renormalization, Wilson lines, and transverse-momentum-dependent parton-distribution functions
We perform an analysis of transverse-momentum dependent parton-distribution functions, making use of their renormalization properties in terms of their leading-order anomalous dimensions. We show that the appropriate Wilson line in the light cone gauge, associated with such quantities, is a cusped one at light cone infinity. To cancel the ensuing …