TY - JOUR
T1 - Exclusive soft function for Drell-Yan at next-to-next-to-leading order
AU - Li, Ye
AU - Mantry, Sonny
AU - Petriello, Frank
PY - 2011/11/11
Y1 - 2011/11/11
N2 - We present next-to-next-to-leading-order (NNLO) results for an exclusive soft function that appears in a recently developed factorization theorem for transverse momentum distributions. The factorization theorem, derived using the Soft Collinear Effective Theory, involves both a soft function and unintegrated nucleon distribution functions fully differential in momentum coordinates. The soft function is given by the vacuum matrix element of soft Wilson lines and is also fully differential in all components. We give results and relevant technical details for the NNLO calculation of the soft function, including finite parts, and derive the corresponding anomalous dimension. These results are necessary for achieving low transverse momentum resummation at next-to-next-to-leading-logarithmic accuracy in this effective field theory approach with unintegrated distribution functions.
AB - We present next-to-next-to-leading-order (NNLO) results for an exclusive soft function that appears in a recently developed factorization theorem for transverse momentum distributions. The factorization theorem, derived using the Soft Collinear Effective Theory, involves both a soft function and unintegrated nucleon distribution functions fully differential in momentum coordinates. The soft function is given by the vacuum matrix element of soft Wilson lines and is also fully differential in all components. We give results and relevant technical details for the NNLO calculation of the soft function, including finite parts, and derive the corresponding anomalous dimension. These results are necessary for achieving low transverse momentum resummation at next-to-next-to-leading-logarithmic accuracy in this effective field theory approach with unintegrated distribution functions.
UR - http://www.scopus.com/inward/record.url?scp=82955217300&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=82955217300&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.84.094014
DO - 10.1103/PhysRevD.84.094014
M3 - Article
AN - SCOPUS:82955217300
SN - 1550-7998
VL - 84
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
M1 - 094014
ER -