4 papers
QCD factorization with multihadron fragmentation functions
T. C. Rogers, M. Radici, A. Courtoy +1
Important aspects of QCD factorization theorems are the properties of the objects involved that can be identified as universal. One example is that the definitions of parton densit…
Avenues for a number density interpretation of dihadron fragmentation functions
T. Rogers, A. Courtoy
In this comment, we reassess the underlying physics of the number sum rule for dihadron fragmentation functions. We will argue that, currently, there are no settled constraints on…
Phenomenology of TMD parton distributions in Drell-Yan and boson production in a hadron structure oriented approach
F. Aslan, M. Boglione, J. O. Gonzalez-Hernandez +3
We present a first practical implementation of a recently proposed hadron structure oriented (HSO) approach to TMD phenomenology applied to Drell-Yan like processes, including lept…
On the definition of fragmentation functions and the violation of sum rules
John Collins, Ted Rogers
We point out a problem with the formulation and derivations of sum rules for quark fragmentation functions that impacts their validity in QCD, but which potentially points toward a…