TMDs, universality and factorization
Umberto D'Alesio (Dipartimento di Fisica, Universita' di Cagliari, and, INFN, Sezione di Cagliari, Cittadella Universitaria, Monserrato (CA), Italy)
TL;DR
This paper provides an overview of transverse momentum dependent parton distribution and fragmentation functions, discussing their interpretation, access methods, and the critical issues of universality and factorization in perturbative QCD.
Contribution
It offers a concise review of TMD functions, clarifying their interpretation and exploring the universality and factorization challenges in QCD.
Findings
Clarifies the partonic interpretation of TMD functions
Discusses methods to access TMD functions experimentally
Analyzes the connection between universality and factorization in QCD
Abstract
We present a short overview on transverse momentum dependent parton distribution and fragmentation functions, giving their partonic interpretation and ways to access them. We then discuss the issue of their universality and its connection to factorization in perturbative QCD.
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