Small-x factorization from effective field theory

Autor(en)
Duff Neill, Aditya Pathak, Iain W. Stewart
Abstrakt

We derive a factorization theorem that allows for resummation of small-x logarithms by exploiting Glauber operators in the soft collinear effective field theory. Our analysis is carried out for the hadronic tensor Wμν in deep inelastic scattering, and leads to the definition of a new gauge invariant soft function Sμν that describes quark and gluon emission in the central region. This soft function provides a new framework for extending resummed calculations for coefficient functions to higher logarithmic orders. Our factorization also defines impact factors by universal collinear functions that are process independent, for instance being identical in small-x DIS and Drell-Yan.

Organisation(en)
Teilchenphysik
Externe Organisation(en)
Los Alamos National Laboratory, Deutsches Elektronen-Synchrotron DESY, University of Manchester, Massachusetts Institute of Technology
Journal
Journal of High Energy Physics
Band
2023
Anzahl der Seiten
48
ISSN
1029-8479
DOI
https://doi.org/10.48550/arXiv.2303.13710
Publikationsdatum
09-2023
Peer-reviewed
Ja
ÖFOS 2012
103012 Hochenergiephysik, 103014 Kernphysik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/smallx-factorization-from-effective-field-theory(6cc2c85f-7a1d-405e-a4a8-1626998bb2de).html