Small-x factorization from effective field theory
- Author(s)
- Duff Neill, Aditya Pathak, Iain W. Stewart
- Abstract
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(s)
- Particle Physics
- External organisation(s)
- Los Alamos National Laboratory, Deutsches Elektronen-Synchrotron DESY, University of Manchester, Massachusetts Institute of Technology
- Journal
- Journal of High Energy Physics
- Volume
- 2023
- No. of pages
- 48
- ISSN
- 1029-8479
- DOI
- https://doi.org/10.48550/arXiv.2303.13710
- Publication date
- 09-2023
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103012 High energy physics, 103014 Nuclear physics
- Keywords
- ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/smallx-factorization-from-effective-field-theory(6cc2c85f-7a1d-405e-a4a8-1626998bb2de).html