TY  - EJOUR
AU  - Neill, Duff
AU  - Pathak, Aditya
AU  - Stewart, Iain
TI  - Small-x Factorization from Effective Field Theory
IS  - DESY-23-024
M1  - PUBDB-2023-00736
M1  - DESY-23-024
M1  - arXiv:2303.13710
M1  - MIT-CTP/5529
M1  - UWThPh 2023-3
PY  - 2023
N1  - 43 pgs
AB  - 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 W<sup>μν</sup> in deep inelastic scattering, and leads to the definition of a new gauge invariant soft function S<sup>μν</sup> 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.
KW  - invariance, gauge (INSPIRE)
KW  - factorization (INSPIRE)
KW  - deep inelastic scattering (INSPIRE)
KW  - collinear (INSPIRE)
KW  - effective field theory (INSPIRE)
KW  - resummation (INSPIRE)
KW  - quark (INSPIRE)
KW  - Glauber (INSPIRE)
KW  - gluon (INSPIRE)
KW  - Drell-Yan process (INSPIRE)
KW  - central region (INSPIRE)
LB  - PUB:(DE-HGF)25
DO  - DOI:10.3204/PUBDB-2023-00736
UR  - https://bib-pubdb1.desy.de/record/571009
ER  -