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Title Collinear Factorization at sub-asymptotic kinematics and validation in a diquark spectator model
Abstract We revisit the derivation of collinear factorization for Deep Inelastic Scattering at sub-asymptotic values of the four momentum transfer squared, where the masses of the particles participating in the interaction cannot be neglected. By using an inclusive jet function to describe the scattered quark final state, we can restrict the needed parton kinematic approximations just to the overall four-momentum conservation of the hard scattering process, and explicitly expand the rest of the diagram in powers of the unobserved parton transverse momenta rather than neglecting those. This procedure provides one with more flexibility in fixing the virtuality of the scattered and recoiling partons, and naturally leads to scaling variables that more faithfully represent the partonic kinematic at sub-asymptotic energy than Bjorken's xB variable. We verify the validity of the obtained factorization formula by considering a diquark spectator model designed to reproduce the main features of electr
Author(s) Juan Guerrero, Alberto Accardi
Publication Date December 2022
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-20-3254 OSTI Number: 1907418
LANL Number: arXiv:2010.07339 Other Number: DOE/OR/23177-5043
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physical Review D
Refereed Yes
Volume 106
Issue
Page(s) 114016
Attachments/Datasets/DOI Link
Document(s)
PhysRevD.106.114016.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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