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Publication Information
Title Collinear Factorization in Wide-Angle Hadron Pair Production in $e^+e^-$ Annihilation
Abstract We compute the inclusive unpolarized dihadron production cross section in the far from back-to-back region of $e^+ e^-$ annihilation in leading order pQCD using existing fragmentation function fits and standard collinear factorization, focusing on the large transverse momentum region where transverse momentum is comparable to the hard scale (the center-of-mass energy). We compare with standard transverse-momentum-dependent (TMD) fragmentation function-based predictions intended for the small transverse momentum region with the aim of testing the expectation that the two types of calculation roughly coincide at intermediate transverse momentum. We find significant tension, within the intermediate transverse momentum region, between calculations done with existing non-perturbative TMD fragmentation functions and collinear factorization calculations if the center-of-mass energy is not extremely large. We argue that $e^+ e^-$ measurements are ideal for resolving this tension and ex
Author(s) Ted Rogers, Nobuo Sato, Eric Moffat, Andrea Signori
Publication Date November 2019
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), DOE, Award Number DE-SC0018106., DOE, contract no. DE-AC02-06CH11357.
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-19-3020 OSTI Number: 1574290
LANL Number: arXiv:1909.02951 Other Number: DOE/OR/23177-4766
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 100
Issue
Page(s) 094014
Attachments/Datasets/DOI Link
Document(s)
SIA1.pdf (STI Document)
PhysRevD.100.094014.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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