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Title: Spin-dependent quark beam function at NNLO

Abstract

We calculate the beam function for longitudinally polarized quarks through next-to-next-to-leading order (NNLO) in QCD perturbation theory. This is the last missing ingredient needed to apply the factorization theorem for the N-jettiness event-shape variable in a variety of polarized collisions through the NNLO level. We present all technical details of our derivation. As a by-product of our calculation we provide the first independent check of the previously obtained unpolarized quark beam function. We anticipate that our result will have phenomenological applications in describing data from polarized collisions.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of High Energy Physics; National Science Foundation (NSF)
OSTI Identifier:
1395278
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D; Journal Volume: 96; Journal Issue: 3
Country of Publication:
United States
Language:
English

Citation Formats

Boughezal, Radja, Petriello, Frank, Schubert, Ulrich, and Xing, Hongxi. Spin-dependent quark beam function at NNLO. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.96.034001.
Boughezal, Radja, Petriello, Frank, Schubert, Ulrich, & Xing, Hongxi. Spin-dependent quark beam function at NNLO. United States. doi:10.1103/PhysRevD.96.034001.
Boughezal, Radja, Petriello, Frank, Schubert, Ulrich, and Xing, Hongxi. Tue . "Spin-dependent quark beam function at NNLO". United States. doi:10.1103/PhysRevD.96.034001.
@article{osti_1395278,
title = {Spin-dependent quark beam function at NNLO},
author = {Boughezal, Radja and Petriello, Frank and Schubert, Ulrich and Xing, Hongxi},
abstractNote = {We calculate the beam function for longitudinally polarized quarks through next-to-next-to-leading order (NNLO) in QCD perturbation theory. This is the last missing ingredient needed to apply the factorization theorem for the N-jettiness event-shape variable in a variety of polarized collisions through the NNLO level. We present all technical details of our derivation. As a by-product of our calculation we provide the first independent check of the previously obtained unpolarized quark beam function. We anticipate that our result will have phenomenological applications in describing data from polarized collisions.},
doi = {10.1103/PhysRevD.96.034001},
journal = {Physical Review D},
number = 3,
volume = 96,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 2017},
month = {Tue Aug 01 00:00:00 EDT 2017}
}