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Title: Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator

Abstract

Here, we study the Sivers asymmetry in semi-inclusive hadron production in deep inelastic scattering. We concentrate on the contribution from the photon-gluon fusion channel at O(α em 2α s), where three-gluon correlation functions play a major role within the twist-3 collinear factorization formalism. We establish the correspondence between such a formalism with three-gluon correlation functions and the usual transverse momentum-dependent (TMD) factorization formalism at moderate hadron transverse momenta. We derive the coefficient functions used in the usual TMD evolution formalism related to the quark Sivers function expansion in terms of the three-gluon correlation functions. We further perform the next-to-leading order calculation for the transverse momentum-weighted spin-dependent differential cross section and identify the off-diagonal contribution from the three-gluon correlation functions to the QCD collinear evolution of the twist-3 Qiu-Sterman function.

Authors:
 [1];  [2];  [1];  [2]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1418753
Alternate Identifier(s):
OSTI ID: 1234088; OSTI ID: 1245205
Report Number(s):
LA-UR-14-27352; JLAB-THY-14-1947; DOE/OR/23177-3175; arXiv:1409.5851
Journal ID: ISSN 1550-7998; PRVDAQ; TRN: US1801293
Grant/Contract Number:  
AC05-06OR23177; AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 92; Journal Issue: 11; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics

Citation Formats

Dai, Ling-Yun, Kang, Zhong-Bo, Prokudin, Alexei, and Vitev, Ivan. Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.92.114024.
Dai, Ling-Yun, Kang, Zhong-Bo, Prokudin, Alexei, & Vitev, Ivan. Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator. United States. https://doi.org/10.1103/PhysRevD.92.114024
Dai, Ling-Yun, Kang, Zhong-Bo, Prokudin, Alexei, and Vitev, Ivan. Tue . "Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator". United States. https://doi.org/10.1103/PhysRevD.92.114024. https://www.osti.gov/servlets/purl/1418753.
@article{osti_1418753,
title = {Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator},
author = {Dai, Ling-Yun and Kang, Zhong-Bo and Prokudin, Alexei and Vitev, Ivan},
abstractNote = {Here, we study the Sivers asymmetry in semi-inclusive hadron production in deep inelastic scattering. We concentrate on the contribution from the photon-gluon fusion channel at O(αem2αs), where three-gluon correlation functions play a major role within the twist-3 collinear factorization formalism. We establish the correspondence between such a formalism with three-gluon correlation functions and the usual transverse momentum-dependent (TMD) factorization formalism at moderate hadron transverse momenta. We derive the coefficient functions used in the usual TMD evolution formalism related to the quark Sivers function expansion in terms of the three-gluon correlation functions. We further perform the next-to-leading order calculation for the transverse momentum-weighted spin-dependent differential cross section and identify the off-diagonal contribution from the three-gluon correlation functions to the QCD collinear evolution of the twist-3 Qiu-Sterman function.},
doi = {10.1103/PhysRevD.92.114024},
url = {https://www.osti.gov/biblio/1418753}, journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
issn = {1550-7998},
number = 11,
volume = 92,
place = {United States},
year = {2015},
month = {12}
}

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Cited by: 5 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Transverse spin observables in hard-scattering hadronic processes within collinear factorization
    journal, November 2016


    Transverse spin observables in hard-scattering hadronic processes within collinear factorization
    journal, November 2016


    Double-longitudinal spin asymmetry in single-inclusive lepton scattering at NLO
    journal, July 2017


    A Short Review on Recent Developments in TMD Factorization and Implementation
    journal, May 2019


    Introduction to the Transverse-Momentum-Weighted Technique in the Twist-3 Collinear Factorization Approach
    journal, June 2019