Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: The role of the three-gluon correlator
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- AC05-06OR23177; AC52-06NA25396
- OSTI ID:
- 1245205
- Alternate ID(s):
- OSTI ID: 1418753
OSTI ID: 1234088
- Report Number(s):
- DOE/OR/23177--3175; JLAB-THY--14-1947; LA-UR--14-27352; arXiv:1409.5851
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 11 Vol. 92; ISSN PRVDAQ; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Next-to-leading order weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: three-gluon correlator
The gluon Sivers distribution: Status and future prospects
Conference
·
Tue Sep 01 00:00:00 EDT 2015
· Proceedings of Science
·
OSTI ID:1224702
The gluon Sivers distribution: Status and future prospects
Journal Article
·
Sat Jun 27 20:00:00 EDT 2015
· Advances in High Energy Physics
·
OSTI ID:1238331