Next-to-leading order weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: three-gluon correlator
Conference
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· Proceedings of Science
OSTI ID:1224702
- Indiana University , Bloomington, IN
- Jefferson Lab, Newport News, VA
- Los Alamos National Laboratory, Los Alamos, NM 87545
- Los Alamos National Laboratory, Los Alamos
We study the three-gluon correlation function contribution to the Sivers asymmetry in semi-inclusive deep inelastic scattering. We first establish the matching between the usual twist-3 collinear factorization approach and transverse momentum dependent factorization formalism for the moderate transverse momentum region. We then derive the so-called coefficient functions used in the usual TMD evolution formalism. Finally, we perform the next-to-leading order calculation for the transverse-momentum-weighted spin-dependent differential cross section, from which we identify the QCD collinear evolution of the twist-3 Qiu-Sterman function: the off-diagonal contribution from the three-gluon correlation functions.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- DOE Contract Number:
- AC05-06OR23177; AC52-06NA25396
- OSTI ID:
- 1224702
- Report Number(s):
- JLAB-THY-15-2137; DOE/OR/23177-3597
- Conference Information:
- Journal Name: Proceedings of Science Journal Volume: DIS2015
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Mon Dec 21 19:00:00 EST 2015
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
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OSTI ID:1245205