Sivers function in the quasiclassical approximation
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
- The Ohio State Univ., Columbus, OH (United States); The Ohio State University
- The Ohio State Univ., Columbus, OH (United States)
In this study, we calculate the Sivers function in semi-inclusive deep inelastic scattering (SIDIS) and in the Drell-Yan process (DY) by employing the quasiclassical Glauber-Mueller/McLerran-Venugopalan approximation. Modeling the hadron as a large “nucleus” with nonzero orbital angular momentum (OAM), we find that its Sivers function receives two dominant contributions: one contribution is due to the OAM, while another one is due to the local Sivers function density in the nucleus. While the latter mechanism, being due to the “lensing” interactions, dominates at large transverse momentum of the produced hadron in SIDIS or of the dilepton pair in DY, the former (OAM) mechanism is leading in saturation power counting and dominates when the above transverse momenta become of the order of the saturation scale. We show that the OAM channel allows for a particularly simple and intuitive interpretation of the celebrated sign flip between the Sivers functions in SIDIS and DY.
- Research Organization:
- The Ohio State Univ., Columbus, OH (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- SC0004286
- OSTI ID:
- 1604453
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 5 Vol. 89; ISSN PRVDAQ; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Helicity evolution at small x
|
journal | January 2016 |
Helicity-dependent generalization of the JIMWLK evolution
|
journal | December 2019 |
JIMWLK evolution of the odderon
|
journal | September 2016 |
Sivers Function in the Quasi-Classical Approximation
|
journal | January 2015 |
| Helicity-dependent generalization of the JIMWLK evolution | text | January 2019 |
Similar Records
TMD's in Drell-Yan Processes
Deeply Virtual Pseudoscalar Meson Production at Jefferson Lab and Transversity GPDs
Studying the Sivers and Boer-Mulders function with Lattice QCD
Journal Article
·
Mon Mar 23 00:00:00 EDT 2009
· AIP Conference Proceedings
·
OSTI ID:21293452
Deeply Virtual Pseudoscalar Meson Production at Jefferson Lab and Transversity GPDs
Conference
·
Sun Jan 31 23:00:00 EST 2016
· Int. J. Mod. Phys. Conf. Ser.
·
OSTI ID:1242483
Studying the Sivers and Boer-Mulders function with Lattice QCD
Conference
·
Tue Nov 01 00:00:00 EDT 2011
· Few-Body Systems,
·
OSTI ID:1040694