Single spin asymmetries in charged kaon production from semi-inclusive deep inelastic scattering on a transversely polarized target
We report the first measurement of target single spin asymmetries of charged kaons produced in semi-inclusive deep inelastic scattering of electrons off a transversely polarized 3He target. Both the Collins and Sivers moments, which are related to the nucleon transversity and Sivers distributions, respectively, are extracted over the kinematic range of 0.1 < xbj<0.4 for K+ and K– production. While the Collins and Sivers moments for K+ are consistent with zero within the experimental uncertainties, both moments for K– favor negative values. The Sivers moments are compared to the theoretical prediction from a phenomenological fit to the world data. While the K+ Sivers moments are consistent with the prediction, the K– results differ from the prediction at the 2-sigma level.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Mississippi State Univ., Mississippi State, MS (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Organization:
- Jefferson Lab Hall A Collaboration
- Grant/Contract Number:
- AC05-06OR23177; FG02-07ER41528
- OSTI ID:
- 1163189
- Alternate ID(s):
- OSTI ID: 1180723; OSTI ID: 1599862
- Report Number(s):
- JLAB-PHY-14-1894; DOE/OR/23177-3105; arXiv:1404.7204; PRVCAN; ArticleNumber: 055201
- Journal Information:
- Physical Review C, Nuclear Physics, Vol. 90, Issue 5; ISSN 0556-2813
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
The spin structure of the nucleon
|
journal | June 2019 |
$$J/\psi $$ J / ψ production in polarized and unpolarized ep collision and Sivers and $$\cos 2\phi $$ cos 2 ϕ asymmetries
|
journal | December 2017 |
The spin structure of the nucleon
|
journal | January 2005 |
The spin structure of the nucleon
|
journal | January 1994 |
The Spin Structure of the Nucleon: Proceeding of International School of Nucleon Structure: 1st Course
|
conference | April 2017 |
Similar Records
Double spin asymmetries of inclusive hadron electroproduction from a transversely polarized target
Measurement of the Target-Normal Single-Spin Asymmetry in Deep-Inelastic Scattering from the Reaction