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Single/Double-Spin Asymmetry Measurements of Semi-Inclusive Pion Electroproduction on a Transversely Polarized ^3He Target through Deep Inelastic Scattering

Qian, Xin (2012) Single/Double-Spin Asymmetry Measurements of Semi-Inclusive Pion Electroproduction on a Transversely Polarized ^3He Target through Deep Inelastic Scattering. , Pasadena, CA. (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20120625-082312297

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Abstract

Parton distribution functions, which represent the flavor and spin structure of the nucleon, provide invaluable information in illuminating quantum chromodynamics in the confinement region. Among various processes that measure such parton distribution functions, semi-inclusive deep inelastic scattering is regarded as one of the golden channels to access transverse momentum dependent parton distribution functions, which provide a 3-D view of the nucleon structure in momentum space. The Jefferson Lab ex- periment E06-010 focuses on measuring the target single and double spin asymmetries in the ^3He(e, e′π+,−)X reaction with a transversely polarized ^3He target in Hall A with a 5.89 GeV electron beam. A leading pion and the scattered electron are detected in coincidence by the left High-Resolution Spectrometer at 16◦ and the BigBite spectrom- eter at 30° beam right, respectively. The kinematic coverage concentrates in the valence quark region, x ∼0.1-0.4, at Q^2 ∼ 1-3 GeV^2. The Collins and Sivers asymmetries of ^3He and neutron are extracted. In this review, an overview of the experiment and the final results are presented. Furthermore, an upcoming 12-GeV program with a large acceptance solenoidal device and the future possibilities at an electron-ion collider are discussed.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/arXiv:1206.1575arXivUNSPECIFIED
Additional Information:© 2012 World Scientific Publishing Company. This work was supported in part by Caltech, U.S. Department of Energy (DOE) under contract number DE-FG02-03ER41231, the National Science Foundation, and by DOE contract number DE-AC05-06OR23177, under which the Jefferson Science Associates (JSA) operates the Thomas Jefferson National Accelerator Facility.
Funders:
Funding AgencyGrant Number
CaltechUNSPECIFIED
Department of Energy (DOE)DE-FG02-03ER41231
NSFUNSPECIFIED
Department of Energy (DOE)DE-AC05-06OR23177
Subject Keywords:SIDIS; SSA; TMDs; Nucleon Spin Structure; PDF
Record Number:CaltechAUTHORS:20120625-082312297
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120625-082312297
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32053
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Jul 2012 23:39
Last Modified:26 Dec 2012 15:22

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