The First Measurement of Neutron Transversity on a Transversely Polarized 3He Target

Conference · Tue Dec 01 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293945· OSTI ID:985395

Qiang, Yi

We recently measured the neutron target single spin asymmetry in the semi-inclusive deep inelastic 3He (e,e',pi+/-)X reactions with a transversely polarized 3He target. The experiment was performed in Hall A at Jefferson Lab from October 2008 to February 2009. Pions were detected in the high-resolution spectrometer in coincidence with scattered electrons detected by the BigBite spectrometer. The kinematic coverage focuses on the valence quark region, x = 0.1 - 0.4, at Q2 = 1-3 (GeV/c)2. With good particle identifications using a RICH detector and an aerogel Cherenkov counter, data on kaons were obtained at the same time. The data from this experiment, when combined with the world data, will provide constraints on the Transversity and Sivers distributions on both u-quark and d-quark in the valence quark region.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 985395
• Report Number(s): JLAB-PHY-09-925; DOE/OR/23177-0892
• Conference Information: Journal Name: AIP Conference Proceedings Journal Volume: 1182
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CHERENKOV COUNTERS
ELECTRONS
KAONS
NEUTRONS
NUCLEAR PHYSICS
PARTICLE IDENTIFICATION
PIONS
QUARKS
SPECTROMETERS
SPIN
TARGETS
VALENCE