Spin Asymmetries on Nucleon Experiment at Jefferson Lab

Journal Article · Fri Oct 21 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647435· OSTI ID:21611961

Choi, Seonho ^[1]

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1. Department of Physics, Seoul National University, Seoul 151-747 (Korea, Republic of)

The Spin Asymmetries of the Nucleon Experiment (SANE) of Jefferson Lab is a comprehensive measurement of double spin asymmetries of the proton for both parallel and almost perpendicular spin configurations of the proton spin and the electron beam polarization directions. The experiment will provide both spin structure functions, g{sub 2} and g{sub 1} and spin observable A{sub 2} and A{sub 1} of the proton over Q{sup 2} region from 2.5 to 6.5 GeV{sup 2}/c{sup 2} and Bjorken x region of 0.3 to 0.8. Using the polarized electron beam of Thomas Jefferson National Accelerator Facility and the polarized frozen NH{sub 3} target, the data were taken early 2009 in Hall C of Jefferson Lab. Scattered electrons from the inclusive reaction were detected by the Big Electron Telescope Array (BETA), a new non-magnetic detector with a large acceptance of 194 msr. The current analysis effort is focused on the proton spin structure functions g{sub 2} and g{sub 1}. Physics motivations with the experimental methods will be presented with an overview of the current status of the data analysis.

• OSTI ID: 21611961
• Journal Information: AIP Conference Proceedings, Vol. 1388, Issue 1; Conference: BARYONS' 10: International conference on the structure of baryons, Osaka (Japan), 7-11 Dec 2010; Other Information: DOI: 10.1063/1.3647435; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMMONIA
ASYMMETRY
CEBAF ACCELERATOR
DATA ANALYSIS
DEEP INELASTIC SCATTERING
ELECTRONS
FOUR MOMENTUM TRANSFER
PARTICLE KINEMATICS
PARTICLE STRUCTURE
POLARIZED BEAMS
POLARIZED TARGETS
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QUANTUM CHROMODYNAMICS
QUARKS
REST MASS
SPIN
SPIN ORIENTATION
STRUCTURE FUNCTIONS
TELESCOPE COUNTERS
ACCELERATORS
ANGULAR MOMENTUM
BARYONS
BEAMS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
HYDRIDES
HYDROGEN COMPOUNDS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTONS
LINEAR ACCELERATORS
MASS
MOMENTUM TRANSFER
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUCLEONS
ORIENTATION
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
SCATTERING
TARGETS