Spin Asymmetries on Nucleon Experiment at Jefferson Lab

Journal Article · Fri Oct 21 04:00:00 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1388; ISSN APCPCS; 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
ACCELERATORS
AMMONIA
ANGULAR MOMENTUM
ASYMMETRY
BARYONS
BEAMS
CEBAF ACCELERATOR
DATA ANALYSIS
DEEP INELASTIC SCATTERING
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FOUR MOMENTUM TRANSFER
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 KINEMATICS
PARTICLE PROPERTIES
PARTICLE STRUCTURE
POLARIZED BEAMS
POLARIZED TARGETS
PROTONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
REST MASS
SCATTERING
SPIN
SPIN ORIENTATION
STRUCTURE FUNCTIONS
TARGETS
TELESCOPE COUNTERS