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Title: The extraction of the spin structure function, g2 (and g1) at low Bjorken x

The Spin Asymmetries of the Nucleon Experiment (SANE) used the Continuous Electron Beam Accelerator Facility at Jefferson Laboratory in Newport News, VA to investigate the spin structure of the proton. The experiment measured inclusive double polarization electron asymmetries using a polarized electron beam, scattered off a solid polarized ammonia target with target polarization aligned longitudinal and near transverse to the electron beam, allowing the extraction of the spin asymmetries A1 and A2, and spin structure functions g1 and g2. Polarized electrons of energies of 4.7 and 5.9 GeV were used. The scattered electrons were detected by a novel, non-magnetic array of detectors observing a four-momentum transfer range of 2.5 to 6.5 GeV*V. This document addresses the extraction of the spin asymmetries and spin structure functions, with a focus on spin structure function, g2 (and g1) at low Bjorken x. The spin structure functions were measured as a function of x and W in four Q square bins. A full understanding of the low x region is necessary to get clean results for SANE and extend our understanding of the kinematic region at low x.
Authors:
 [1]
  1. Mississippi State Univ., Mississippi State, MS (United States)
Publication Date:
OSTI Identifier:
1190866
Report Number(s):
JLAB-PHY--15-2063; DOE/OR/23177--3458
TRN: US1601296
DOE Contract Number:
AC05-06OR23177
Resource Type:
Thesis/Dissertation
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; STRUCTURE FUNCTIONS; PROTONS; ELECTRON BEAMS; POLARIZED BEAMS; POLARIZED TARGETS; SPIN; ELECTRONS; GEV RANGE 01-10; AMMONIA; ASYMMETRY; FOUR MOMENTUM TRANSFER; POLARIZATION; SOLIDS