JLab APS Centennial Presentations | |||||
A Precise Measurement of the Inclusive Quasi-Elastic Transverse Asymmetry in ^3\vecHe(\vece,e') at low Q^2 Session OB11 - Minisymposium on the Structure of the Nucleon II. ORAL session, Wednesday morning, March 24 Room 218E, GWCC Timothy Black (Massachusetts Institute of Technology)
Precise measurement of the transverse asymmetry A_T' in
^3\vecHe(\vece,e') as a function of the squared momentum
transfer Q^2 in the region of the quasi-elastic peak provides a
uniquely valuable means of extracting the neutron magnetic form factor
G^n_M and will impose constraints on recent calculations of the
^3He quasi-elastic asymmetry. Unlike the
transverse-longitudinal asymmetry A_TL', the transverse asymmetry
is not sensitive to details of the ^3He ground state wave
function. The relative model-independence of the quasi-elastic
A_T' measurement, in combination with the reduced systematic
uncertainty in the combined beam-target polarization afforded by our
simultaneous measurement of the elastic ^3He transverse
asymmetry, will permit us to extract the neutron magnetic form factor
to an accuracy of 2%. An experiment to measure the inclusive
quasi-elastic transverse asymmetry A_T' in ^3\vecHe(\vece,e') at low Q^2,
E95-001, is being conducted at
Jefferson Lab at the beginning of 1999.
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