He→3(e→e′) quasielastic asymmetry
He→3(e→e′) quasielastic asymmetry
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Date
1993-01
Authors
Jones, C.E.
Beise, E.J.
Belz, J.E.
Carr, R.W.
Filippone, B.W.
Lorenzon, W.
McKeown, R.D.
Mueller, B.A.
O'Neill, T.G.
Dodson, G.W.
Advisor
Citation
Jones, C.E. et al. "He→3(e→e′) quasielastic asymmetry." Physical Review C 47, no. 1 (1993): 110-130.
DRUM DOI
Abstract
Measurements of the spin-dependent asymmetry in scattering longitudinally polarized electrons from polarized He3 at quasielastic kinematics are reported. The measurements were made at two kinematics and spin angles, one sensitive to the helicity-dependent transverse-longitudinal interference response function, RTL′, and the other to the helicity-dependent transverse response function, RT′. For the experiment a metastability exchange optically pumped polarized He3 target was used; a general discussion of the technique used to polarized the He3, along with the details of the design and operation of the target system, are presented here. A comparison is made of the world’s data on the He→3(e→,e′) quasielastic asymmetry with several theoretical predictions, including calculations that use the plane wave impulse approximation and a fully spin-dependent spectral function. There is good agreement between data and theory at the current level of experimental precision.