Περίληψη:
The first measurements of f(LT)’ known as the fifth response function,
have been made for the H-2((e) over right arrow, e’p) and C-12((3) over
right arrow, e’p) reactions. This response is directly related to the
imaginary part of the interference between the transverse and
longitudinal nuclear electromagnetic currents. Its observation requires
longitudinally polarized electron beams and out-of-plane detection, the
latter made possible by the newly developed out-of-plane spectrometer
system. The initial measurements were made by using a 560-MeV polarized
electron beam and quasielastic kinematics at Q(2) = 3.3 fm(-2). The
development of the methodology for out-of-plane physics, and the
analysis of the data from the initial experiments are described in
detail. The measured fifth response and the related asymmetry in the
coincidence cross section are in agreement, albeit with large
statistical errors, with the theoretical predictions. Future extensions
of the out-of-plane program are also discussed.
[S0556-2813(99)02812-5].
Συγγραφείς:
Dolfini, SM
Alarcon, RO
Arenhovel, H
Beck, R
Bernstein,
AM
Bertozzi, W
Boeglin, W
Boffi, S
Comfort, JR
Dale,
D
Dodson, G
Dow, K
Epstein, MB
Farkhondeh, M
Gilad,
S
Gorgen, J
Holtrop, M
Jordan, D
Kim, W
Kowalski, S
and Laszewski, R
Mandeville, J
Margaziotis, DJ
Martinez, D
and McIlvain, T
Miskimen, R
Papanicolas, C
Radici, M and
Tieger, D
Turchinetz, W
Vellidis, CE
Weinstein, L and
Williamson, S
