QUADRUPOLE DEFORMATION OF DEUTERONS AND FINAL-STATE INTERACTION IN (2)(H)OVER-RIGHT-ARROW(E,E'P) SCATTERING ON TENSOR-POLARIZED DEUTERONS AT GEV ENERGIES
A. Bianconi et al., QUADRUPOLE DEFORMATION OF DEUTERONS AND FINAL-STATE INTERACTION IN (2)(H)OVER-RIGHT-ARROW(E,E'P) SCATTERING ON TENSOR-POLARIZED DEUTERONS AT GEV ENERGIES, Physical review. C. Nuclear physics, 53(2), 1996, pp. 576-587
The strength of final-state interaction (FSI) between struck proton an
d spectator neutron in (2) (H) over right arrow(e,e'p) scattering depe
nds on the alignment of the deuteron. In the framework of the Glauber
theory of FSI, which is relevant at GeV energies of the struck proton,
we study the resulting FSI effects in the tensor analyzing power in d
etail and find substantial FSI effects starting at still low missing m
omentum p(m) greater than or similar to 0.9 fm(-1). At larger p(m) gre
ater than or similar to 1.5 fm(-1), FSI completely dominates both miss
ing momentum distribution and tensor analyzing power. We find that to
a large extent FSI masks the sensitivity of the tensor analyzing power
to models of the deuteron wave function. For the transversely polariz
ed deuterons the FSI induced forward-backward asymmetry of the missing
momentum distribution is shown to have a node at precisely the same v
alue of p(m) as the plane-wave impulse approximation missing momentum
distribution. The position of this node is not affected by FSI and can
be a tool to distinguish experimentally between different models for
the deuteron wave function.