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

Citation
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
Citations number
35
Categorie Soggetti
Physics, Nuclear
ISSN journal
05562813
Volume
53
Issue
2
Year of publication
1996
Pages
576 - 587
Database
ISI
SICI code
0556-2813(1996)53:2<576:QDODAF>2.0.ZU;2-D
Abstract
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.