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Title: Theoretical aspects of inclusive scattering of 4.05 GeV electrons from nuclei

Abstract

We compare recent CEBAF data on inclusive electron scattering of 4.05 GeV electrons on nuclei with predictions, based on a relation between structure functions of a nucleus, a nucleon, and a nucleus of point nucleons. The latter contains nuclear dynamics, e.g., binary collision contributions in addition to the asymptotic limit. The agreement with data is good, except in low-intensity regions. Computed ternary collision contributions appear too small for an explanation. We perform scaling analyses in Gurvitz's scaling variable and find that for y{sub G} (gte/lte) 0, ratios of scaling functions for pairs of nuclei differ by less than 15-20% from 1. Scaling functions for y{sub G} less than 0 are, for increasing Q{sup 2}, shown to approach a plateau from above. We observe only weak Q{sup 2} dependence in final-state interactions (FSI), which in the relevant kinematic region is ascribed to the diffractive nature of NN amplitudes appearing in FSI. This renders it difficult to separate asymptotic from FSI parts and seriously hampers the extraction of n(p) from scaling analyses in a model-independent fashion.

Authors:
;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
804130
Report Number(s):
JLAB-THY-99-49; DOE/ER/40150-2345; nucl-th/9904028
TRN: US0300636
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 60; Journal Issue: 4; Other Information: PBD: 25 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; ELECTRONS; FINAL-STATE INTERACTIONS; NUCLEI; NUCLEONS; SCATTERING; STRUCTURE FUNCTIONS

Citation Formats

Avrahim Rinat, and M. F. Taragin. Theoretical aspects of inclusive scattering of 4.05 GeV electrons from nuclei. United States: N. p., 1999. Web.
Avrahim Rinat, & M. F. Taragin. Theoretical aspects of inclusive scattering of 4.05 GeV electrons from nuclei. United States.
Avrahim Rinat, and M. F. Taragin. Wed . "Theoretical aspects of inclusive scattering of 4.05 GeV electrons from nuclei". United States.
@article{osti_804130,
title = {Theoretical aspects of inclusive scattering of 4.05 GeV electrons from nuclei},
author = {Avrahim Rinat and M. F. Taragin},
abstractNote = {We compare recent CEBAF data on inclusive electron scattering of 4.05 GeV electrons on nuclei with predictions, based on a relation between structure functions of a nucleus, a nucleon, and a nucleus of point nucleons. The latter contains nuclear dynamics, e.g., binary collision contributions in addition to the asymptotic limit. The agreement with data is good, except in low-intensity regions. Computed ternary collision contributions appear too small for an explanation. We perform scaling analyses in Gurvitz's scaling variable and find that for y{sub G} (gte/lte) 0, ratios of scaling functions for pairs of nuclei differ by less than 15-20% from 1. Scaling functions for y{sub G} less than 0 are, for increasing Q{sup 2}, shown to approach a plateau from above. We observe only weak Q{sup 2} dependence in final-state interactions (FSI), which in the relevant kinematic region is ascribed to the diffractive nature of NN amplitudes appearing in FSI. This renders it difficult to separate asymptotic from FSI parts and seriously hampers the extraction of n(p) from scaling analyses in a model-independent fashion.},
doi = {},
journal = {Physical Review C},
number = 4,
volume = 60,
place = {United States},
year = {1999},
month = {8}
}