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Title: Neutron magnetic form factor G{sub M}{sup n}(Q{sup 2}) from quasielastic inclusive scattering data on D and {sup 4}He

Abstract

We analyze cross sections for quasielastic inclusive scattering of electrons on nuclei and show that the observed isolated peaks for relatively low Q{sup 2} are unique for the lightest targets. Focusing, in particular, on D and {sup 4}He, we investigate in two ways to what measure the above peaks can be allocated to nucleon-elastic processes. We first compute approximate upper limits for the nucleon-inelastic background in the quasielastic region due to inclusive {delta} excitation, and find those to be small. Far more precise is a semiphenomenological approach, where the dominance of nucleon-elastic processes is translated into a set of stringent requirements. We show that those are very well fulfilled for recent D data, and to a somewhat lesser extent for older D and {sup 4}He data. With knowledge of G{sub E,M}{sup p} and information on G{sub E}{sup n}, we then extract G{sub M}{sup n} and find agreement with values obtained by alternative methods. We discuss the sensitivity of the extraction method and mention future applications.

Authors:
; ;  [1]
  1. Weizmann Institute of Science, Department of Particle Physics, Rehovot 76100 (Israel)
Publication Date:
OSTI Identifier:
20695573
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 70; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.70.014003; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CROSS SECTIONS; DEUTERIUM TARGET; ELECTROMAGNETIC FORM FACTORS; ELECTRON REACTIONS; ELECTRONS; EXCITATION; HELIUM 4; HELIUM 4 TARGET; MAGNETIC FORMING; NEUTRONS; QUASI-ELASTIC SCATTERING

Citation Formats

Rinat, A S, Taragin, M F, Viviani, M, and INFN, Sezione Pisa and Physics Department, University of Pisa, Pisa I-56100. Neutron magnetic form factor G{sub M}{sup n}(Q{sup 2}) from quasielastic inclusive scattering data on D and {sup 4}He. United States: N. p., 2004. Web. doi:10.1103/PhysRevC.70.014003.
Rinat, A S, Taragin, M F, Viviani, M, & INFN, Sezione Pisa and Physics Department, University of Pisa, Pisa I-56100. Neutron magnetic form factor G{sub M}{sup n}(Q{sup 2}) from quasielastic inclusive scattering data on D and {sup 4}He. United States. https://doi.org/10.1103/PhysRevC.70.014003
Rinat, A S, Taragin, M F, Viviani, M, and INFN, Sezione Pisa and Physics Department, University of Pisa, Pisa I-56100. 2004. "Neutron magnetic form factor G{sub M}{sup n}(Q{sup 2}) from quasielastic inclusive scattering data on D and {sup 4}He". United States. https://doi.org/10.1103/PhysRevC.70.014003.
@article{osti_20695573,
title = {Neutron magnetic form factor G{sub M}{sup n}(Q{sup 2}) from quasielastic inclusive scattering data on D and {sup 4}He},
author = {Rinat, A S and Taragin, M F and Viviani, M and INFN, Sezione Pisa and Physics Department, University of Pisa, Pisa I-56100},
abstractNote = {We analyze cross sections for quasielastic inclusive scattering of electrons on nuclei and show that the observed isolated peaks for relatively low Q{sup 2} are unique for the lightest targets. Focusing, in particular, on D and {sup 4}He, we investigate in two ways to what measure the above peaks can be allocated to nucleon-elastic processes. We first compute approximate upper limits for the nucleon-inelastic background in the quasielastic region due to inclusive {delta} excitation, and find those to be small. Far more precise is a semiphenomenological approach, where the dominance of nucleon-elastic processes is translated into a set of stringent requirements. We show that those are very well fulfilled for recent D data, and to a somewhat lesser extent for older D and {sup 4}He data. With knowledge of G{sub E,M}{sup p} and information on G{sub E}{sup n}, we then extract G{sub M}{sup n} and find agreement with values obtained by alternative methods. We discuss the sensitivity of the extraction method and mention future applications.},
doi = {10.1103/PhysRevC.70.014003},
url = {https://www.osti.gov/biblio/20695573}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 70,
place = {United States},
year = {Thu Jul 01 00:00:00 EDT 2004},
month = {Thu Jul 01 00:00:00 EDT 2004}
}