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Title: Neutron scattering from elemental indium, the optical model, and the bound-state potential

Abstract

Neutron differential elastic-scattering cross sections of elemental indium are measured from 4.5 to 10 MeV at incident-energy intervals of {approx}500 keV. Seventy or more differential values are obtained at each incident energy, distributed between {approx}18{degree} and 160{degree}. These experimental results are combined with lower-energy values previously obtained at this laboratory, and with 11 and 14 MeV results in the literature, to form a comprehensive elastic-scattering database extending from {approx}1.5 to 14 MeV. These data are interpreted in terms of a conventional spherical optical model. The resulting potential is extrapolated to the bound-state regime. It is shown that in the middle of the 50--82 neutron shell, the potential derived from the scattering results adequately describes the binding energies of article states, but does not do well for hole states. The latter shortcoming is attributed to the holes states having occupational probabilities sufficiently different from unity, so that the exclusion principle become a factor, and to the rearrangement of the neutron core. 68 refs.

Authors:
 [1]; ; ;  [2]
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)
  2. Argonne National Lab., IL (USA)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
DOE/ER
OSTI Identifier:
6746540
Report Number(s):
ANL/NDM-116
ON: DE90014222; TRN: 90-027776
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Related Information: Nuclear data and measurements series
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; INDIUM ISOTOPES; NEUTRON REACTIONS; BINDING ENERGY; BOUND STATE; CROSS SECTIONS; ELASTIC SCATTERING; MEV RANGE 01-10; MEV RANGE 10-100; NUCLEAR DATA COLLECTIONS; OPTICAL MODELS; BARYON REACTIONS; ENERGY; ENERGY RANGE; HADRON REACTIONS; ISOTOPES; MEV RANGE; NUCLEAR REACTIONS; NUCLEON REACTIONS; SCATTERING; 651720* - Nuclear Properties & Reactions, A=90-149, Experimental

Citation Formats

Chiba, S, Guenther, P T, Lawson, R D, and Smith, A B. Neutron scattering from elemental indium, the optical model, and the bound-state potential. United States: N. p., 1990. Web. doi:10.2172/6746540.
Chiba, S, Guenther, P T, Lawson, R D, & Smith, A B. Neutron scattering from elemental indium, the optical model, and the bound-state potential. United States. https://doi.org/10.2172/6746540
Chiba, S, Guenther, P T, Lawson, R D, and Smith, A B. 1990. "Neutron scattering from elemental indium, the optical model, and the bound-state potential". United States. https://doi.org/10.2172/6746540. https://www.osti.gov/servlets/purl/6746540.
@article{osti_6746540,
title = {Neutron scattering from elemental indium, the optical model, and the bound-state potential},
author = {Chiba, S and Guenther, P T and Lawson, R D and Smith, A B},
abstractNote = {Neutron differential elastic-scattering cross sections of elemental indium are measured from 4.5 to 10 MeV at incident-energy intervals of {approx}500 keV. Seventy or more differential values are obtained at each incident energy, distributed between {approx}18{degree} and 160{degree}. These experimental results are combined with lower-energy values previously obtained at this laboratory, and with 11 and 14 MeV results in the literature, to form a comprehensive elastic-scattering database extending from {approx}1.5 to 14 MeV. These data are interpreted in terms of a conventional spherical optical model. The resulting potential is extrapolated to the bound-state regime. It is shown that in the middle of the 50--82 neutron shell, the potential derived from the scattering results adequately describes the binding energies of article states, but does not do well for hole states. The latter shortcoming is attributed to the holes states having occupational probabilities sufficiently different from unity, so that the exclusion principle become a factor, and to the rearrangement of the neutron core. 68 refs.},
doi = {10.2172/6746540},
url = {https://www.osti.gov/biblio/6746540}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 1990},
month = {Fri Jun 01 00:00:00 EDT 1990}
}