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Excitation of non-normal parity states by inelastic proton scattering

Abstract

This is a review of the works done at the Indiana University Cyclotron Facility. The purposes of works are to find excitations that should have especially simple particle-hole structure in proton inelastic scattering, to use the data on these excitations to try to understand the mechanism and the effective interaction for the (p, p') reaction in this energy range, and to go on to study the nuclear structure involved in less simple excitation. As an example, the single-nucleon level diagram for the region of Si-28 is presented. A high spin state was made, and its spin-parity was 6/sup -/. It was tried to interpret the data in terms of a on-step distorted-wave impulse approximation. The optical model parameters derived from the extensive and precise elastic scattering results were used. The cross sections for the excitation of the 6/sup -/ states found in various reactions were not large. The T = 1 state is mainly excited by the direct tensor interaction, while the T = 0 state gets its strength mainly from the knock-on exchange contribution of both the tensor and spin-orbit interactions. Experiments on Pb-208 and Fe-54 are being performed.
Authors:
Emery, G. T.; [1]  Ikegami, Hidetsugu; Muraoka, Mitsuo [2] 
  1. Indiana Univ. (USA). Cyclotron Facility
  2. eds.; Osaka Univ., Suita (Japan). Research Center for Nuclear Physics
Publication Date:
Jan 01, 1980
Product Type:
Conference
Report Number:
CONF-800540-
Reference Number:
AIX-13-688455; EDB-83-045677
Resource Relation:
Conference: International symposium on highly excited states in nuclear reactions, Osaka, Japan, 12 May 1980; Related Information: In: Proceedings of 1980 RCNP international symposium on highly excited states in nuclear reactions.
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; IRON 54 TARGET; PROTON REACTIONS; LEAD 208 TARGET; INELASTIC SCATTERING; SILICON 28 TARGET; ANGULAR DISTRIBUTION; DIFFERENTIAL CROSS SECTIONS; ELASTIC SCATTERING; EXPERIMENTAL DATA; IRON 54; IU CYCLOTRON; PARITY; PARTICLE-HOLE MODEL; PROTON BEAMS; PROTON SPECTRA; REVIEWS; SILICON 28; ACCELERATORS; BARYON REACTIONS; BEAMS; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; CYCLIC ACCELERATORS; CYCLOTRONS; DATA; DISTRIBUTION; DOCUMENT TYPES; EVEN-EVEN NUCLEI; HADRON REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOCHRONOUS CYCLOTRONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEON BEAMS; NUCLEON REACTIONS; NUMERICAL DATA; PARTICLE BEAMS; PARTICLE PROPERTIES; SCATTERING; SILICON ISOTOPES; SPECTRA; STABLE ISOTOPES; TARGETS; 651425* - Nuclear Properties & Reactions, A=20-38, Experimental- Nuclear Reactions & Scattering- (-1987); 651525 - Nuclear Properties & Reactions, A=39-58, Experimental- Nuclear Reactions & Scattering- (-1987); 651925 - Nuclear Properties & Reactions, A=190-219, Experimental- Nuclear Reactions & Scattering- (-1987)
OSTI ID:
8424138
Country of Origin:
Japan
Language:
English
Submitting Site:
INIS
Size:
Pages: 267-289
Announcement Date:
Aug 01, 1982

Citation Formats

Emery, G. T., Ikegami, Hidetsugu, and Muraoka, Mitsuo. Excitation of non-normal parity states by inelastic proton scattering. Japan: N. p., 1980. Web.
Emery, G. T., Ikegami, Hidetsugu, & Muraoka, Mitsuo. Excitation of non-normal parity states by inelastic proton scattering. Japan.
Emery, G. T., Ikegami, Hidetsugu, and Muraoka, Mitsuo. 1980. "Excitation of non-normal parity states by inelastic proton scattering." Japan.
@misc{etde_8424138,
title = {Excitation of non-normal parity states by inelastic proton scattering}
author = {Emery, G. T., Ikegami, Hidetsugu, and Muraoka, Mitsuo}
abstractNote = {This is a review of the works done at the Indiana University Cyclotron Facility. The purposes of works are to find excitations that should have especially simple particle-hole structure in proton inelastic scattering, to use the data on these excitations to try to understand the mechanism and the effective interaction for the (p, p') reaction in this energy range, and to go on to study the nuclear structure involved in less simple excitation. As an example, the single-nucleon level diagram for the region of Si-28 is presented. A high spin state was made, and its spin-parity was 6/sup -/. It was tried to interpret the data in terms of a on-step distorted-wave impulse approximation. The optical model parameters derived from the extensive and precise elastic scattering results were used. The cross sections for the excitation of the 6/sup -/ states found in various reactions were not large. The T = 1 state is mainly excited by the direct tensor interaction, while the T = 0 state gets its strength mainly from the knock-on exchange contribution of both the tensor and spin-orbit interactions. Experiments on Pb-208 and Fe-54 are being performed.}
place = {Japan}
year = {1980}
month = {Jan}
}