skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Strong absorption radii from reaction cross section measurements for neutron-rich nuclei

Abstract

Energy-integrated reaction cross sections have been measured at energies ranging from 38 to 80 MeV/nucleon for various exotic neutron-rich isotopes of Al, Si, P, S, Cl, Ar, K, Ca, Sc, and Ti stopping in Si. An experimental technique is employed where Si detectors are used for both particle identification and to serve as the target material. The reduced strong absorption radii r[sub 0][sup 2] are deduced and compared with other experimental results. The radius dependence on the neutron number was studied and a trend of increasing reduced radius with neutron excess was found. This behavior is similar to that seen in lighter systems, although less pronounced than found there. The implications of this result on the conjectured existence of neutron halo or skin nuclei is discussed. [copyright] [ital 1999] [ital The American Physical Society]

Authors:
; ; ; ; ; ;  [1]; ; ; ; ; ;  [2]; ;  [3];  [4];  [5];  [6];  [7]
  1. (Departamento de Fisica Nuclear, Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970 Sao Paulo, Sao Paulo (Brazil))
  2. (National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States))
  3. (Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States))
  4. (Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859 (United States))
  5. (Japan Synchrotron Radiation Research Institute (JASRI), Spring-8, Kamigori, Hyogo 678-12 (Japan))
  6. (Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 (United States))
  7. (Department of Physics and Astronomy, Universit
Publication Date:
OSTI Identifier:
6470156
Alternate Identifier(s):
OSTI ID: 6470156
Resource Type:
Journal Article
Journal Name:
Physical Review, C
Additional Journal Information:
Journal Volume: 60:3; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALUMINIUM ISOTOPES; ARGON ISOTOPES; CALCIUM ISOTOPES; CHLORINE ISOTOPES; CROSS SECTIONS; NEUTRON-RICH ISOTOPES; NUCLEAR HALOS; PHOSPHORUS ISOTOPES; POTASSIUM ISOTOPES; RADIOACTIVE ION BEAMS; SCANDIUM ISOTOPES; SILICON ISOTOPES; SULFUR ISOTOPES; TITANIUM ISOTOPES; ALKALINE EARTH ISOTOPES; BEAMS; ION BEAMS; ISOTOPES; RADIOISOTOPES 663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)

Citation Formats

Aissaoui, N., Added, N., Carlin, N., de Moura, M.M., Suaide, A.A., Szanto, E.M., Szanto de Toledo, A., Crawley, G.M., Danczyk, S., Morrissey, D.J., Stasko, J., Steiner, M., Thoennessen, M., Crawley, G.M., Thoennessen, M., Finck, J., Hirata, D., Morrissey, D.J., and Sanders, S.J. Strong absorption radii from reaction cross section measurements for neutron-rich nuclei. United States: N. p., 1999. Web. doi:10.1103/PhysRevC.60.034614.
Aissaoui, N., Added, N., Carlin, N., de Moura, M.M., Suaide, A.A., Szanto, E.M., Szanto de Toledo, A., Crawley, G.M., Danczyk, S., Morrissey, D.J., Stasko, J., Steiner, M., Thoennessen, M., Crawley, G.M., Thoennessen, M., Finck, J., Hirata, D., Morrissey, D.J., & Sanders, S.J. Strong absorption radii from reaction cross section measurements for neutron-rich nuclei. United States. doi:10.1103/PhysRevC.60.034614.
Aissaoui, N., Added, N., Carlin, N., de Moura, M.M., Suaide, A.A., Szanto, E.M., Szanto de Toledo, A., Crawley, G.M., Danczyk, S., Morrissey, D.J., Stasko, J., Steiner, M., Thoennessen, M., Crawley, G.M., Thoennessen, M., Finck, J., Hirata, D., Morrissey, D.J., and Sanders, S.J. Wed . "Strong absorption radii from reaction cross section measurements for neutron-rich nuclei". United States. doi:10.1103/PhysRevC.60.034614.
@article{osti_6470156,
title = {Strong absorption radii from reaction cross section measurements for neutron-rich nuclei},
author = {Aissaoui, N. and Added, N. and Carlin, N. and de Moura, M.M. and Suaide, A.A. and Szanto, E.M. and Szanto de Toledo, A. and Crawley, G.M. and Danczyk, S. and Morrissey, D.J. and Stasko, J. and Steiner, M. and Thoennessen, M. and Crawley, G.M. and Thoennessen, M. and Finck, J. and Hirata, D. and Morrissey, D.J. and Sanders, S.J.},
abstractNote = {Energy-integrated reaction cross sections have been measured at energies ranging from 38 to 80 MeV/nucleon for various exotic neutron-rich isotopes of Al, Si, P, S, Cl, Ar, K, Ca, Sc, and Ti stopping in Si. An experimental technique is employed where Si detectors are used for both particle identification and to serve as the target material. The reduced strong absorption radii r[sub 0][sup 2] are deduced and compared with other experimental results. The radius dependence on the neutron number was studied and a trend of increasing reduced radius with neutron excess was found. This behavior is similar to that seen in lighter systems, although less pronounced than found there. The implications of this result on the conjectured existence of neutron halo or skin nuclei is discussed. [copyright] [ital 1999] [ital The American Physical Society]},
doi = {10.1103/PhysRevC.60.034614},
journal = {Physical Review, C},
issn = {0556-2813},
number = ,
volume = 60:3,
place = {United States},
year = {1999},
month = {9}
}