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Title: New Study of Reaction Cross Sections and the Nucleon Density Distribution

Abstract

Reaction cross sections ({sigma}R) for 12C beam on 9Be, 12C, and 27Al targets and for 11Be beam on 9Be target were precisely measured systematically in the intermediate energy range. It is indicated that these all {sigma}R data were successfully reproduced by a modified Glauber calculation, which is expected to be applied for the determination of density distributions of other exotic nuclei.

Authors:
 [1];  [2]; ; ;  [3];  [4];  [5];  [6];  [7]; ; ; ;  [8]; ;  [9]; ; ;  [10]
  1. Dept. Phys., Osaka Univ., Toyonaka, Osaka 560-0043 (Japan)
  2. RCNP, Osaka Univ., Ibaraki, Osaka 567-0047 (Japan)
  3. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
  4. Fukui University of Technology, Fukui, 910-8505 (Japan)
  5. Department of Physics, Niigata University, Niigata 950-2102 (Japan)
  6. RI Center, Niigata Univeristy, Niigata 951-8510 (Japan)
  7. Kochi University of Technology, Kami, Kochi 782-8502 (Japan)
  8. Department of Physics, Saitama University, Saitama 338-3570 (Japan)
  9. RIKEN, Wako, Saitama 351-0106 (Japan)
  10. National Institute of Radiological Sciences, Chiba 263-8555 (Japan)
Publication Date:
OSTI Identifier:
21056737
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 891; Journal Issue: 1; Conference: 6. Symposium on nuclear physics, Tours (France), 5-8 Sep 2006; Other Information: DOI: 10.1063/1.2713515; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALUMINIUM 27 TARGET; BERYLLIUM 11 REACTIONS; BERYLLIUM 9 TARGET; CARBON 12 BEAMS; CARBON 12 REACTIONS; CARBON 12 TARGET; CROSS SECTIONS; DISTRIBUTION; GLAUBER THEORY; NEUTRON DENSITY; NUCLEAR MATTER; PROTON DENSITY

Citation Formats

Fukuda, M., Takechi, M., Mihara, M., Matsumiya, R., Matsuta, K., Minamisono, T., Ohtsubo, T., Izumikawa, T., Momota, S., Suzuki, T., Yamaguchi, T., Nakajima, S., Kobayashi, K., Tanaka, K., Suda, T., Sato, S., Kanazawa, M., and Kitagawa, A. New Study of Reaction Cross Sections and the Nucleon Density Distribution. United States: N. p., 2007. Web. doi:10.1063/1.2713515.
Fukuda, M., Takechi, M., Mihara, M., Matsumiya, R., Matsuta, K., Minamisono, T., Ohtsubo, T., Izumikawa, T., Momota, S., Suzuki, T., Yamaguchi, T., Nakajima, S., Kobayashi, K., Tanaka, K., Suda, T., Sato, S., Kanazawa, M., & Kitagawa, A. New Study of Reaction Cross Sections and the Nucleon Density Distribution. United States. doi:10.1063/1.2713515.
Fukuda, M., Takechi, M., Mihara, M., Matsumiya, R., Matsuta, K., Minamisono, T., Ohtsubo, T., Izumikawa, T., Momota, S., Suzuki, T., Yamaguchi, T., Nakajima, S., Kobayashi, K., Tanaka, K., Suda, T., Sato, S., Kanazawa, M., and Kitagawa, A. Mon . "New Study of Reaction Cross Sections and the Nucleon Density Distribution". United States. doi:10.1063/1.2713515.
@article{osti_21056737,
title = {New Study of Reaction Cross Sections and the Nucleon Density Distribution},
author = {Fukuda, M. and Takechi, M. and Mihara, M. and Matsumiya, R. and Matsuta, K. and Minamisono, T. and Ohtsubo, T. and Izumikawa, T. and Momota, S. and Suzuki, T. and Yamaguchi, T. and Nakajima, S. and Kobayashi, K. and Tanaka, K. and Suda, T. and Sato, S. and Kanazawa, M. and Kitagawa, A.},
abstractNote = {Reaction cross sections ({sigma}R) for 12C beam on 9Be, 12C, and 27Al targets and for 11Be beam on 9Be target were precisely measured systematically in the intermediate energy range. It is indicated that these all {sigma}R data were successfully reproduced by a modified Glauber calculation, which is expected to be applied for the determination of density distributions of other exotic nuclei.},
doi = {10.1063/1.2713515},
journal = {AIP Conference Proceedings},
number = 1,
volume = 891,
place = {United States},
year = {Mon Feb 26 00:00:00 EST 2007},
month = {Mon Feb 26 00:00:00 EST 2007}
}
  • Characteristic 4.44-MeV ..gamma.. rays from the first excited state of carbon were observed in coincidence with scattered 4.5-GeV/c ..pi../sup -/ mesons in counters and wire spark chambers. The ..gamma..-ray angular distribution in the momentum-transfer frame confirms the electric quadrupole nature of the transition and reveals the polarization of the recoiling /sup 12/C* nucleus so that density matrix elements can be determined. A simple model with no adjustable parameters, which employs the distorted-wave impulse approximation and uses electron scattering data to obtain the nuclear transition matrix elements, predicts the angular distribution of the pions and the polarization of the /sup 12/C*more » recoils very well. However, the absolute values of the measured cross sections are only half as large as the predicted ones. (AIP)« less
  • Scattering and reaction cross sections in the seven-nucleon system are calculated in a multiconfiguration resonating-group study which consists of t+/sup 4/He, n+/sup 6/Li, and n+/sup 6/Li/sup */ cluster configurations. The results show that the diffraction and interference features of the experimental angular distributions can be well explained, but that the calculated magnitudes of the differential cross sections are generally too large. In addition, it is found that the calculated total reaction cross sections for the t+/sup 4/He and n+/sup 6/Li channels are only 30--40 % of the measured values, indicating that, for a satisfactory explanation of all the important featuresmore » of the seven-nucleon system, more cluster configurations must still be incorporated into the resonating-group formulation.« less
  • Energy-dependent in-medium nucleon-nucleon ({ital NN}) cross sections are obtained from the experimental data of proton-induced reaction cross sections. Total reaction cross sections of the proton-nucleus reaction reflect only the magnitude of {ital NN} cross sections around the incident beam energy. Therefore energy-dependent in-medium {ital NN} cross sections can be determined by reproducing proton-induced reaction cross sections for various target nuclei. Calculations of the reaction cross section are made by using antisymmetrized molecular dynamics. {copyright} {ital 1996 The American Physical Society.}
  • We have measured ..cap alpha..+/sup 12/C total reaction cross sections (sigma/sub R/) at E/sub lab/ = 94 and 173 MeV/N using the attenuation method. Our data indicate a decreasing sigma/sub R/(E) at intermediate incident energies. These results, along with existing measurements, are in quantitative agreement with theoretical predictions for sigma/sub R/(E) which are based on nucleon-nucleon total cross sections.