Interaction cross sections for neon isotopes in the Glauber model and the halo structure of Ne31

Deeksha Chauhan, Z. A. Khan, and A. A. Usmani
Phys. Rev. C 90, 024603 – Published 7 August 2014

Abstract

In this work we calculate the interaction cross sections of neon isotopes (1732Ne) on 12C at 240 and 950 MeV/nucleon within the framework of the Coulomb-modified correlation expansion for the Glauber model S matrix. The calculations involve (i) up to the two-body density term in the correlation expansion, (ii) the relativistic mean-field (RMF) densities for the colliding nuclei, and (iii) the single Gaussian approximation for the nucleon-nucleon (NN) amplitude. To test the halo structure, the extended neutron density distribution for Ne31 is also used. Our results, using RMF densities, are in close agreement with the available experimental data at 240 MeV/nucleon except for Ne31, for which the extended neutron density distribution is found to play an important role in explaining the data, thereby supporting a halo structure in Ne31. The corresponding results at 950 MeV/nucleon are, however, not as satisfactory as those obtained at 240 MeV/nucleon. The results also demonstrate the importance of the two-body density term in the present calculations.

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  • Received 14 June 2014
  • Revised 1 July 2014

DOI:https://doi.org/10.1103/PhysRevC.90.024603

©2014 American Physical Society

Authors & Affiliations

Deeksha Chauhan*

  • United College of Engineering and Research, Allahabad, India

Z. A. Khan and A. A. Usmani

  • Department of Physics, Aligarh Muslim University, Aligarh, India

  • *dee.physics@gmail.com
  • zakhan.amu@gmail.com
  • anisul@iucaa.ernet.in

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Issue

Vol. 90, Iss. 2 — August 2014

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