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New modes of halo excitation in the6He nucleus

B. V. Danilin, T. Rogde, S. N. Ershov, H. Heiberg-Andersen, J. S. Vaagen, I. J. Thompson, and M. V. Zhukov
Phys. Rev. C 55, R577(R) – Published 1 February 1997
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Abstract

Predictions are made for the structure of a second 2+ resonance, the soft dipole mode and unnatural parity modes in the 6He continuum. We use a structure model which describes the system as a three-body α+N+N cluster structure, giving the experimentally known properties of 6He and 6Li, and use the distorted-wave impulse approximation (DWIA) reaction theory appropriate for dilute matter. The presence of both resonant and nonresonant structures in the halo excitation continuum is shown to be manifest in charge-exchange reactions as well as inelastic scattering with single nucleons.

  • Received 4 September 1996

DOI:https://doi.org/10.1103/PhysRevC.55.R577

©1997 American Physical Society

Authors & Affiliations

B. V. Danilin1,2, T. Rogde1, S. N. Ershov1,3, H. Heiberg-Andersen1, J. S. Vaagen1,4, I. J. Thompson5, and M. V. Zhukov6

  • 1SENTEF, Department of Physics, University of Bergen, Allégt. 55, 5007 Bergen, Norway
  • 2RRC The Kurchatov Institute, Kurchatov Sq. 1, 123182, Moscow, Russia
  • 3JINR - Dubna, 141980 Dubna, Moscow region, Russia
  • 4ECT* European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Trento, Italy
  • 5Department of Physics, University of Surrey, Guildford GU2 5XH, United Kingdom
  • 6Chalmers University of Technology and Göteborg University, S-41296 Göteborg, Sweden

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Vol. 55, Iss. 2 — February 1997

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