Observation of an Airy minimum in elastic and inelastic scattering of 3He from 12C at 50.5 and 60 MeV, and α-particle condensation in 12C

Sh. Hamada, Y. Hirabayashi, N. Burtebayev, and S. Ohkubo
Phys. Rev. C 87, 024311 – Published 13 February 2013

Abstract

Angular distributions for elastic and inelastic scattering of 3He from 12C were measured at energies 50.5 and 60 MeV. The Airy minimum of the prerainbow scattering was clearly observed in the angular distributions for the 02+ (7.65 MeV) state of 12C (Hoyle state). The experimental results were analyzed with a coupled channels method with double folding potentials derived from the microscopic wave functions for the ground 01+, 2+ (4.44 MeV), 3 (9.64 MeV), and 02+ states. The analysis supports the view that the Hoyle state is a three α particle condensate with a large radius of dilute matter distribution.

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  • Received 2 December 2012

DOI:https://doi.org/10.1103/PhysRevC.87.024311

©2013 American Physical Society

Authors & Affiliations

Sh. Hamada1, Y. Hirabayashi2, N. Burtebayev3, and S. Ohkubo4,5

  • 1Faculty of Science, Tanta University, Tanta, Egypt
  • 2Information Initiative Center, Hokkaido University, Sapporo 060-0811, Japan
  • 3Institute of Nuclear Physics, Almaty, Kazakhstan
  • 4Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
  • 5University of Kochi, 5-15 Eikokuji, Kochi 780-8515, Japan

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Vol. 87, Iss. 2 — February 2013

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