arXiv 1102.22722011-02-11nucl-thnucl-ex

Prerainbow Oscillations in $^3$He Scattering from the Hoyle State of $^{12}$c and Alpha Particle Condensation

S. Ohkubo, Y. Hirabayashi

备注：: 6 pages, 3 figures
发表信息：: Physics of Unstable Nuclei,(World Scientific Publishing 2008), p.91-97,ISBN-13 978-981-277-614-3

英文摘要：

$^3$He+$^{12}$C scattering is studied in a coupled channel method by using a double folding model with microscopic wave functions of $^{12}$C. Experimental angular distributions in elastic and inelastic scattering to the $2^+$ (4.44 MeV), 0$^+_2$ (7.65 MeV) and 3$^-$ (9.63 MeV) states of $^{12}$C are well reproduced. It is found that the Airy minimum of the prerainbow oscillations for the Hoyle state is considerably shifted to a larger angle due to its dilute density distribution compared with that of the normal ground state in agreement with the idea of $α$ particle condensation.

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