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Three-Body Model Analysis of Subbarrier alpha Transfer Reaction

By Tokuro Fukui, Kazuyuki Ogata and Masanobu Yahiro

Abstract

Subbarrier alpha transfer reaction 13C(6Li,d)17O(6.356 MeV, 1/2+) at 3.6 MeV is analyzed with a alpha + d + 13C three-body model, and the asymptotic normalization coefficient (ANC) for alpha + 13C --> 17O(6.356 MeV, 1/2+), which essentially determines the reaction rate of 13C(alpha,n)16O, is extracted. Breakup effects of 6Li in the initial channel and those of 17O in the final channel are investigated with the continuum-discretized coupled-channels method (CDCC). The former is found to have a large back-coupling to the elastic channel, while the latter turns out significantly small. The transfer cross section calculated with Born approximation to the transition operator, including breakup states of 6Li, gives (C_{alpha 13C}{17O*})^2 =1.03 \pm 0.29 fm^{-1}. This result is consistent with the value obtained by the previous DWBA calculation.Comment: 12 pages, 5 figures, accepted for publication in Progress of Theoretical Physic

Topics: Nuclear Theory, Nuclear Experiment
Year: 2011
DOI identifier: 10.1143/PTP.125.1193
OAI identifier: oai:arXiv.org:1104.1235
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