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The triple alpha reaction rate and the 2+ resonances in 12C

AuthorsDiego, Raul de ; Garrido, Eduardo ; Fedorov, D.V.; Jensen, A.S.
Issue Date2011
CitationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 695: 324- 328 (2011)
AbstractThe triple alpha rate is obtained from the three-body bound and continuum states computed in a large box. The results from this genuine full three-body calculation are compared with standard reference rates obtained by two sequential two-body processes. The fairly good agreement relies on two different assumptions about the lowest 2+ resonance energy. With the same 2+ energy the rates from the full three-body calculation are smaller than those of the standard reference. We discuss the rate dependence on the experimentally unknown 2+ energy. Substantial deviations from previous results appear for temperatures above 3 GK. © 2010 Elsevier B.V.
Identifiersdoi: 10.1016/j.physletb.2010.11.001
issn: 0370-2693
Appears in Collections:(CFMAC-IEM) Artículos
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