The role of 12C(12C,n) in the astrophysical S-process

B. Bucher, J. Browne, S. Almaraz-Calderon, A. Alongi, A. D. Ayangeakaa, A. Best, M. Couder, J. Deboer, X. Fang, W. Lu, M. Notani, D. Patel, N. Paul, A. Roberts, R. Talwar, W. Tan, X. D. Tang, A. Villano

Research output: Contribution to journalConference articlepeer-review

Abstract

The elements between iron and strontium are largely produced by the weak s-process occurring in massive stars during the late stages of convective core He burning and the convective shell carbon burning with the primary source of neutrons coming from the reaction 22Ne(α,n)25Mg. However, shell carbon burning may produce hot enough temperatures to activate 12C(12C,n)23Mg as a significant neutron source. Few studies have been done on this reaction, and the extrapolation from experimental data down to the relevant astrophysical energies is uncertain. Recent studies performed at the Nuclear Science Laboratory of Notre Dame aim to improve the existing reaction data using new experimental techniques as well as provide a more reliable extrapolation to the low energies not accessible by experiment. Preliminary results will be presented and the astrophysical implications will be discussed.

Original languageEnglish (US)
Article number012121
JournalJournal of Physics: Conference Series
Volume381
Issue number1
DOIs
StatePublished - 2012
EventRutherford Centennial Conference on Nuclear Physics - Manchester, United Kingdom
Duration: Aug 8 2011Aug 12 2011

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