First direct measurement of 12C(12C,n)23Mg at stellar energies

Bibliographic Details
Title: First direct measurement of 12C(12C,n)23Mg at stellar energies
Authors: Tang X.D., Bucher B., Fang X., Heger A., Almaraz-Calderon S., Alongi A., Ayangeakaa A.D., Beard M., Best A., Browne J., Cahillane C., Couder M., deBoer R.J., Kontos A., Lamm L., Li Y.J., Long A., Lu W., Lyons S., Notani M., Patel D., Paul N., Pignatari M., Roberts A., Robertson D., Smith K., Stech E., Talwar R., Tan W.P., Wiescher M., Woosley S.E.
Source: EPJ Web of Conferences, Vol 109, p 04009 (2016)
Publisher Information: EDP Sciences, 2016.
Publication Year: 2016
Collection: LCC:Physics
Subject Terms: Physics, QC1-999
More Details: Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at astrophysical energies. We present the first direct measurement which extends deep into the astrophysical energy range along with a new and improved extrapolation technique based on experimental data from the mirror reaction 12C(12C,p)23Na. The new reaction rate has been determined with a well-defined uncertainty which exceeds the precision required by astrophysics models. Using our constrained rate, we find that 12C(12C,n)23Mg is crucial to the production of Na and Al in Pop-III Pair Instability Supernovae.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2100-014X
Relation: https://doaj.org/toc/2100-014X
DOI: 10.1051/epjconf/201610904009
Access URL: https://doaj.org/article/9f96780fe57743a48ba5a8530304ae81
Accession Number: edsdoj.9f96780fe57743a48ba5a8530304ae81
Database: Directory of Open Access Journals
More Details
ISSN:2100014X
DOI:10.1051/epjconf/201610904009
Published in:EPJ Web of Conferences
Language:English