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

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 dire... Full description

Main Author: Tang X.D.
Contributors: Bucher B. | Author
Fang X. | Author
Heger A. | Author
Almaraz-Calderon S. | Author
Alongi A. | Author
Ayangeakaa A.D. | Author
Beard M. | Author
Best A. | Author
Browne J. | Author
Cahillane C. | Author
Couder M. | Author
deBoer R.J. | Author
Kontos A. | Author
Lamm L. | Author
Li Y.J. | Author
Long A. | Author
Lu W. | Author
Lyons S. | Author
Notani M. | Author
Patel D. | Author
Paul N. | Author
Pignatari M. | Author
Roberts A. | Author
Robertson D. | Author
Smith K. | Author
Stech E. | Author
Talwar R. | Author
Tan W.P. | Author
Wiescher M. | Author
Woosley S.E. | Author
Contained in: EPJ Web of Conferences (01.01.2016)
Journal Title: EPJ Web of Conferences
Fulltext access: Fulltext access (direct link - free access) 10.1051/epjconf/201610904009
Availability is being checked...
Interlibrary loan: Check possibility for interlibrary loan
Links: Additional Link (dx.doi.org)
Additional Link (doaj.org)
Fulltext access (doaj.org)
ISSN: 2100-014X
DOI: 10.1051/epjconf/201610904009
Language: English
Physical Description: Online-Ressource
ID (e.g. DOI, URN): 10.1051/epjconf/201610904009
PPN (Catalogue-ID): DOAJ014100010
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520 |a 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. 
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700 0 |a Lu W.  |e verfasserin  |4 aut 
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700 0 |a Pignatari M.  |e verfasserin  |4 aut 
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700 0 |a Talwar R.  |e verfasserin  |4 aut 
700 0 |a Tan W.P.  |e verfasserin  |4 aut 
700 0 |a Wiescher M.  |e verfasserin  |4 aut 
700 0 |a Woosley S.E.  |e verfasserin  |4 aut 
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