Carbon burning plays a crucial role in stellar evolution, where this reaction is an important route for the production of heavier elements. A particle-γ coincidence technique that minimizes the backgrounds to which this reaction is subject and provides reliable cross sections has been used at the Argonne National Laboratory to measure fusion cross-sections at deep sub-barrier energies in the12C+12C system. The corresponding excitation function has been extracted down to a cross section of about 6 nb. This indicates the existence of a broad S-factor maximum for this system. Experimental results are presented and discussed.
How well do we understand the reaction rate of C burning? / S. Courtin, C.L. Jiang, G. Fruet, K. Auranen, M.L. Avila, A.D. Ayangeakaa, B.B. Back, S. Bottoni, M. Carpenter, C. Dickerson, B. Digiovine, J.P. Greene, D.J. Henderson, C.R. Hoffman, R.V.F. Janssens, B.P. Kay, S.A. Kuvin, T. Lauritsen, R.C. Pardo, K.E. Rehm, D. Santiago-Gonzalez, J. Sethi, D. Seweryniak, R. Talwar, C. Ugalde, S. Zhu, C.M. Deibel, S.T. Marley, D. Bourgin, F. Haas, M. Heine, D. Montanari, D.G. Jenkins, L.G. Morris, A. Lefebvre-Schuhl, S. Almaraz-Calderon, X. Fang, X.D. Tang, M. Alcorta, B. Bucher, M. Albers, P. Bertone. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - 163:(2017 Nov 22). (Intervento presentato al convegno FUSION 2017 : November, 20th - 24th tenutosi a Hobart (Australia) nel 2017) [10.1051/epjconf/201716300011].
How well do we understand the reaction rate of C burning?
S. Bottoni;
2017
Abstract
Carbon burning plays a crucial role in stellar evolution, where this reaction is an important route for the production of heavier elements. A particle-γ coincidence technique that minimizes the backgrounds to which this reaction is subject and provides reliable cross sections has been used at the Argonne National Laboratory to measure fusion cross-sections at deep sub-barrier energies in the12C+12C system. The corresponding excitation function has been extracted down to a cross section of about 6 nb. This indicates the existence of a broad S-factor maximum for this system. Experimental results are presented and discussed.
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