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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:26 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Measurement of 13C+12C fusion cross section at deep sub-barrier
energies in IFIN-HH. Activation measurements.
Authors:
Dana TUDOR(1,2), Alexandra Ionela CHILUG(1,2), Livius TRACHE(1), Mihai STRATICIUC(1), Ion BURDUCEA(1),
Dan G. GHITA(1), Romul MARGINEANU(1), Aana PANTELICA(1), I. STROIESCU(1),
Ionut STEFANESCU(1), Claudia GOMOIU(1), N. ZHANG (3), X. TANG(3), H. CHEN(3)
*
Affiliation:
1)IFIN-HH, Bucharest-Magurele, Romania
2)Faculty of Physics, Magurele, Romania
3)Institute of Modern Physics, Lanzhou, China
E-mail
tudordana29@gmail.com
Keywords:
Abstract:
Heavy-ion fusion reactions between light nuclei such as carbon and oxygen isotopes have been studied because of their significance for a wide variety of stellar burning scenarios. One important stellar reaction is 12C+12C, but it is difficult to measure it in the Gamow window because of very low cross sections and several resonances occurring. Hints can be obtained from the study of 13C+12C reaction. We have measured it by an activation method for energies down to Ecm=2.2 MeV wich is the lowest energy ever reached for this reaction (down into Gamow window), using 13C beams from the Bucharest 3 MV tandetron and gamma-ray deactivation measurements in our low and ultralow background laboratories, the latter located in a salt mine about 100 km north of Bucharest. Results of the experiments so far are shown and discussed.
References:
[1] Claus E. Rolfs and William S. Rodney, Cauldrons in the Cosmos, University Of Chicago Press, Chicago, 580 p
[2] X. Fang et al., Journal of Physics: Conference Series 420, 012151, 2013
[3] I. Burducea, M. Straticiuc, D.G. Ghita, D.V. Mosu, C.I. Calinescu, N.C. Podaru, D.J.W. Mous, I. Ursu, N.V. Zamfir, Nuclear Instruments and Methods in Physics Research B 359, 1219, 2015.
[4] D. Chesneanu, L. Trache, R. Margineanu, A. Pantelica, D. Ghita, M. Straticiuc, I. Burducea, A. M. Blebea-Apostu, C. M. Gomoiu, and X. Tang, AIP Conference Proceedings 1645, 311 (2015).
[5] R. Margineanu, C. Simion, S. Bercea, O.G. Duliu, D. Gheorghiu, A. Stochioiu, M. Matei, Applied Radiation and Isotopes 66, 1501-1506, 2008.
[6] D. Tudor, A.I. Chilug, M. Straticiuc, L. Trache et al., in C. Spitaleri, L. Lamia and G.R. Pizzone (eds.), Proceedings of the 8th European Summer School of Physics on Experimental Nuclear Astrophysics (Santa Tecla School), J. of Phys: Conf Series, vol. 703 (2016) 012028.
[7] R.A.Dayras, R.G. Stokstad, Z.E.Switkowski and R.M.Wieland, Nuclear Physics A 625, 152-188, 1976
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