Quasifree mechanism in the Li-6 + Li-6 -> 3 alpha reaction at low energy

Spitaleri, C. and Tumino, A. and Lattuada, M. and Pizzone, R.G. and Tudisco, S. and Miljanić, Đuro and Blagus, Saša and Milin, Matko and Skukan, Natko and Soić, Neven (2015) Quasifree mechanism in the Li-6 + Li-6 -> 3 alpha reaction at low energy. Physical Review C, 91 (2). pp. 24612-1. ISSN 0556-2813

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The Li-6 + Li-6 -> 3 alpha reaction was measured in a kinematically complete experiment at 3.1 and 2.5 MeV to investigate the presence of quasifree processes at sub-Coulomb energies. Results from the present experiment show a very clear evidence of quasifree mechanisms with an alpha-particle spectator either in the target or in the projectile. To check the occurrence of quasifree processes, "energy sharing" and "angular correlation" analyses have been performed in the framework of the plane wave impulse approximation, both leading to consistent results. The huge peak in the angular correlation spectra, previously ascribed to the "anomalous quasifree" process, corresponds instead to the population of the 22.2-MeV (2(+), Gamma = 800 keV) state of Be-8.

Item Type: Article
Keywords: trojan horse method, nuclear astrophysics, alpha-particles, low-energy
Date: 18 February 2015
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2015 American Physical Society. Received 4 December 2014. Published 18 February 2015.
Divisions: Faculty of Science > Department of Physics
Project code: 098-1191005-2890
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 22 Nov 2017 09:45
Last Modified: 22 Nov 2017 09:45
URI: http://digre.pmf.unizg.hr/id/eprint/5725

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