Triple alpha resonances in the Li-6 + Li-6 -> 3 alpha reaction at low energy

Tumino, A. and Bonasera, A. and Giuliani, G. and Lattuada, M. and Milin, Matko and Pizzone, R.G. and Spitaleri, C. and Tudisco, S. (2015) Triple alpha resonances in the Li-6 + Li-6 -> 3 alpha reaction at low energy. Physics Letters B, 750. pp. 59-63. ISSN 0370-2693

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Abstract

The Li-6 + Li-6 -> 3 alpha reaction has been measured in a kinematically complete experiment at 3.1 MeV of beam energy. The reaction mainly proceeds via intermediate Be-8 states. The interaction between any two of the three a particles provides events with one, two or three Be-8 interfering levels, with strong enhancement in the a-a coincidence yield. Evidence of three Be-8 levels within the same 3a event suggests that one a particle is exchanged between the other two. This is a condition for Efimov states to occur in nuclei, for which no observation exists yet. The hyperspherical formalism for the low-energy three-body problem has been applied to point out the 3 alpha particle correlation.

Item Type: Article
Keywords: nuclear physics ; few-body physics ; clusters ; resonances
Date: 28 August 2015
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 16 June 2015. Received in revised form 16 August 2015. Accepted 23 August 2015. Available online 28 August 2015.
Divisions: Faculty of Science > Department of Physics
Project code: 098-1191005-2890
Funders: Ministarstvo znanosti, obrazovanja i športa
Publisher: Elsevier
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 26 Mar 2017 19:31
Last Modified: 26 Mar 2017 19:31
URI: http://digre.pmf.unizg.hr/id/eprint/5478

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