Study of the Hoyle state in 12C produced by 20Ne + 12C reactions

Rebillard-Soulie, A. and Gruyer, D. and Verde, G. (2022) Study of the Hoyle state in 12C produced by 20Ne + 12C reactions. Il nuovo cimento C, 45 (3). pp. 1-7. ISSN 1826-9885

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Abstract

Since its discovery, the Hoyle state of 12C has attracted much interest. Its properties have been discussed several times, due to its cluster structure and the astrophysical implications. In this contribution, the Hoyle state decay has been studied using 20Ne+12C reactions at 25 MeV/nucleon. The invariant mass method has been used to get all the properties of the original 12C starting from a 3-α correlation. The background in the reconstructions was removed using the event mixing method. Finally, we made a simulation of the 3-α decay, including the effects of angular and energy resolutions assuming different possible modes. As a first result, we show a qualitative agreement of the experimental data with the simulated sequential decay. Further studies are ongoing to precisely extract the branching ratios and all the uncertainties due to the simulation parameters.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	30 Jun 2022 13:49
Last Modified:	30 Jun 2022 13:49
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21943

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