https://doi.org/10.1051/epjconf/202429207001
Study of highly excited states in 16O with 3He+13C reactions at low energies
1 Dip. di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123, Catania, Italy
2 INFN – Sezione di Catania, via S. Sofia 64, 95123, Catania, Italy
3 Dip. di Fisica, Università di Napoli Federico II, via Cintia, 80126, Napoli, Italy
4 INFN – Sezione di Napoli, via Cintia, 80126, Napoli, Italy
5 Dip. di Fisica e Astronomia, Univ. di Padova, via Marzolo, 30020, Padova, Italy
6 Dip. di Fisica e Astronomia, Univ. di Firenze, via G. Sansone, 50019, Sesto Fiorentino (FI), Italy
7 INFN – Sezione di Firenze, via G. Sansone, 50019, Sesto Fiorentino (FI), Italy
8 INFN – Laboratori Nazionali di Legnaro, via dell’Università, 35020, Legnaro (PD), Italy
9 INFN – Sezione di Padova, via Marzolo, 30020, Padova, Italy
* e-mail: ivano.lombardo@ct.infn.it
Published online: 14 March 2024
We report some preliminary experimental results on 13C(3He,α)12C reactions at low bombarding energies, in the range 1.4 – 2.2 MeV. The reconstruction of kinematic quantities in the final channel was performed by using a high-performance, low-threshold hodoscope, allowing for the particle identification even for low energy ejectiles. We succeeded in measuring detailed angular distributions, in absolute values, even for the transition leading to the emission of 12C in the Hoyle state, then resulting into 4 α particles in the final channel. The analysis of angular distributions as a function of energy suggests the occurrence of two low-spin resonant states, respectively with Jπ = 1− and 2+, at excitation energies of ≈ 24.1 and 24.5 MeV.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
