EPJ Web Conf.
Volume 260, 2022The 16th International Symposium on Nuclei in the Cosmos (NIC-XVI)
|Number of page(s)||4|
|Section||Nuclear Reaction Rates and Stellar Abundances|
|Published online||24 February 2022|
Direct Measurement of Carbon Fusion at Astrophysical Energies with Gamma-Particle Coincidences
1 Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
2 USIAS/Université de Strasbourg, Strasbourg, F-67083, France
3 University of York, York, YO10 5DD, UK
4 IPN, CNRS/IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
5 Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
6 National Physical Laboratory, Teddington, Middlesex, TW110 LW, UK
7 NIMBE, CEA, CNRS, Université Paris-Saclay CEA Saclay F-91191 Gif sur Yvette, France
8 CSNSM, Université Paris Sud, UMR 8609-CNRS/IN2P3, F-91405 Orsay, France
9 GANIL, CEA/DSM-CNRS/IN2P3, Caen, F-14076, France
* e-mail: email@example.com
Published online: 24 February 2022
We present 12C+12C direct fusion measurements with STELLA UKFATIMA, that reach into the region of astrophysics interest relevant to massive stars (M⊙ ≈ 25) using self-supporting thin rotating carbon foils . We demonstrate that detecting gammas and light charged particles in coincidence with nanosecond timing is key for effective background reduction achieving reliable measurements in the sub-nanobarn range. We give details about core developments of the detection apparatus as well as the coincidence-analysis procedure of low count statistics. The present data largely follows the phenomenological hindrance interpolation and shows indication for resonant behaviour at the lowest energy explored.
© The Authors, published by EDP Sciences, 2022
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