Oct 20 – 23, 2026
RIKEN
Asia/Tokyo timezone
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Validity test of 20Ne as a Trojan Horse nucleus toward the measurement of the 16O+16O fusion cross section

Oct 21, 2026, 6:00 PM
3h
Headquarters Building 2F (RIKEN)

Headquarters Building 2F

RIKEN

2-1, Hirosawa, Wako, Saitama 351-0198, Japan
Poster Presentation Poster Session

Speaker

marco la cognata (infn-lns)

Description

Our recent work [1] investigates the 16O+16O fusion reaction, a critical process for understanding how massive stars burn oxygen during their final evolutionary stages. Because direct measurements at low stellar energies are difficult to obtain, researchers performed a validity test using the Trojan Horse Method to study the reaction indirectly. The study specifically explores using 20Ne as a Trojan Horse nucleus, examining its internal alpha-particle and 16O cluster structure to act as a virtual source for the fusion. Experimental data gathered from laboratories in Poland and Kazakhstan were compared against theoretical simulations involving relativistic mean-field models. The results show a fair agreement between the measured reaction yields and predictions, confirming that 20Ne is a viable tool for future nuclear astrophysics research. This successful test paves the way for more precise independent measurements of fusion cross sections that occur deep within stellar interiors.

[1] S. Hayakawa, S. Typel, M. La Cognata, et al., "Validity test of 20Ne as a Trojan Horse nucleus toward the measurement of the 16O+16O fusion cross section", Eur. Phys. J. A (2026) 62:13.

Category Experiment

Authors

Seiya Hayakawa (Center for Nuclear Study, University of Tokyo) marco la cognata (infn-lns)

Presentation materials

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