Carbon Burning: Theory, Astrophysics and Experiments

Session

Indirect Measurements II

1 Jul 2026, 11:00

Sala Conferenze di Palazzo del Monte di Pietà

12. Fusion hindrance in medium-light systems as a path toward the lighter cases of astrophysical interest

Prof. Giovanna Montagnoli (UNIPD)

01/07/2026, 11:00

The physics underlying the fusion hindrance phenomenon [a] and, consequently, its features
in the various systems, as well as their link to different nuclear structure situations, may be related to the Pauli exclusion principle [b], but it has not yet been fully clarified. Furthermore, we know that its existence in the fusion of light systems may have significant consequences in astrophysics...

13. Bayesian Analysis of the 12C + 12C Astrophysical S Factor and Reaction Rate with Modern Inverse-Kinematics Constraints

Prof. Akram Mukhamedzhanov (Texas A&M University)

01/07/2026, 11:30

A Bayesian analysis of the modified astrophysical factor S∗(E) for the 12C + 12C fusion reaction is presented using available data at carbon–carbon energies Ecm < 3.5 MeV, including direct measurements, Coulomb-renormalized Trojan Horse Method results, and recent inverse-kinematics data.
The inference is performed for y(E) = log10 S∗(E), represented by a quadratic polynomial in energy with...

18. Investigation of $^{24}$Mg nuclear structure in the energy range relevant to carbon-burning in stars

Federica Ercolano (Università degli studi di Napoli "Federico II", INFN Sezione di Napoli)

01/07/2026, 12:00

The nuclear structure of $^{24}$Mg in the excitation energy region relevant to the $^{12}$C+$^{12}$C fusion reaction is crucial for constraining carbon-burning processes in massive stars. Although this reaction has been extensively studied over the past decades, significant uncertainties persist, particularly at center of mass energies below 2.5 MeV, where direct measurements are hindered by...

28. Fusion of $^{12}$C + $^{16}$O at extreme sub-barrier energies

Julgen Pellumaj (University of Padova, INFN-Padova)

01/07/2026, 12:15

The $^{12}$C + $^{16}$O reaction plays a particularly important role in both the carbon and oxygen-burning phases of stars. Fang et al. measured this reaction in a thick-target experiment a few years ago, with both singles and particle-γ coincidence techniques down to a few nanobarns. However, the lowest energy points suffer from large experimental uncertainties which prevent discriminating...