18–22 May 2026
Helga Engs Hus
Europe/Oslo timezone

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

22 May 2026, 12:50
20m
Auditorium 1 (Helga Engs Hus)

Auditorium 1

Helga Engs Hus

Sem Sælands vei 7, 0371 OSLO Norway

Speaker

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

Description

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 extremely low cross sections. In this context, indirect approaches providing detailed spectroscopic information on the compound nucleus $^{24}$Mg are essential.

In this contribution, we present a new dedicated experiment to be performed at the Oslo Cyclotron Laboratory (OCL) to investigate the excited states of $^{24}$Mg in the energy range 14-17 MeV via $\alpha$ inelastic scattering. Reaction products will be detected in coincidence using the Oslo Scintillator Array (OSCAR), the SiRi particle telescope, and the INFN OSCAR silicon hodoscope. The combined use of charged-particle and $\gamma$-ray spectroscopy will enable a reliable determination of the spin and parity of the populated states in $^{24}$Mg, as well as an estimate of the branching ratios of its decay channels.

Author

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

Co-authors

Daniele Dell'Aquila (Università degli Studi di Napoli Federico II, INFN Sezione di Napoli) Antonino Di Leva (Università degli Studi di Napoli Federico II, INFN Sezione di Napoli) Gianluca Imbriani (Università degli Studi di Napoli Federico II, INFN Sezione di Napoli) Vetle Wegner Ingeberg (Department of Physics, University of Oslo) Kevin Ching Wei Li (Department of Physics, University of Oslo) Ivano Lombardo (Dipartimento di Fisica e Astronomia, Università di Catania, INFN Sezione di Catania) Wanja Paulsen (Department of Physics, University of Oslo,) Mariano Vigilante (INFN Sezione di Napoli)

Presentation materials