A new 12C+12C reaction rate: Impact on stellar evolution Academic Article uri icon


  • Among the reactions driving stellar evolution during carbon burning, 12C + 12C fusion provides the key ingredients. This system reveals many resonances, but also regions with suppressed fusion cross-sections. The reaction was recently measured by the STELLA collaboration utilizing the gammaparticle coincidence technique for precise cross-section measurements reaching down to the Gamow window of massive stars. From the experimental data, reaction rates were determined by approximating a hindrance parametrization and by adding on top a resonance at the lowest measured energy. The impact of these reaction rates on the evolution of massive stars was explored with models of 12 and 25 M using the stellar evolution code GENEC, and a detailed study of the resulting nucleosynthesis with a 1454 elements network was performed. The sensitivity of the STELLA experimental cross-sections on the temperature range for C-burning for the stellar models studied were presented. The final abundances and their impacts on stellar evolution were discussed.

published proceedings


author list (cited authors)

  • Monpribat, E., Choplin, A., Martinet, S., Courtin, S., Heine, M., Adsley, P., ... Meynet, G.

citation count

  • 0

editor list (cited editors)

  • Freeman, S., Lederer-Woods, C., Manna, A., & Mengoni, A.

publication date

  • 2023