Extending the Hoyle-State Paradigm to ^{12}C+^{12}C Fusion. Academic Article uri icon


  • Carbon burning is a key step in the evolution of massive stars, Type 1a supernovae and superbursts in x-ray binary systems. Determining the ^{12}C+^{12}C fusion cross section at relevant energies by extrapolation of direct measurements is challenging due to resonances at and below the Coulomb barrier. A study of the ^{24}Mg(,^{'})^{24}Mg reaction has identified several 0^{+} states in ^{24}Mg, close to the ^{12}C+^{12}C threshold, which predominantly decay to ^{20}Ne(ground state)+. These states were not observed in ^{20}Ne(,_{0})^{20}Ne resonance scattering suggesting that they may have a dominant ^{12}C+^{12}C cluster structure. Given the very low angular momentum associated with sub-barrier fusion, these states may play a decisive role in ^{12}C+^{12}C fusion in analogy to the Hoyle state in helium burning. We present estimates of updated ^{12}C+^{12}C fusion reaction rates.

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.5

author list (cited authors)

  • Adsley, P., Heine, M., Jenkins, D. G., Courtin, S., Neveling, R., Brmmer, J. W., ... Yahia-Cherif, W.

citation count

  • 4

complete list of authors

  • Adsley, P||Heine, M||Jenkins, DG||Courtin, S||Neveling, R||Brümmer, JW||Donaldson, LM||Kheswa, NY||Li, KCW||Marín-Lámbarri, DJ||Mabika, PZ||Papka, P||Pellegri, L||Pesudo, V||Rebeiro, B||Smit, FD||Yahia-Cherif, W

publication date

  • September 2022