Explosive nucleosynthesis with fast neutrino-flavour conversion in core-collapse supernovae

ABSTRACT Fast neutrino (ν)-flavour conversion (FFC) is a possible game-changing ingredient in core-collapse supernova (CCSN) theory. In this paper, we examine the impact of FFC on explosive nucleosynthesis by including effects conjunction with asymmetric ν emission into nucleosynthetic computations parametric way. We find that ejecta compositions are not appreciably affected for elements lighter than Co while influenced heavier elements. also role varies depending degree (masy) and ν-flavour mixing. The monotonic to masy. change composition increases higher masy up ∼10 per cent compared without FFC, whereas has little effect very large (${\gtrsim}30\,\hbox{per cent}$). Our results suggest facilitates production neutron-rich most cases, although it makes more proton-rich if anti-ν vigorous ν. key accounting trend absorption, whose can be quantified simple diagnostics.