Reduced Beta Decay Rates of Iron Isotopes for Supernova Physics

During the late phases of stellar evolution beta decay on iron isotopes, in the core of massive stars, plays a crucial role in the dynamics of core‐collapse. The beta decay contributes in maintaining a ‘respectable’ lepton‐to‐baryon ratio (Ψe) of the core prior to collapse which results in a larger shock energy to power the explosion. It is indeed a fine tuning of the parameter Ψe at various stages of supernova physics which can lead to a successful transformation of the collapse into an explosion. The calculations presented here might help in fine‐tuning of Ψe for the collapse simulators of massive stars.