Reduced Beta Decay Rates of Iron Isotopes for Supernova Physics

Details Reduced Beta Decay Rates of Iron Isotopes for Supernova Physics Reduced Beta Decay Rates of Iron Isotopes for Supernova Physics

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1150..236n&link_type=abstract

FRONTIERS IN PHYSICS: 3rd International Meeting. AIP Conference Proceedings, Volume 1150, pp. 236-240 (2009).

Other

Masses, Neutron Stars, Supernovae, Shell Model, Neutrino, Muon, Pion, And Other Elementary Particles, Cosmic Rays

Scientific paper

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.

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