Chiral effects on lepton transport in core-collapse supernovae
- December 13 (Tue) at 13:30 - 15:00, 2022 (JST)
- Di-Lun Yang (Assistant Research Fellow, Institute of Physics, Academia Sinica, Taiwan)
- Hybrid Format (Common Room 246-248 and Zoom)
- Etsuko Itou
Dynamics of leptons such as electrons and neutrinos play an important role in the evolution of core-collapse supernovae (CCSN). Nevertheless, chirality as one of fundamental microscopic properties that could affect lepton transport, through e.g. weak interaction, has been mostly overlooked. In this talk, I will discuss how chiral effects such as the renowned chiral magnetic effect (CME), generating an electric charge current along magnetic fields with chirality imbalance, could result in the unstable modes of magnetic fields and inverse cascade, which potentially influence the matter evolution in CCSN and pulsar kicks. I will also show how an effective CME could be realized via the backreaction from neutrino radiation even in the absence of an axial charge characterizing an unequal number of right- and left-handed electrons.
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