[NCTS Seminar - Particle Physics Journal Club] Chiral transport phenomena in core-collapse supernovae

  • Event Date: 2023-11-20
  • High energy phenomenology
  • Speaker: Prof. Di-Lun Yang (Academia Sinica)  /  Host: Dr. Naoki Yamatsu
    Place: R517, New Physics Building, NTU

Title:Chiral transport phenomena in core-collapse supernovae
Time:2023/11/20 (Mon.) 12:30
Place:R517, New Physics Building, NTU

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 widely 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.