Neutrino emissivities and transport in AMM-modified magnetized matter

Determine how Landau quantization and baryonic anomalous magnetic moments modify neutrino emissivities and transport coefficients, including direct-Urca processes and the resulting directional neutrino-emission asymmetries, in finite-temperature proto-neutron-star matter.

Background

The paper finds that magnetic fields and anomalous magnetic moments alter proton, lepton, and hyperon fractions, while Landau-level depopulation produces step-like composition changes. These effects may modify the kinematic thresholds and rates of weak processes such as direct Urca in proto-neutron-star matter.

The cited literature shows that strong magnetic fields can produce directional asymmetries in neutrino emission. The present work does not calculate finite-temperature weak-interaction rates or transport, so the connection between its equation-of-state/composition results and neutrino emission remains unresolved.

References

However, we do not compute neutrino emissivities or transport coefficients in the present work, so establishing such a connection is left for future work.

— Effects of Strong Magnetic Fields on the Equation of State and Mass-Radius Structure of Hyperonic Neutron-Star Matter with Anomalous Magnetic Moments  (2609.02441 - German et al., 2 Sep 2026) in Section V, Discussion; reiterated in the concluding discussion