Supernova Neutrino Opacity from Nucleon‐Nucleon Bremsstrahlung and Related Processes
Supernova Neutrino Opacity from Nucleon‐Nucleon Bremsstrahlung and Related Processes
Elastic scattering on nucleons, νN → Nν, is the dominant supernova (SN) opacity source for μ and τ neutrinos. The dominant energy- and number-changing processes were thought to be νe- → e-ν and ν↔e+e− until Suzuki showed that the bremsstrahlung process νNN↔NN was actually more important. We find that for …