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Neutrino Production Associated with Late Bumps in Gamma-Ray Bursts and Potential Contribution to Diffuse Flux at IceCube
Gang Guo, Yong-Zhong Qian, Meng-Ru Wu
IceCube has detected many TeV--PeV neutrinos, but their astrophysical origins remain largely unknown. Motivated by the observed late-time X-ray/optical bumps in some gamma-ray burs…
Presupernova neutrino signals as potential probes of neutrino mass hierarchy
Gang Guo, Yong-Zhong Qian, Alexander Heger
We assess the potential of using presupernova neutrino signals at the Jiangmen Underground Neutrino Observatory (JUNO) to probe the yet-unknown neutrino mass hierarchy. Using model…
Improved axion emissivity from a supernova via nucleon-nucleon bremsstrahlung
Pierluca Carenza, Tobias Fischer, Maurizio Giannotti +3
The most efficient axion production mechanism in a supernova (SN) core is the nucleon-nucleon bremsstrahlung. This process has been often modeled at the level of the vacuum one-pio…
Chiral effective field theory description of neutrino nucleon-nucleon Bremsstrahlung in supernova matter
Gang Guo, Gabriel Martínez-Pinedo
We revisit the rates of neutrino pair emission and absorption from nucleon-nucleon bremsstrahlung in supernova matter using the -matrix formalism in the long-wavelength limit. B…