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Effects of Annihilation with Low-Energy Neutrinos on High-Energy Neutrinos from Binary Neutron Star Mergers and Rare Core-Collapse Supernovae
Gang Guo, Yong-Zhong Qian, Meng-Ru Wu
We explore the possibility that high-energy (HE) neutrinos produced from choked jets can be annihilated with low-energy (LE) neutrinos emitted from the accretion disk around a blac…
Neutrinos and nucleosynthesis of elements
Tobias Fischer, Gang Guo, Karlheinz Langanke +3
Neutrinos are known to play important roles in many astrophysical scenarios from the early period of the big bang to current stellar evolution being a unique messenger of the fusio…
R-process beta-decay neutrino flux from binary neutron star mergers and collapsars
Yu An, Meng-Ru Wu, Gang Guo +3
This study investigates the antineutrinos production by -decay of -process nuclei in two astrophysical sites that are capable of producing gamma-ray bursts (GRBs): binary neu…
Signature of Collapsars as Sources for High-energy Neutrinos and -process Nuclei
Gang Guo, Yong-Zhong Qian, Meng-Ru Wu
If collapsars are sources for both high-energy (HE) neutrinos and -process nuclei, the profuse low-energy antineutrinos from -decay of the newly-synthesized nuclei can annihi…
Compact Dark Objects in Neutron Star Mergers
Andreas Bauswein, Gang Guo, Jr-Hua Lien +2
We estimate the long-lasting gravitational wave (GW) emission of compact dark objects following a binary neutron-star (NS) merger. We consider compact dark objects, which initially…
Muonization of supernova matter
Tobias Fischer, Gang Guo, Gabriel Martínez-Pinedo +2
The present article investigates the impact of muons on core-collapse supernovae, with particular focus on the early muon neutrino emission. While the presence of muons is well und…
Elastic and Inelastic Scattering of Cosmic-Rays on Sub-GeV Dark Matter
Gang Guo, Yue-Lin Sming Tsai, Meng-Ru Wu +1
We revisit the signatures from collisions of cosmic-rays on sub-GeV dark matter (DM) in the Milky Way. In addition to the upscattered DM component that can be probed by existing DM…
Probing Cosmic-Ray Accelerated Light Dark Matter with IceCube
Gang Guo, Yue-Lin Sming Tsai, Meng-Ru Wu
The direct detection of particle dark matter through its scattering with nucleons is of fundamental importance to understand the nature of DM. In this work, we propose that the hig…
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…
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…
Neutrino signal from proto-neutron star evolution: Effects of opacities from charged-current-neutrino interactions and inverse neutron decay
Tobias Fischer, Gang Guo, Alan A. Dzhioev +4
We investigate the impact of charged current neutrino processes on the formation and evolution of neutrino spectra during the deleptonization of proto-neutron stars. To this end we…