374 citations · 2.9k across the 46 of their papers we have counts for
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Modeling Strangeness Enhancements to resolve the Muon Excess in Cosmic Ray Extensive Air Shower Data
Julien Manshanden, Günter Sigl, Maria V. Garzelli
Experimental observations of extensive air showers have revealed an excess of the muon content with respect to their theoretical simulations, which we refer to as the muon puzzle.…
Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
A. Addazi, J. Alvarez-Muniz, R. Alves Batista +157
The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experim…
Collisional triggering of fast flavor conversions of supernova neutrinos
Francesco Capozzi, Basudeb Dasgupta, Alessandro Mirizzi +2
Fast flavor conversions of supernova neutrinos, possible near the neutrinosphere, depends on an interesting interplay of collisions and neutrino oscillations. Contrary to naive exp…
Liouville term for neutrinos: Flavor structure and wave interpretation
Tobias Stirner, Günter Sigl, Georg Raffelt
Neutrino production, absorption, transport, and flavor evolution in astrophysical environments is described by a kinetic equation .…
Present theoretical uncertainties on charm hadroproduction in QCD and prompt neutrino fluxes
M. V. Garzelli, S. Moch, G. Sigl
Prompt neutrino fluxes are basic backgrounds in the search of high-energy neutrinos of astrophysical origin, performed by means of full-size neutrino telescopes located at Earth, u…
Indirect and direct search for dark matter
Michael Klasen, Martin Pohl, Günter Sigl
The majority of the matter in the universe is still unidentified and under investigation by both direct and indirect means. Many experiments searching for the recoil of dark-matter…
Lepton fluxes from atmospheric charm revisited
M. V. Garzelli, S. Moch, G. Sigl
We update predictions for lepton fluxes from the hadroproduction of charm quarks in the scattering of primary cosmic rays with the Earth's atmosphere. The calculation of charm-pair…
The 130 GeV gamma-ray line and generic dark matter model building constraints from continuum gamma rays, radio and antiproton data
Masaki Asano, Torsten Bringmann, Gunter Sigl +1
An analysis of the Fermi gamma ray space telescope data has recently revealed a resolved gamma-ray feature close to the galactic center which is consistent with monochromatic photo…
Multi-angle effects in collective supernova neutrino oscillations
Andreu Esteban-Pretel, Sergio Pastor, Ricard Tomas +2
We study two-flavor collective neutrino oscillations in the dense-neutrino region above the neutrino sphere in a supernova (SN). The angular dependence of the neutrino-neutrino int…
Constraints on Light Dark Matter From Core-Collapse Supernovae
Pierre Fayet, Dan Hooper, Gunter Sigl
We show that light ( 1 -- 30 MeV) dark matter particles can play a significant role in core-collapse supernovae, if they have relatively large annihilation and scattering c…
Gamma rays from the Galactic bulge and large extra dimensions
Michel Casse, Jacques Paul, Gianfranco Bertone +1
An intriguing feature of extra dimensions is the possible production of Kaluza--Klein gravitons by nucleon-nucleon bremsstrahlung in the course of core collapse of massive stars, a…
Probing Physics at Extreme Energies with Cosmic Ultra-High Energy Radiation
Guenter Sigl
The highest energy cosmic rays observed possess macroscopic energies and their origin is likely to be associated with the most energetic processes in the Universe. Their existence…