Article: Floor of cosmogenic neutrino fluxes above 10^17 eV
Figure : Energy flux of neutrinos (single flavor) expected from cosmic-ray interactions in the milky way (“Milky Way”) compared to those from the minimal model of cosmic rays escaping from…
Articles produced by the “High-energy astroparticles” group
Article: Constraints on metastable superheavy dark matter coupled to sterile neutrinos with the Pierre Auger Observatory
By APHE Auger group et al. (Pierre Auger Collaboration) One intriguing aspect of the Standard Model (SM) of particle physics is the absence of right-handed degrees of freedom to describe…
Article: Impact of Galaxy clusters on UHECR propagation
By Antonio Condorelli a, Jonathan Biteau a,b, Remi Adamc a Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France b Institut universitaire de France (IUF) c Université Côte d’Azur, Observatoire de la…
AugerPrime scintillators and station electronics completed
AugerPrime detector with the SSD and RD atop the WCD.The station electronics is hidden underneath the dome visible on top of the WCD. Operating since 2004, the Pierre Auger Observatory…
Article: Multiwavelength analysis of Galactic Supernova Remnants
The photon spectrum of HESS J1731-347 fitted by using the lepto-hadronic model. By P. Sharmaa, Z. Oub, C. Henry-Cadrota, C. Dubosa and T. Suomijärvia aUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay,…
Why the night is dark? A 200 years old question.
Publised in The Conversation, "Why the night is dark? A 200 years old question" (French only). Jonathan Biteau (Pôle A2C, équipe APHE) et al.
Article: Observational constraints on cosmic-ray escape from ultra-high-energy accelerators
Energy flux of ultra-high energy cosmic rays at the Earth as a function of energy. The spectrum of all particles and the proton component are represented by black circles and…
Article: Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory
Flux map at energies above 40 EeV with a top-hat smoothing radius of 25° in Galactic coordinates. The supergalactic plane is shown as a gray line. The blank area is…
Article: Limits to gauge coupling in the dark sector set by the non-observation of instanton-induced decay of Super-Heavy Dark Matter in the Pierre Auger Observatory data
Upper limits at 95\% C.L. on the effective coupling constant of a hidden gauge interaction as a function of the mass of a dark matter particle X decaying into quark/anti-quark…
Article: Predicted diffuse flux of ultra-high energy photons in the galactic plane; its implications for the search for super-heavy dark matter
Upper limits on diffuse photon fluxes for several energy thresholds, and expected fluxes from UHECRs interactions with the gas distribution in the Galaxy (grey dashed and blue dashed-dotted lines), as…