Dynamical emission of heavy fragments in the 112,124Sn+58,64Ni reactions at 35 AMeV as seen with CHIMERA

A quantitative comparison regarding absolute cross sections associated to Statistical and Dynamical Fission in the system 124Sn+64Ni and112Sn+58Ni experimentally investigated at 35 AMeV beam energy is presented. It results that Dynamical Fission process is about two times more probable in the neutron rich 124Sn+64Ni system than in the 112Sn+58Ni neutron poor one. At this point of our analysis it is not clear if the observed difference is originated by different entrance channel Isospin (N/Z) content or by different size between the two investigated systems

Multi-Messenger Physics With the Pierre Auger Observatory

An overview of the multi-messenger capabilities of the Pierre Auger Observatory is presented. The techniques and performance of searching for Ultra-High Energy neutrinos, photons and neutrons are described. Some of the most relevant results are reviewed, such as stringent upper bounds that were placed to a flux of diffuse cosmogenic neutrinos and photons, bounds placed on neutrinos emitted from compact binary mergers that were detected by LIGO and Virgo during their first and second observing runs, as well as searches for high energy photons and neutrons from the Galactic center that constrain the properties of the putative Galactic PeVatron, observed by the H.E.S.S. collaboration. The observation of directional correlations between ultra-high energy cosmic rays and either high energy astrophysical neutrinos or specific source populations, weighted by their electromagnetic radiation, are also discussed. They constitute additional multi-messenger approaches aimed at identifying the sources of high energy cosmic rays. © Copyright © 2019 Kampert, Alejandro Mostafa, Zas and The Pierre Auger Collaboration

Calibration and Monitoring of the Pierre Auger Observatory

Contributions to the 31st International Cosmic Ray Conference, Lodz, Poland, July 2009International audienceReports on the atmospheric monitoring, calibration, and other operating systems of the Pierre Auger Observatory. Contributions to the 31st International Cosmic Ray Conference, Lodz, Poland, July 2009

The Cosmic Ray Energy Spectrum and Related Measurements with the Pierre Auger Observatory

Submissions to the 31st International Cosmic Ray ConferenceInternational audienceStudies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory