PIRSA:23050034

New probes of ultrahigh energy cosmic ray source evolution

Muzio, M. (2023). New probes of ultrahigh energy cosmic ray source evolution. Perimeter Institute. https://pirsa.org/23050034

Muzio, Marco. New probes of ultrahigh energy cosmic ray source evolution. Perimeter Institute, May. 16, 2023, https://pirsa.org/23050034 

          @misc{ pirsa_PIRSA:23050034,
            doi = {10.48660/23050034},
            url = {https://pirsa.org/23050034},
            author = {Muzio, Marco},
            keywords = {Particle Physics},
            language = {en},
            title = {New probes of ultrahigh energy cosmic ray source evolution},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {may},
            note = {PIRSA:23050034 see, \url{https://pirsa.org}}
          }

Marco Muzio Pennsylvania State University

DOI 10.48660/23050034
Collection
Talk Type Scientific Series
Subject

Abstract

Despite first observing cosmic rays with energies above an EeV (10^18 eV) in the 1960s, the source of these particles remains an open question. Modern observatories, in particular the Pierre Auger Observatory and Telescope Array, have firmly established that the cosmic ray spectrum continues up to ~10^20.3 eV and have significantly advanced our understanding of these particles. However, limited statistics, uncertainties in particle physics, and significant deflections in the Galactic magnetic field have made progress towards discovering their astrophysical source extremely challenging. One key astrophysical input needed to understand ultrahigh energy cosmic ray data is the distribution of their sources, or the source evolution. In this talk, I will focus on multimessenger observations which have the potential to pin down the source evolution for the very first time.

Zoom Link:  https://pitp.zoom.us/j/94054513261?pwd=aHRNWE04VDI2cDA2RmRYQmtNRnd3dz09