Discovery of a new Feature in Cosmic Ray Spectrum

Dr. Fahim Varsi, doctoral student in Physics department working under supervision of Prof. Pankaj Jain (SPASE department) discovers a kink in the cosmic ray spectrum. It is generally expected that cosmic rays originate from a supernova explosion and display a simple power law spectrum up to energies of order of a million GeV. The presence of a kink challenges this understanding and indicates the presence of another source. The discovery may provide some important clues which may help in unravelling the mystery of the origin of cosmic rays.

The corresponding paper is published in Physical Review Letters:
Phys. Rev. Lett. 132, 051002 (2024) - Evidence of a Hardening in the Cosmic Ray Proton Spectrum at around 166 TeV Observed by the GRAPES-3 Experiment (aps.org) [1]

Some popular articles on the discovery:
A new kink in proton spectrum to enhance our knowledge of cosmic ray origin (phys.org) [2]
A new kink in proton spectrum will enhance ou | EurekAlert! [3]
A new kink in proton spectrum will enhance our knowledge of cosmic ray (scienmag.com) [4]
A new kink in proton spectrum to enhance our knowledge of cosmic ray origin - Tech and Science Post [5]
Proton Spectrum Kink Boosts Understanding of Cosmic Ray Origin | Mirage News [6]

Workshop on satellite based particle detector

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