Investigation of anomalous effects in cosmic rays.

8 Jun 2021, 13:40
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Overview Multicomponent EAS investigations Multicomponent EAS investigations


Prof. Sergey Shaulov (LPI RAS)


Studying the spectrum of secondary particles at the Large Hadron Collider (LHC) at energies equivalent to 1-100 PeV in the laboratory system, scaling behavior is observed. At the same energies, a number of effects are observed in cosmic rays (CR) that are incompatible with this behavior. In the spectrum of extensive atmospher showers (EAS), a break (knee) is observed at an energy of 3 PeV. According to the large ionization calorimeter at the Tien Shan, the absorption length of hadron showers increases in the same energy region. In the hybrid HADRON experiment, there is a scaling violation in the spectrum of secondary hadrons and an anomalous excess of muons in proton showers. According to the data of X-ray emulsion chambers , events with halos appear in the knee area and effect of alinement in energy centers of gamma-hadron events are observed.. Given the LHC data, these anomalies should be explained by astrophysical reasons, i.e. changes in the composition of cosmic rays.

Primary author

Prof. Sergey Shaulov (LPI RAS)

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