Constraints on the flux of primary cosmic-ray photons at energies E > 10¹8 eV from Yakutsk muon data

Glushkov, A. V.; Makarov, I. T.; Pravdin, M. I.; Sleptsov, I. E.; Gorbunov, D. S.; Rubtsov, G. I.; Troitsky, S. V.

doi:10.1103/PhysRevD.82.041101

arXiv 2009-07-02 DOI 10.1103/PhysRevD.82.041101 0 مشاهدة

Constraints on the flux of primary cosmic-ray photons at energies E > 10¹8 eV from Yakutsk muon data

Glushkov, A. V. · Makarov, I. T. · Pravdin, M. I. · Sleptsov, I. E. · Gorbunov, D. S. · Rubtsov, G. I. · Troitsky, S. V.

High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

الأصل · EN

Comparing the signals measured by the surface and underground scintillator detectors of the Yakutsk Extensive Air Shower Array, we place upper limits on the integral flux and the fraction of primary cosmic-ray photons with energies E > 10¹8 eV, E > 2*10¹8 eV and E > 4*10¹8 eV. The large collected statistics of the showers measured by large-area muon detectors provides a sensitivity to photon fractions < 10-2, thus achieving precision previously unreachable at ultra-high energies.

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