arXiv subjects

E. A. Kanevskaya

Publications and source records attributed to E. A. Kanevskaya.

3 recordsLinked to original sources

arXiv2018

Proton Fraction in PCR Mass Composition at Energies of 10^15-10^17 eV (Experiment «Pamir»)

The fraction of halo events among gamma-hadron families with SUM(Egamma) > 500 TeV is analyzed. The comparison of experimental data and Monte-Carlo simulations by MC0 code of quark-gluon string model under various assumptions on the PCR mass composition suggests a slowly increasing contribution of nuclei heavier than protons and alpha-particles to PCR mass composition. Effective atomic number of PCR particles changes in the energy interval 10^15-10^17 eV so that lnA grows from 2 to 2.5.

astro-ph.HE↗

arXiv2018

The Protons in Primary Cosmic Rays in the Energy Range 10^15-10^17 eV According to Data from the PAMIR Experiment

Adjusted data on the fraction of protons in the mass composition of primary cosmic rays (PCRs) in the energy range of 10^15-10^17 eV are presented. Adjustments are made according to detailed calculations of the response of the X-ray emulsion chamber in the PAMIR experiment. It is demonstrated that the fraction of protons in a PCR is 16-18% for E0 = 10^15-10^16 eV and does not change within the error for E0 = 10^16-10^17 eV.

astro-ph.HE↗

arXiv2018

Revised data on gamma-families observed in X-ray emulsion chambers of the Experiment PAMIR

Recently essential efforts were made to improve measurement routine with X-ray films exposed in the X-ray emulsion chambers at the Pamirs. Analysis of X-ray emulsion response upon recorded events show that gamma-family energy and intensity in early publications were over estimated. The main physical results of the new analysis are presented.

hep-ex↗