Energy Spectrum of Primary Cosmic Rays, According to TUNKA-133 and TAIGA-HiSCORE EAS Cherenkov Light Data

В В Просин ,M Popescu,I I Yashin,R Wischnewski,Yu Lemeshev,V Boreyko,D Horns,M I Panasyuk,M Tluczykont,C Spiering,R Mirzoyan,P A Bezyazeekov,L A Kuzmichev,A N Dyachok,А Загородников ,Р П Кокоулин ,В Л Зурбанов ,E.v Rjabov ,А А Лагутин ,А Пушнин ,А Порелли ,A Sidorenkov ,A Tkachenko ,В С Птускин ,М Куннас ,E Osipova ,N Gorbunov ,В А Кожин ,M Slunečka ,Vladimir Lenok ,К Г Компаниец ,L Pankov ,Е Постников ,A Grinyuk ,S Kiryuhin ,V Poleschuk ,В А Таболенко ,А В Скурихин ,V Grebenyuk ,P Kirilenko ,И И Астапов ,Т Гресс ,Б Лубсандоржиев ,D Zhurov ,Г Рубцов ,А Бородин ,O Gress ,Е А Кравченко ,Р Р Миргазов ,A Garmash ,Р Монхоев ,А Пахоруков ,А Чиавасса ,Н Буднев ,А Р Гафаров ,Р И Райкин ,А А Петрухин ,Л Свешникова ,А Силаев ,Oleg Fedorov ,Е Е Коростелева ,Н Лубсандоржиев ,B Tarashansky ,E Popova ,Martin Brueckner ,В Самолига ,Б М Сабиров ,О Гришин ,Л Ткачев ,В В Киндин ,A Sokolov ,Yu Semeney ,Н Н Калмыков ,Y Sagan ,Y Kazarina ,А Иванова

doi:10.3103/s1062873819080343

Abstract

The Tunka-133 Cherenkov complex for recording extensive air showers (EAS) collected data over seven winters from 2009 to 2017. The differential energy spectra of all particles was acquired in the 6 × 1015–3 × 1018 eV range of energies over 2175 h. The TAIGA-HiSCORE complex is continually being expanded and upgraded. Data acquired by 30 first-line stations over 35 days during the period 2017–2018 is analyzed in this work. As at the Tunka-133 setup, the primary particle energies above 1015 eV are measured using the density of the Cherenkov light flux at a distance of 200 m from a shower’s axis. Data on lower energies are collected by determining the energy of the light flux near a shower’s axis. This results in a spectrum of 2 × 1014–1017 eV. The combined spectrum for the two systems covers a range of 2 × 1014–2 × 1018 eV.

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