Nuclear composition of primary cosmic rays in the `knee' region according MSU EAS array data
Yu A Fomin; N N Kalmykov; G B Khristiansen; G V Kulikov; V I Nazarov; S S Ostapchenko; A I Pavlov; V I Solovjeva; V P Sulakov; A V Trubitsyn; E A Vishnevskaya; Yu A Fomin; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; N N Kalmykov; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; G B Khristiansen; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; G V Kulikov; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; V I Nazarov; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; S S Ostapchenko; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; A I Pavlov; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; V I Solovjeva; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; V P Sulakov; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; A V Trubitsyn; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia; E A Vishnevskaya; Institute of Nuclear Physics Moscow State University, Moscow 119899, Russia
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1996-12-01
Аннотация:
Experimental data on the EAS muon number fluctuations obtained with the Moscow State University EAS array are analysed to derive the primary mass composition at energies before and after the knee. The mass composition before the knee ( eV) corresponds to that measured by direct methods, while the mass composition after the knee ( eV) is enriched by heavy nuclei.
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