The primary energy spectrum derived from Linsley method with simulations of heavy compositions in the LAAS mini array observa
2016
The primary energy and its spectrum are obtained by using compact Extensive Air Shower (EAS) arrays, the apparatus for restricting the EAS zenith angle, and the Linsley method. In this work, we carried out the simulation and the data analysis by taking into account of proton and iron primaries. The primary spectral indices α(proton) and α(iron) are obtained as α(proton) = −2:47 ± 0:17 and α(iron) = −3:38 ± 0:25, respectively, in the single observation of a compact EAS array, in the primary energy region of 10 16 eV to 10 18:5 eV. Additionally, α(proton) = −3:12 ± 0:13 and α(iron) = −3:52 ± 0:17 are obtained with each composition in the synchronized observation between the compact EAS array and the apparatus for restricting the EAS zenith angle in the same primary energy region.
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