KASCADE-Grande experiment measurements of the cosmic ray spectrum and large scale anisotropy

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• 作者：A. Chiavassa^c ; W.D. Apel^a ; J.C. Arteaga-Velá ; zquez^b ; K. Bekk^a ; M. Bertaina^c ; J. Blü ; mer^a ; ^d ; H. Bozdog^a ; I.M. Brancus^e ; E. Cantoni^c ; ^f ; F. Cossavella^d ; K. Daumiller^a ; V. de Souza^g ; F. Di Pierro^c ; P. Doll^a ; R. Engel^a ; D. Fuhrmann^h ; A. Gherghel-Lascu^e ; H.J. Gils^a ; R. Glasstetter^h ; C. Grupenⁱ ; A. Haungs^a ; D. Heck^a ; J.R. Hö ; randel^j ; D. Huber^d ; T. Huege^a ; K.-H. Kampert^h ; D. Kang^d ; H.O. Klages^a ; K. Link^d ; P. Łuczak^k ; H.J. Mathes^a ; H.J. Mayer^a ; J. Milke^a ; B. Mitrica^e ; C. Morello^f ; J. Oehlschlä ; ger^a ; S. Ostapchenko^l ; N. Palmieri^d ; T. Pierog^a ; H. Rebel^a ; M. Roth^a ; H. Schieler^a ; S. Schoo^a ; F.G. Schrö ; der^a ; O. Sima^m ; G. Toma^e ; G.C. Trinchero^f ; H. Ulrich^a ; A. Weindl^a ; J. Wochele^a
• 关键词：Cosmic Rays ; Extensive Air Showers ; Knee ; Spectra
• 刊名：Nuclear and Particle Physics Proceedings
• 出版年：2016
• 出版时间：October-December 2016
• 年：2016
• 卷：279-281
• 期：Complete
• 页码：56-62
• 全文大小：255 K

文摘

The KASCADE-Grande experiment operated at KIT from January 2004 to November 2012, measuring Extensive Air Showers (EAS) generated by primary cosmic rays in the 10¹⁶–10¹⁸eV${10}^{16}\text{–}{10}^{18}eV$ energy range. The experiment measured, for each single event, with a high resolution, the total number of charged particles (N_ch$N_{ch}$) and of muons (N_μ$N_{\mu }$).

In this contribution we summarize the results obtained about:

(i) the measurement of the all particle energy spectrum, discussing the influence of the hadronic interaction model used to derive the energy calibration of the experimental data.

(ii) The energy spectra derived separating the events according to the N_μ/N_ch$N_{\mu }/N_{ch}$ ratio. This technique allowed us to unveil a steepening of the spectrum of heavy primaries at E∼10^16.92±0.04eV$E\sim {10}^{16.92\pm 0.04}eV$ and a hardening of the spectrum of light primaries at E∼10^17.08±0.08eV$E\sim {10}^{17.08\pm 0.08}eV$.

(ii) A search for large scale anisotropies.