KASCADE measurements of energy spectra for elemental groups of cosmic rays:: Results and open problems

被引：447

作者：

Antoni, T ^{[1
]}

Apel, WD

Badea, AF

Bekk, K

Bercuci, A

Blümer, J

Bozdog, H

Brancus, IM

Chilingarian, A

Daumiller, K

Doll, P

Engel, R

Engler, J

Fessler, F

Gils, HJ

Glasstetter, R

Haungs, A

Heck, D

Hörandel, JR

Kampert, KH

Klages, HO

Maier, G

Mathes, HJ

Mayer, HJ

Milke, J

Müller, M

Obenland, R

Oehlschläger, J

Ostapchenko, S

Petcu, M

Rebel, H

Risse, A

Risse, M

Roth, M

Schatz, G

Schieler, H

Scholz, J

Thouw, T

Ulrich, H

van Buren, J

Vardanyan, A

Weindl, A

Wochele, J

Zabierowski, J

机构：

[1] Univ Karlsruhe, Inst Expt Kernphys, D-76021 Karlsruhe, Germany

[2] Forschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany

[3] Natl Inst Phys & Nucl Engn, Bucharest 7690, Romania

[4] Yerevan Phys Inst, Cosm Ray Div, Yerevan 36, Armenia

[5] Soltan Inst Nucl Studies, PL-90950 Lodz, Poland

来源：

ASTROPARTICLE PHYSICS | 2005年 / 24卷 / 1-2期

关键词：

D O I：

10.1016/j.astropartphys.2005.04.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A composition analysis of KASCADE air shower data is performed by means of unfolding the two-dimensional frequency spectrum of electron and muon numbers. Aim of the analysis is the determination of energy spectra for elemental groups representing the chemical composition of primary cosmic rays. Since such an analysis depends crucially on simulations of air showers the two different hadronic interaction models QGSJet and SIBYLL are used for their generation. The resulting primary energy spectra show that the knee in the all particle spectrum is due to a steepening of the spectra of light elements but, also, that neither of the two simulation sets is able to describe the measured data consistently over the whole energy range with discrepancies appearing in different energy regions. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1 / 25

页数：25