Extensive air showers measured by the KASCADE-Grande experiment at the Forschungszentrum Karlsruhe are studied with respect to the arrival times of electrons and muons at observation level. The mean and the spread of the arrival time distributions have been used to determine the average time profile of the electromagnetic and muonic shower disk. For core distances R > 200 m particles of the muonic shower component arrive on average earlier at observation level than particles of the electromagnetic shower component. The difference increases with the core distance from Delta < t > = (12.9 +/- 0.2) ns at R > 200 m to Delta < t > = (47 +/- 1) ns at R = 500 m, where the width of the muonic and electromagnetic shower disks are comparable. This difference in arrival time is used to separate the electrons and muons dependent on the distance from the shower center. This is intended to be used by experiments with time resolving detectors. (C) 2008 Published by Elsevier B.V.

Time structure of the EAS electron and muon components measured by the KASCADE-Grande experiment

BERTAINA, Mario Edoardo;CHIAVASSA, Andrea;NAVARRA, Gianni Maria;
2008-01-01

Abstract

Extensive air showers measured by the KASCADE-Grande experiment at the Forschungszentrum Karlsruhe are studied with respect to the arrival times of electrons and muons at observation level. The mean and the spread of the arrival time distributions have been used to determine the average time profile of the electromagnetic and muonic shower disk. For core distances R > 200 m particles of the muonic shower component arrive on average earlier at observation level than particles of the electromagnetic shower component. The difference increases with the core distance from Delta < t > = (12.9 +/- 0.2) ns at R > 200 m to Delta < t > = (47 +/- 1) ns at R = 500 m, where the width of the muonic and electromagnetic shower disks are comparable. This difference in arrival time is used to separate the electrons and muons dependent on the distance from the shower center. This is intended to be used by experiments with time resolving detectors. (C) 2008 Published by Elsevier B.V.
2008
29
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W. D. Apel; J. C. Arteaga; A. F. Badea; K. Bekk; M. Bertaina; J. Blumer; H. Bozdog; I. M. Brancus; M. Bruggemann; P. Buchholz; E. Cantoni; A. Chiavassa; F. Cossavella; K. Daumiller; V. de Souza; F. Di Pierro; P. Doll; R. Engel; J. Engler; M. Finger; D. Fuhrmann; P. L. Ghia; H. J. Gils; R. Glasstetter; C. Grupen; A. Haungs; D. Heck; J. R. Horandel; T. Huege; P. G. Isar; K. H. Kampert; D. Kickelbick; H. O. Klages; Y. Kolotaev; P. Luczak; H. J. Mathes; H. J. Mayer; C. Meurer; J. Milke; B. Mitrica; C. Morello; G. Navarra; S. Nehls; J. Oehlschlager; S. Ostapchenko; S. Over; M. Petcu; T. Pierog; S. Plewnia; H. Rebel; M. Roth; H. Schieler; O. Sima; M. Stumpert; G. Toma; G. C. Trinchero; H. Ulrich; J. van Buren; W. Walkowiak; A. Weindl; J. Wochele; J. Zabierowski
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/44404
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