arxiv: 1203.3971 · v1 · pith:HF7G72WQnew · submitted 2012-03-18 · 🌌 astro-ph.IM · astro-ph.HE

Experimental evidence for the sensitivity of the air-shower radio signal to the longitudinal shower development

W.D. Apel , J.C. Arteaga , L. B\"ahren , K. Bekk , M. Bertaina , P.L. Biermann , J. Bl\"umer , H. Bozdog

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I.M. Brancus P. Buchholz E. Cantoni A. Chiavassa K. Daumiller V. de Souza F. Di Pierro P. Doll R. Engel H. Falcke M. Finger B. Fuchs D. Fuhrmann H. Gemmeke C. Grupen A. Haungs D. Heck J.R. H\"orandel A. Horneffer D. Huber T. Huege P.G. Isar K.-H. Kampert D. Kang O. Kr\"omer J. Kuijpers K. Link P. Luczak M. Ludwig H.J. Mathes M. Melissas C. Morello J. Oehlschl\"ager N. Palmieri T. Pierog J. Rautenberg H. Rebel M. Roth C. R\"uhle A. Saftoiu H. Schieler A. Schmidt F.G. Schr\"oder O. Sima G. Toma G.C. Trinchero A. Weindl J. Wochele M. Wommer J. Zabierowski J.A. Zensus (LOPES Collaboration)

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keywords radiodevelopmentdistributionslaterallongitudinalair-showerair-showersarray

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We observe a correlation between the slope of radio lateral distributions, and the mean muon pseudorapidity of 59 individual cosmic-ray-air-shower events. The radio lateral distributions are measured with LOPES, a digital radio interferometer co-located with the multi-detector-air-shower array KASCADE-Grande, which includes a muon-tracking detector. The result proves experimentally that radio measurements are sensitive to the longitudinal development of cosmic-ray air-showers. This is one of the main prerequisites for using radio arrays for ultra-high-energy particle physics and astrophysics.

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Experimental evidence for the sensitivity of the air-shower radio signal to the longitudinal shower development

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