Cosmic Ray Mass Measurements with LOFAR

Stijn Buitink, Antonio Bonardi, Arthur Corstanje, J. Emilio Enriquez, Heino Falcke, Jörg R. Hörandel, Pragati Mitra, Katie Mulrey, Anna Nelles, Jörg Paul Rachen, Laura Rossetto, Pim Schellart, Olaf Scholten, Satyendra Thoudam, Gia Trinh, Sander Ter Veen, Tobias Winchen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In the dense core of LOFAR individual air showers are detected by hundreds of dipole antennas simultaneously. We reconstruct Xmax by using a hybrid technique that combines a two-dimensional fit of the radio profile to CoREAS simulations and a one-dimensional fit of the particle density distribution. For high-quality detections, the statistical uncertainty on Xmax is smaller than 20 g/cm2. We present results of cosmic-ray mass analysis in the energy regime of 1017 - 1017.5 eV. This range is of particular interest as it may harbor the transition from a Galactic to an extragalactic origin of cosmic rays.

Original languageBritish English
Title of host publication7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
EditorsJorg R. Horandel, Robert Lahmann, Olaf Scholten, Sijbrand De Jong, Rolf Nahnhauer, Stijn Buitink
PublisherEDP Sciences
ISBN (Electronic)9782759890156
DOIs
StatePublished - 15 Mar 2017
Event7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016 - Groningen, Netherlands
Duration: 7 Jun 201610 Jun 2016

Publication series

NameEPJ Web of Conferences
Volume135
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
Country/TerritoryNetherlands
CityGroningen
Period7/06/1610/06/16

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