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Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

2016-06-14Journal article Open access
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dc.contributor.authorPierre Auger collaboration (449 authors)
dc.contributor.authorAbreu, Pedro
dc.contributor.authorAndringa, Sofia
dc.contributor.authorAssis, Pedro
dc.contributor.authorBlanco, Alberto
dc.contributor.authorBrogueira, Pedro
dc.contributor.authorCazon, Lorenzo
dc.contributor.authorConceição, Ruben
dc.contributor.authorDiogo, Francisco
dc.contributor.authorEspadanal, Joao
dc.contributor.authorLopes, Luis
dc.contributor.authorPimenta, Mário
dc.contributor.authorSantos, Eva
dc.contributor.authorSarmento, Raul
dc.contributor.authorTomé, Bernardo
dc.date.accessioned2019-02-04T09:54:31Z
dc.date.available2019-02-04T09:54:31Z
dc.date.issued2016-06-14
dc.date.updated2019-02-04T09:54:31Z
dc.description.abstractWe measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst)  MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.
dc.description.versionPeer Reviewed
dc.identifierPhys.Rev.Lett. 116 (2016) 241101; DOI 10.1103/PhysRevLett.116.241101
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.116.241101
dc.identifier.urihttp://hdl.handle.net/10400.26/27081
dc.language.isoeng
dc.titleMeasurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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