12-20 July 2017
BEXCO
Asia/Seoul timezone
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Contribution

BEXCO - Room B(103/104/105)

[CRI187] EAS radio detection with the GRANDproto

Speakers

  • Quanbu GOU

Primary authors

  • Quanbu GOU (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China)

Co-authors

  • Olivier MARTINEAU-HUYNH (LPNHE, CNRS-IN2P3 and Universités Paris VI & VII, 4 place Jussieu, 75252 Paris, France)
  • Junhua GU (National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, China)
  • Hongbo HU (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China)
  • Clementina MEDINA (Instituto Argentino de Radioastronomia, CONICET, La Plata, Argentina)
  • Didier CHARRIER (SUBATECH, IN2P3-CNRS, Université de Nantes, Ecole des Mines de Nantes, Nantes, France)
  • Matías TUEROS (Instituto de Fisica La Plata, CONICET, La Plata, Argentina)
  • Mauricio BUSTAMANTE (Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, OH 43210, USA)
  • sandra LECOZ (National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, China)
  • Charles TIMMERMANS (SUBATECH, IN2P3-CNRS, Université de Nantes, Ecole des Mines de Nantes, Nantes, France)
  • Anne ZILLES (Sorbonne Universités, UPMC Univ. Paris 6 et CNRS, UMR 7095, Institut d’Astrophysique de Paris, 98 bis bd Arago, 75014 Paris)
  • Krijn De VRIES (Vrije Universiteit Brussel, Dienst ELEM, 1050 Brussels, Belgium)
  • Washington CARVALHO JR. (Physics Institute, University of São Paulo, Brazil)
  • Sijbrand DE JONG (Radboud University Nijmegen, Heyendaalseweg 135,6525 AJ Nijmegen, The Netherlands and Nikhef, Science Park 105, 1098 XG Amste)
  • Kumiko KOTERA (Institut d'Astrophysique de Paris, Sorbonne Universités, UPMC Univ. Paris 6 and CNRS, UMR 7095, 98 bis bd Arago, 75014 Pa)
  • Ke FANG (Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA)
  • Valentin NIESS (Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de Physique Corpusculaire, BP. 10448, 63000 Clermond-F)
  • yi ZHANG (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China)
  • Xiang-Ping WU (National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, China)
  • Zhen WANG (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China)

Description

As the flux of ultra-high-energy cosmic-rays (UHECR) is very low, detectors with a large effective area and high duty cycle are needed. Radio detection of extensive air showers (EAS) presents attractive aspects for future experiments, with very low cost per detector unit, easiness of deployment over large areas and close to 100% duty cycle. More research and development on radio detection is ongoing and will make large-scale use feasible. The Sino-French cooperation experiment TREND (Tianshan Radio Experiment for Neutrino Detection) has performed autonomous detection and identification of EAS with a stand-alone, self-triggered array of 50 radio antennas. Inspired by this, the Giant Radio Array for Neutrino Detection (GRAND) project is planned, which consists of an array of ~10^5 radio antennas deployed over ~200000 km^2 in a mountainous site. The GRANDproto experiment aims at bridging the gap between these two projects, by demonstrating that radio-detection of air showers can be performed with very good background rejection, high efficiency and an almost 100% duty cycle. GRANDproto will for instance investigate how polarization characteristics of the radio emission from air showers can be used to reject background signals by using 35 antennas that measure the x, y and z components of the electric field. An array of 21 scintillators will allow an offline cross-check of the nature of the selected radio-candidates. We detail here the principle, progress and prospects of the GRANDproto experiment.