The Giant Radio Array for Neutrino Detection (GRAND): Science and design

Jaime Álvarez-Muñiz, Rafael Alves Batista, Aswathi Balagopal V, Julien Bolmont, Mauricio Bustamante, Washington Carvalho, Didier Charrier, Ismaël Cognard, Valentin Decoene, Peter B. Denton, Sijbrand De Jong, Krijn D. De Vries, Ralph Engel, Ke Fang, Chad Finley, Stefano Gabici, Quan Bu Gou, Jun Hua Gu, Claire Guépin, Hong Bo HuYan Huang, Kumiko Kotera, Sandra Le Coz, Jean Philippe Lenain, Guo Liang Lü, Olivier Martineau-Huynh, Miguel Mostafá, Fabrice Mottez, Kohta Murase, Valentin Niess, Foteini Oikonomou, Tanguy Pierog, Xiang Li Qian, Bo Qin, Duan Ran, Nicolas Renault-Tinacci, Markus Roth, Frank G. Schröder, Fabian Schüssler, Cyril Tasse, Charles Timmermans, Matías Tueros, Xiang Ping Wu, Philippe Zarka, Andreas Zech, B. Theodore Zhang, Jian Li Zhang, Yi Zhang, Qian Zheng, Anne Zilles

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Abstract

The Giant Radio Array for Neutrino Detection (GRAND) is a planned large-scale observatory of ultra-high-energy (UHE) cosmic particles, with energies exceeding 108 GeV. Its goal is to solve the long-standing mystery of the origin of UHE cosmic rays. To do this, GRAND will detect an unprecedented number of UHE cosmic rays and search for the undiscovered UHE neutrinos and gamma rays associated to them with unmatched sensitivity. GRAND will use large arrays of antennas to detect the radio emission coming from extensive air showers initiated by UHE particles in the atmosphere. Its design is modular: 20 separate, independent sub-arrays, each of 10000 radio antennas deployed over 10000 km2. A staged construction plan will validate key detection techniques while achieving important science goals early. Here we present the science goals, detection strategy, preliminary design, performance goals, and construction plans for GRAND.

Original languageEnglish (US)
Article number219501
JournalScience China: Physics, Mechanics and Astronomy
Volume63
Issue number1
DOIs
StatePublished - Jan 1 2020

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Álvarez-Muñiz, J., Alves Batista, R., Balagopal V, A., Bolmont, J., Bustamante, M., Carvalho, W., Charrier, D., Cognard, I., Decoene, V., Denton, P. B., De Jong, S., De Vries, K. D., Engel, R., Fang, K., Finley, C., Gabici, S., Gou, Q. B., Gu, J. H., Guépin, C., ... Zilles, A. (2020). The Giant Radio Array for Neutrino Detection (GRAND): Science and design. Science China: Physics, Mechanics and Astronomy, 63(1), [219501]. https://doi.org/10.1007/s11433-018-9385-7