The Giant Radio Array for Neutrino Detection (GRAND): Present and Perspectives

Abstract : The Giant Radio Array for Neutrino Detection (GRAND) aims at detecting ultra-high energy extraterrestrial neutrinos via the extensive air showers induced by the decay of tau leptons created in the interaction of neutrinos under the Earth's surface. Consisting of an array of $\sim10^5$ radio antennas deployed over $\sim 2\times10^5\,\rm {km}^2$, GRAND plans to reach, for the first time, an all-flavor sensitivity of $\sim1.5\times10^{-10} \,\rm GeV\, cm^{-2} \,s^{-1}\, sr^{-1}$ above $5\times10^{17}$ eV and a sub-degree angular resolution, beyond the reach of other planned detectors. We describe here preliminary designs and simulation results, plans for the ongoing, staged approach to the construction of GRAND, and the rich research program made possible by GRAND's design sensitivity and angular resolution.
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Submitted on : Wednesday, October 24, 2018 - 12:27:45 PM
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Ke Fang, Jaime Álvarez-Muñiz, Rafael Alves Batista, Mauricio Bustamante, Washington Carvalho, et al.. The Giant Radio Array for Neutrino Detection (GRAND): Present and Perspectives. 35th International Cosmic Ray Conference, Jul 2017, Busan, South Korea. pp.996, ⟨10.22323/1.301.0996⟩. ⟨hal-01903408⟩



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