Search arXivSearch

arXiv · 2308.00120

The Giant Radio Array for Neutrino Detection (GRAND) Collaboration -- Contributions to the 38th International Cosmic Ray Conference (ICRC 2023)

GRAND Collaboration·Rafael Alves Batista·Aurélien Benoit-Lévy·Teresa Bister·Mauricio Bustamante·Yiren Chen·LingMei Cheng·Simon Chiche·Jean-Marc Colley·Pablo Correa·Nicoleta Cucu Laurenciu·Zigao Dai·Beatriz de Errico·Sijbrand de Jong·João R. T. de Mello Neto·Krijn D. de Vries·Peter B. Denton·Valentin Decoene·Kaikai Duan·Bohao Duan·Ralph Engel·Yizhong Fan·Arsène Ferrière·QuanBu Gou·Junhua Gu·Marion Guelfand·Jianhua Guo·Yiqing Guo·Vaidhai Gupta·Claire Guépin·Lukas Gülzow·Andreas Haungs·Haoning He·Eric Hivon·Hongbo Hu·Xiaoyuan Huang·Yan Huang·Tim Huege·Wen Jiang·Ramesh Koirala·Kumiko Kotera·Jelena Köhler·Bruno L. Lago·Sandra Le Coz·François Legrand·Antonios Leisos·Rui Li·Cheng Liu·Ruoyu Liu·Wei Liu·Pengxiong Ma·Oscar Macias·Frédéric Magnard·Olivier Martineau-Huynh·Ananstasiia Mikhno·Pragati Mitra·Miguel Mostafá·Fabrice Mottez·Jean Mouette·Kohta Murase·Valentin Niess·Stavros Nonis·Shoichi Ogio·Foteini Oikonomou·Tanguy Pierog·Lech Wiktor Piotrowski·Pierre Poisvert·Simon Prunet·Xiangli Qian·Markus Roth·Takashi Sako·Harm Schoorlemmer·Bart Steeman·Dániel Szálas-Motesiczky·Szymon Sławiński·Anne Timmermans·Charles Timmermans·Apostolos Tsirigotis·Matías Tueros·Shen Wang·Xiangyu Wang·Xu Wang·Daming Wei·Feng Wei·Xiangping Wu·Xuefeng Wu·Xin Xu·Xing Xu·Lili Yang·Xuan Yang·Qiang Yuan·Philippe Zarka·Houdun Zeng·Chao Zhang·Jianli Zhang·Kewen Zhang·Pengfei Zhang·Songbo Zhang·Hao Zhou

Abstract

The Giant Radio Array for Neutrino Detection (GRAND) is an envisioned observatory of ultra-high-energy particles of cosmic origin, with energies in excess of 100 PeV. GRAND uses large surface arrays of autonomous radio-detection units to look for the radio emission from extensive air showers that are triggered by the interaction of ultra-high-energy cosmic rays, gamma rays, and neutrinos in the atmosphere or underground. In particular, for ultra-high-energy neutrinos, the future final phase of GRAND aims to be sensitive enough to discover them in spite of their plausibly tiny flux. Presently, three prototype GRAND radio arrays are in operation: GRANDProto300, in China, GRAND@Auger, in Argentina, and GRAND@Nancay, in France. Their goals are to field-test the design of the radio-detection units, understand the radio background to which they are exposed, and develop tools for diagnostic, data gathering, and data analysis. This list of contributions to the 38th International Cosmic Ray Conference (ICRC 2023) presents an overview of GRAND, in its present and future incarnations, and a look at the first data collected by GRANDProto13, the first phase of GRANDProto300.

Explore related subjects

Keep this discovery

BibTeXRIS

GRAND Collaboration, Rafael Alves Batista, Aurélien Benoit-Lévy, Teresa Bister, Mauricio Bustamante, Yiren Chen, LingMei Cheng, Simon Chiche, Jean-Marc Colley, Pablo Correa, Nicoleta Cucu Laurenciu, Zigao Dai, Beatriz de Errico, Sijbrand de Jong, João R. T. de Mello Neto, Krijn D. de Vries, Peter B. Denton, Valentin Decoene, Kaikai Duan, Bohao Duan, Ralph Engel, Yizhong Fan, Arsène Ferrière, QuanBu Gou, Junhua Gu, Marion Guelfand, Jianhua Guo, Yiqing Guo, Vaidhai Gupta, Claire Guépin, Lukas Gülzow, Andreas Haungs, Haoning He, Eric Hivon, Hongbo Hu, Xiaoyuan Huang, Yan Huang, Tim Huege, Wen Jiang, Ramesh Koirala, Kumiko Kotera, Jelena Köhler, Bruno L. Lago, Sandra Le Coz, François Legrand, Antonios Leisos, Rui Li, Cheng Liu, Ruoyu Liu, Wei Liu, Pengxiong Ma, Oscar Macias, Frédéric Magnard, Olivier Martineau-Huynh, Ananstasiia Mikhno, Pragati Mitra, Miguel Mostafá, Fabrice Mottez, Jean Mouette, Kohta Murase, Valentin Niess, Stavros Nonis, Shoichi Ogio, Foteini Oikonomou, Tanguy Pierog, Lech Wiktor Piotrowski, Pierre Poisvert, Simon Prunet, Xiangli Qian, Markus Roth, Takashi Sako, Harm Schoorlemmer, Bart Steeman, Dániel Szálas-Motesiczky, Szymon Sławiński, Anne Timmermans, Charles Timmermans, Apostolos Tsirigotis, Matías Tueros, Shen Wang, Xiangyu Wang, Xu Wang, Daming Wei, Feng Wei, Xiangping Wu, Xuefeng Wu, Xin Xu, Xing Xu, Lili Yang, Xuan Yang, Qiang Yuan, Philippe Zarka, Houdun Zeng, Chao Zhang, Jianli Zhang, Kewen Zhang, Pengfei Zhang, Songbo Zhang, Hao Zhou. 2023-07-27. The Giant Radio Array for Neutrino Detection (GRAND) Collaboration -- Contributions to the 38th International Cosmic Ray Conference (ICRC 2023). https://arxiv.org/abs/2308.00120

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

Production of Light Nuclei and Hypernuclei in Heavy-Ion Collisions

We review recent STAR and ALICE measurements of light-nucleus and hypernucleus yields, femtoscopic correlations, and collective flow presented at SQM 2026. Statistical-hadronization calculations provide a useful baseline for integrated yields but do not simultaneously describe all measured light-nucleus ratios across collision energies and system sizes. For bound states with mass number $A<4$, current coalescence calculations provide a broadly consistent description of yields, femtoscopic correlations, and collective flow, although the quantitative hypertriton comparison depends on the assumed few-body wave function. The suppressed production of resonant $^{4}$Li relative to compact $^{4}$He indicates an effect of nuclear structure and late-stage dynamics. However, the quantitative model comparison also depends on the treatment of feed-down from unstable states. In high-multiplicity $p$+$p$ collisions, pion-deuteron femtoscopy further indicates that most observed (anti)deuterons are formed through nucleon fusion after strong decays of short-lived resonances. Taken together, these measurements show that production chronology and internal nuclear structure leave measurable imprints on the physics observables.

hep-ex

Search for the process $e^+e^-\to f_1(1285)$ at the SND detector

In the experiment with the SND detector at the VEPP-2000 $e^+e^-$ collider, a search is performed for the direct production of the $C$-even $f_1(1285)$ resonance in $e^+e^-$ collisions. The analysis is based on data with an integrated luminosity of about 200 pb$^{-1}$, accumulated in the center-of-mass energy range of 1.14--1.46 GeV, of which about 72 pb$^{-1}$ were recorded near the maximum of the $f_1(1285)$ resonance. The $f_1(1285)$ production cross section at the resonance maximum $\sigma(e^+e^-\to f_1)=(31\pm 13\pm 2)$ pb and the branching fraction $B(f_1(1285)\to e^+e^-)=(3.5\pm 1.4\pm 0.3)\times 10^{-9}$ have been measured. The significance of the observation of the $e^+e^-\to f_1(1285)$ process is $2.5\sigma$. Since the significance is low, we also present the upper limits at the 90% confidence level: $\sigma(e^+e^-\to f_1)<48\mbox{ pb}$ and $B(f_1(1285)\to e^+e^-)<5.4\times 10^{-9}$.

hep-ex

Projected Sensitivity to Slow Muonphilic Dark Matter with Accelerator Muon Beams

The nature of dark matter (DM) remains one of the most enduring open questions in modern physics, and muonphilic DM has emerged as a promising scenario that complements traditional DM candidates. Following the recently established cosmic-ray muon scattering approach, we investigate the sensitivity for probing slow muonphilic DM with accelerator muon beams. A Geant4-based simulation framework is developed, incorporating the detector geometry from the PKMu muon tomography system and a dedicated elastic $\mu$-DM scattering process. The projected sensitivity is found to be largely insensitive to both the beam energy and the transverse beam size when the beam is fully contained within the detector acceptance. For a benchmark beam intensity of $10^5/\rm{s}$, the simulated pure-muon beam surpasses the existing cosmic-ray limit of $1.61\times10^{-17}$ cm$^2$ at $m_{\rm DM}=1$ GeV within approximately 11 seconds. A realistic muon beam phase-space distribution based on simulations for the High Intensity heavy-ion Accelerator Facility (HIAF) is also implemented, yielding projected limits that improve upon the cosmic-ray results by nearly two orders of magnitude in a one-day exposure. These results demonstrate that a beam-muon scattering experiment offers a robust and promising route toward significantly improved sensitivity to slow muonphilic DM.

hep-ex