Observation of the May 2024 Forbush event with the EEE detectors operated with an eco-friendly gas mixture

The European Physical Journal Plus 2026 Open access

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Authors: M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, M. Battaglieri, S. Boi, E. Bossini, F. Carnesecchi, D. Cavazza, C. Cicalò, L. Cifarelli
+55 more F. Coccetti, E. Coccia, A. Corvaglia, A. De Caro, D. De Gruttola, S. De Pasquale, L. Galante, M. Garbini, L. E. Ghezzer, I. Gnesi, F. Gramegna, S. Grazzi, D. Hatzifotiadou, P. La Rocca, Z. Liu, G. Mandaglio, A. Margotti, G. Maron, M N Mazziotta, A. Mulliri, R. Nania, F. Noferini, F. Nozzoli, Francesco Palmonari, M. Panareo, M. P. Panetta, R. Paoletti, C. Pellegrino, L Perasso, O. Pinazza, C. Pinto, S. Pisano, L. Quaglia, M. Rasa, F. Riggi, G. Righini, C. Ripoli, M. Rizzi, B. Sabiu, G. Sartorelli, E. Scapparone, M. Schioppa, G. Scioli, A. Scribano, M. Selvi, A. Shtimmerman, M. Taiuti, G. Terreni, A. Trifirò, M. TRIMARCHI, C. Vistoli, L. Votano, M.C.S. Williams, A. Zichichi, R. Zuyeuski
DOI: 10.1140/epjp/s13360-026-07922-z
Cited by: 1
References: 13

Abstract

Abstract The Extreme Energy Events Project (EEE) is devoted to studying cosmic-ray fluxes using a large network of measuring stations equipped with Multigap Resistive Plate Chambers (MRPCs) and positioned across Italy, mainly inside high-school institutes. This paper presents the first measurements obtained operating the MRPCs with an eco-friendly gas mixture, namely the observation of the charged cosmic-ray rate variation (Forbush decrease) associated with the intense geomagnetic storm that occurred in May 2024. It is the first time a large-scale experiment has been successfully operated with a new eco-friendly gas mixture, keeping its physics performance substantially unchanged.

Fields of Study & Subjects

Astrophysics and Cosmic Phenomena Ionosphere and magnetosphere dynamics Solar and Space Plasma Dynamics

Publication details

Journal / source
The European Physical Journal Plus
Publisher
Springer Science and Business Media LLC
Volume
141
Issue
7
Publication date
9 July 2026
Language
EN