Cosmic ray measurements using charge and light readout in a pixelated liquid argon time projection chamber

Journal of Instrumentation 2026 Open access

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Authors: N. Anfimov, A. Branca, J. Bürgi, L. Calivers, P. Carniti, E. Calvo, E. Cristaldo, C. Cuesta, F. Declich, R. Diurba, P. Dunne, D.A. Dwyer
+30 more J. Evans, A.C. Ezeribe, A. Gauch, I. Gil-Botella, C. Gotti, S. Greenberg, D. Guffanti, A. Karcher, J. Kunzmann, N. Lane, S. Manthey Corchado, N. McConkey, A. Minotti, A. Navrer-Agasson, S. Parsa, G. Pessina, G. Ruiz Ferreira, B. Russell, S. Söldner-Rembold, A.M. Szelc, A. Tapper, F. Terranova, C. Tognina, D. Trotta, S. Tufanli, H. Vieira de Souza, G. Vitti Stenico, A. Verdugo, M. Weber, I. Xiotidis
DOI: 10.1088/1748-0221/21/04/p04008
Cited by: 1
References: 27

Abstract

Abstract Liquid argon time projection chambers have emerged as a competitive technology for detecting solar neutrinos. The SoLAr collaboration was formed to explore argon detectors with pixelated light and charge readout, aiming for high detection efficiency and improved energy resolution. Building on the success of an initial prototype, we present results obtained with a second SoLAr prototype (V2), a 30 × 30 × 30 cm 3 time projection chamber operated in a cryostat containing several hundred kilograms of liquid argon. We report measurements of cosmic-ray muons using both tracking and calorimetry from light and charge sensors, and we highlight the improved performance achieved through combined charge and light reconstruction. These results demonstrate the promise of dual-readout detectors and motivate future prototyping efforts toward kiloton-scale facilities.

Fields of Study & Subjects

Dark Matter and Cosmic Phenomena Neutrino Physics Research Particle Detector Development and Performance

Publication details

Journal / source
Journal of Instrumentation
Publisher
IOP Publishing
Volume
21
Issue
04
Pages
P04008–P04008
Publication date
1 April 2026
Language
EN