Cosmic Ray Measurements Using Charge and Light Readout in a Pixelated Liquid Argon Time Projection Chamber
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 cm 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.
Cite
@article{arxiv.2512.10830,
title = {Cosmic Ray Measurements Using Charge and Light Readout in a Pixelated Liquid Argon Time Projection Chamber},
author = {SoLAr Collaboration and N. Anfimov and A. Branca and J. Bürgi and L. Calivers and P. Carniti and E. Calvo and E. Cristaldo and C. Cuesta and F. Declich and R. Diurba and P. Dunne and D. A. Dwyer and J. Evans and A. C. Ezeribe and A. Gauch and I. Gil-Botella and C. Gotti and S. Greenberg and D. Guffanti and A. Karcher and J. Kunzmann and N. Lane and S. Manthey Corchado and N. McConkey and A. Minotti and A. Navrer-Agasson and S. Parsa and G. Pessina and G. Ruiz Ferreira and B. Russell and S. Söldner-Rembold and A. M. Szelc and A. Tapper and F. Terranova and C. Tognina and D. Trotta and S. Tufanli and H. Vieira de Souza and G. Vitti Stenico and A. Verdugo and M. Weber and I. Xiotidis},
journal= {arXiv preprint arXiv:2512.10830},
year = {2025}
}