Direct comparison of PEN and TPB wavelength shifters in a liquid argon detector M. G. Boulay, V. Camillo, N. Canci, S. Choudhary, L. Consiglio, A. Flammini, C. Galbiati, C. Ghiano, A. Gola, S. Horikawa et al. (19 more) Eur. Phys. J. C, 81 12 (2021) 1099 Published online: 13 December 2021 DOI: 10.1140/epjc/s10052-021-09870-7