DOE OSTI · 3342904
The ePIC dual-radiator RICH detector
Abstract
The dual radiator Ring Imaging Cherenkov (dRICH) detector is required to provide continuous hadron identification from ≈3 GeV/c up to ≈50 GeV/c, and to supplement electron and positron identification from a few hundred MeV/c up to about 15 GeV/c, in the forward (ion-side) end-cap of the ePIC experiment. Such an extended momentum range imposes the use of two radiators, gas and aerogel. The common imaging system, that ensures compactness and cost-effectiveness, is based on SiPM sensors to work in a high non-uniform magnetic field. During the R&D phase, the dual radiator principle and the single component performance have been validated. A status overview of the project is presented. The design and technological choices are discussed together with the results obtained from laboratory characterization of the component demonstrators and beam tests of the evolving prototypes.
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Contalbrigo, M. [Istituto Nazionale di Fisica Nucleare (INFN), Ferrara (Italy); Electron-Proton/Ion Collider (ePIC) Collaboration. et al.] (ORCID:0000000286127998), Achari, B. R., Agarwala, J., Agrawal, N., Alexeev, M., Alice, C., Ammendola, R., Anjali, S., Antonioli, P., Baldanza, C., Barion, L., Bellini, F., Bhadauriya, R.S., Biagioni, A., Boasso, T., Bressan, A., Calivà, A., Capua, M., Capuani, F., Cavallina, M., Chatterjee, C., Chiosso, M., Ciardiello, A., Cicuttin, A., Cisbani, E., Cossio, F., Crespo, M.L., Torre, S. Dalla, Rolo, M. Da Rocha, Dasgupta, S.S., Caro, A. De, Gruttola, D. De, Bianco, L. Del, Dellacasa, G., Bari, D. Di, Eslinger, A., Evangelisti, F., Falchieri, D., Farokhi, F., Fazio, S., Ferrero, C., Forlani, A., Frezza, O., Funicello, N., Garbini, M., Ordòñez, L.G. Garcia, Geminiani, S., George, N., Ghosh, T., Giordano, D., Gramigna, S., Gregori, M., Bassi, A.V. Grossi, Hellstern, T., Jacazio, N., Jangid, R., Khuntia, A., Kiselev, Alexander (ORCID:0000000251245564), Kumar, R., Laishram, G., Lattuada, D., Lemon, T., Levorato, S., Liotino, R., Liu, A., Cicero, F. Lo, Lonardo, A., Malaguti, R., Mammoliti, F., Martin, A., Martinelli, M., Melchiorri, M., Mignone, M., Mingioni, C., Mohanty, B., Nagorna, T., Nappi, E., Nenni, M., Nicassio, N., Noferini, F., Noto, F., Nunez, C., Occhiuto, L., Osipenko, M., Paladino, A., Panzieri, D., Pecar, C., Perticaroli, P., Plavully, S., Polizzi, L., Pontisso, L., Posik, M., Preghenella, R., Pucillo, S., Rajan, A., Ricci, R., Rignanese, L., Rinaldi, L., Ripoli, C., Romeo, C.. 2026-03-28. The ePIC dual-radiator RICH detector. https://doi.org/10.1016/j.nima.2026.171537
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