Searching for millicharged particles with 1 kg of Skipper-CCDs using the NuMI beam at Fermilab
Santiago Pérez, Darío Rodrigues, Juan Estrada, Roni Harnik, Zhen Liu, Brenda A. Cervantes-Vergara, Juan Carlos D’Olivo, Ryan Plestid, Javier Tiffenberg, T. Yu, A. A. Aguilar-Arevalo, Fabricio Alcalde-Bessia, Nicolás Avalos, Oscar Baez, D. Baxter, X. Bertou, C. Bonifazi, Ana Martina Botti, Gustavo Cancelo, N. Castelló-Mor, Á. Chavarría, Claudio Chavez, Fernando Chierchie, Juan Manuel De Egea, Cyrus E. Dreyer, A. Drlica-Wagner, Rouven Essig, Ezequiel Estrada, E. Etzion, Paul Grylls, Guillermo Fernandez-Moroni, Mariví Fernández-Serra, Santiago Ferreyra, S. T. Holland, Agustín Lantero Barreda, Andrew Lathrop, Ian Lawson, B. Loer, Steffon Luoma, Edgar Marrufo Villalpando, Mauricio Martinez Montero, Kellie McGuire, Jorge Molina, Sravan Munagavalasa, D. Norcini, A. Piers, Paolo Privitera, N. Saffold, Richard Saldanha, Aman Singal, Radomir Šmída, Miguel Sofo-Haro, Diego Stalder, Leandro Stefanazzi, Michelangelo Traina, Yu-Dai Tsai, Sho Uemura, Pedro Ventura, R. Vilar Cortabitarte, Rachana Yajur
Abstract
A bstract Oscura is a planned light-dark matter search experiment using Skipper-CCDs with a total active mass of 10 kg. As part of the detector development, the collaboration plans to build the Oscura Integration Test (OIT), an engineering test with 10% of the total mass. Here we discuss the early science opportunities with the OIT to search for millicharged particles (mCPs) using the NuMI beam at Fermilab. mCPs would be produced at low energies through photon-mediated processes from decays of scalar, pseudoscalar, and vector mesons, or direct Drell-Yan productions. Estimates show that the OIT would be a world-leading probe for mCPs in the ∼MeV mass range.