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  • Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab -- 2018 update to PR12-16-001
    Battaglieri, M; Bersani, A; Bracco, G; Caiffi, B; De Vita, R; Marsicano, L; Musico, P; Panza, F; Ripani, M; Santopinto, E; Taiuti, M; Bellini, V; Bondi', M; Castorina, P; De Napoli, M; Italiano, A; Kuznetzov, V; Leonora, E; Mammoliti, F; Randazzo, N; L Re; Russo, G; Russo, M; Shahinyan, A; Spinali, S; Sutera, C; Tortorici, F; Dalton, M; Freyberger, A; Kubarovsky, V; Smith, E S; Szumilla-Vance, H; Whitlatch, T; Ehle, I; Snowden-Ifft, D; Loomba, D; Carpinelli, M; D'Urso, D; Gabrieli, A; Maccioni, G; Sant, M; Sipala, V; Ameli, F; De Persio, F; A Del Dotto; Meddi, F; Urciuoli, G M; Chiarusi, T; Manzali, M; Schuster, P; Toro, N; Essig, R; Holtrop, M; Paremuzyan, R; De Cataldo, G; De Leo, R; D Di Bari; Lagamba, L; Perrino, R; Ciullo, G; Contalbrigo, M; Lenisa, P; Movsisyan, A; Pappalardo, L; Turisini, M; Hasch, D; Lucherini, V; Mirazita, M; Pisano, S; Rossi, P; Tomassini, S; Simi, G; D'Angelo, A; Lanza, L; Rizzo, A; Filippi, A; Genovese, M; Kunkel, M; Bashkanov, M; Murphy, A; Smith, G; Watts, D; Zachariou, N; Glazier, D; Ireland, D; McKinnon, B; Sokhan, D; Pereira, S Anefalos; Afanasev, A; Strakovsky, I; Kalantarians, N; Weinstein, L; Adhikari, K P; Dunne, J A; Dutta, D; L El Fassi; L Ye; Hicks, K; Dobbs, S; Mohanmurthy, P

    arXiv.org, 10/2019
    Paper, Journal Article

    This document complements and completes what was submitted last year to PAC45 as an update to the proposal PR12-16-001 "Dark matter search in a Beam-Dump eXperiment (BDX)" at Jefferson Lab submitted to JLab-PAC44 in 2016. Following the suggestions contained in the PAC45 report, in coordination with the lab, we ran a test to assess the beam-related backgrounds and validate the simulation framework used to design the BDX experiment. Using a common Monte Carlo framework for the test and the proposed experiment, we optimized the selection cuts to maximize the reach considering simultaneously the signal, cosmic-ray background (assessed in Catania test with BDX-Proto) and beam-related backgrounds (irreducible NC and CC neutrino interactions as determined by simulation). Our results confirmed what was presented in the original proposal: with 285 days of a parasitic run at 65 \(\mu\)A (corresponding to \(10^{22}\) EOT) the BDX experiment will lower the exclusion limits in the case of no signal by one to two orders of magnitude in the parameter space of dark-matter coupling versus mass.

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