@article{3035358,
    title = "Letter of interest for a neutrino beam from Protvino to KM3NeT/ORCA",
    author = "Akindinov, A.V. and Anassontzis, E.G. and Anton, G. and Ardid, M. and Aublin, J. and Baret, B. and Bertin, V. and Bourret, S. and Bozza, C. and Bruchner, M. and Bruijn, R. and Brunner, J. and Chabab, M. and Chau, N. and Chepurnov, A.S. and Colomer Molla, M. and Coyle, P. and Creusot, A. and de Wasseige, G. and Domi, A. and Donzaud, C. and Eberl, T. and Enzenhöfer, A. and Faifman, M. and Filipović, M.D. and Fusco, L. and Garkusha, V.I. and Gal, T. and Gozzini, S.R. and Graf, K. and Grégoire, T. and Grella, G. and Hallmann, S. and Heijboer, A. and Hernández-Rey, J.J. and Hofestädt, J. and Ivanov, S.V. and James, C.W. and de Jong, M. and de Jong, P. and Kalaczyński, P. and Kakorin, I.D. and Katz, U.F. and Khan Chowdhury, N.R. and Kirsanov, M.M. and Kouchner, A. and Kulikovskiy, V. and Kuzmin, K.S. and Le Breton, R. and Lebedev, O.P. and Lincetto, M. and Litvinovich, E. and Lopez-Coto, D. and Markou, C. and Maximov, A.V. and Melis, K.W. and Muller, R. and Naumov, V.A. and Navas, S. and Nauta, L. and Nielsen, C. and Novoskoltsev, F.N. and Ó Fearraigh, B. and Organokov, M. and Papalashvili, G. and Perrin-Terrin, M. and Poirè, C. and Pradier, T. and Quinn, L. and Samtleben, D.F.E. and Sanguineti, M. and Seneca, J. and Shanidze, R. and Shirokov, E.V. and Sinopoulou, A. and Sinyukov, R.Y. and Skorokhvatov, M.D. and Sokalski, I. and Sokolov, A.A. and Spisso, B. and Stellacci, S.M. and Strandberg, B. and Taiuti, M. and Thakore, T. and Tzamariudaki, E. and Van Elewyck, V. and de Wolf, E. and Zaborov, D. and Zaitsev, A.M. and Zornoza, J.D. and Zúñiga, J.",
    journal = "The European Physical Journal C - Particles and Fields",
    year = "2019",
    volume = "79",
    number = "9",
    publisher = "Springer New York LLC",
    issn = "1434-6044, 1434-6052",
    doi = "10.1140/epjc/s10052-019-7259-5",
    abstract = "The Protvino accelerator facility located in the Moscow region, Russia, is in a good position to offer a rich experimental research program in the field of neutrino physics. Of particular interest is the possibility to direct a neutrino beam from Protvino towards the KM3NeT/ORCA detector, which is currently under construction in the Mediterranean Sea 40 km offshore Toulon, France. This proposal is known as P2O. Thanks to its baseline of 2595 km, this experiment would yield an unparalleled sensitivity to matter effects in the Earth, allowing for the determination of the neutrino mass ordering with a high level of certainty after only a few years of running at a modest beam intensity of ≈90kW. With a prolonged exposure (≈1500kWyear), a 2 σ sensitivity to the leptonic CP-violating Dirac phase can be achieved. A second stage of the experiment, comprising a further intensity upgrade of the accelerator complex and a densified version of the ORCA detector (Super-ORCA), would allow for up to a 6 σ sensitivity to CP violation and a 10 ∘- 17 ∘ resolution on the CP phase after 10 years of running with a 450 kW beam, competitive with other planned experiments. The initial composition and energy spectrum of the neutrino beam would need to be monitored by a near detector, to be constructed several hundred meters downstream from the proton beam target. The same neutrino beam and near detector set-up would also allow for neutrino-nucleus cross section measurements to be performed. A short-baseline sterile neutrino search experiment would also be possible. © 2019, The Author(s)."
}