CeSOX: An experimental test of the sterile neutrino hypothesis with Borexino

M. Gromov , M. Agostini , K. Altenmüller , S. Appel , V. Atroshchenko , Z. Bagdasarian , D. Basilico , G. Bellini , J. Benziger , D. Bick , G. Bonfini , D. Bravo , B. Caccianiga , F. Calaprice , A. Caminata , S. Caprioli , M. Carlini , P. Cavalcante , A. Chepurnov , K. Choi , O. Cloué (1) , L. Collica , M. Cribier (1) , D. d'Angelo , S. Davini , A. Derbin , X.F. Ding , A. Di Ludovico , L. Di Noto , I. Drachnev , M. Durero (1) , S. Farinon , V. Fischer (1) , K. Fomenko , A. Formozov , D. Franco (2) , F. Gabriele , J. Gaffiot (1) , C. Galbiati , M. Gschwender , C. Ghiano , M. Giammarchi , A. Goretti , D. Guffanti , C. Hagner , T. Houdy (2) , E. Hungerford , Aldo Ianni , Andrea Ianni , N. Jonquères (3) , A. Jany , D. Jeschke , V. Kobychev , D. Korablev , G. Korga , V. Kornoukhov , D. Kryn (2) , T. Lachenmaier , T. Lasserre (1) , M. Laubenstein , E. Litvinovich , F. Lombardi , P. Lombardi , L. Ludhova , G. Lukyanchenko , L. Lukyanchenko , I. Machulin , G. Manuzio , S. Marcocci , J. Maricic , G. Mention (1) , J. Martyn , E. Meroni , M. Meyer , L. Miramonti , M. Misiaszek , V. Muratova , R. Musenich , B. Neumair , L. Oberauer , B. Opitz , V. Orekhov , F. Ortica , M. Pallavicini , L. Papp , Ö Penek , N. Pilipenko , A. Pocar , A. Porcelli , G. Ranucci , A. Razeto , A. Re , M. Redchuk , A. Romani , R. Roncin (2) , N. Rossi , S. Rottenanger , S. Schönert , L. Scola (1) , D. Semenov , M. Skorokhvatov , O. Smirnov , A. Sotnikov , L.F. F. Stokes , Y. Suvorov , R. Tartaglia , G. Testera , J. Thurn , M. Toropova , A. Trantel , E. Unzhakov , C. Veyssiére (1) , A. Vishneva , M. Vivier (1) , R.B. Vogelaar , F. von Feilitzsch , H. Wang , S. Weinz , M. Wojcik , M. Wurm , Z. Yokley , O. Zaimidoroga , S. Zavatarelli , K. Zuber , G. Zuzel

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 APC (UMR_7164) - AstroParticule et Cosmologie
3 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)

The third phase of the Borexino experiment that’s referred to as SOX is devoted to test the hypothesis of the existence of one (or more) sterile neutrinos at a short baseline (~5–10m). The experimental measurement will be made with artificial sources namely with a 144Ce–144Pr antineutrino source at the first stage (CeSOX) and possibly with a 51Cr neutrino source at the second one. The fixed 144Ce–144Pr sample will be placed beneath the detector in a special pit and the initial activity will be about 100 – 150 kCi. The start of data taking is scheduled for April 2018. The article gives a short description of the preparation for the first stage and shows the expected sensitivity.

Mots clés: talk: Moscow 2017/10/02; neutrino: sterile: search for; cesium; Borexino; antineutrino: particle source; sensitivity; proposed experiment

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

M. Gromov, M. Agostini, K. Altenmüller, S. Appel, V. Atroshchenko, et al.. CeSOX: An experimental test of the sterile neutrino hypothesis with Borexino. 3rd International Conference on Particle Physics and Astrophysics, Oct 2017, Moscow, Russia. pp.012003, ⟨10.1088/1742-6596/934/1/012003⟩. ⟨hal-01703724⟩