SOX: search for short baseline neutrino oscillations with Borexino

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Vivier, M.^4 ; Agostini, M.^24 ; Altenmüller, K.^24 ; Appel, S.^24 ; Bellini, G.^15 ; Benziger, J.^19 ; Berton, N.^4 ; Bick, D.^5 ; Bonfini, G.^14 ; Bravo, D.^22 ; Caccianiga, B.^15 ; Calaprice, F.^18 ; Caminata, A.^3 ; Cavalcante, P.^14 ; Chepurnov, A.^25 ; Choi, K.^30 ; Cribier, M.^1,4 ; D'Angelo, D.^15 ; Davini, S.^26 ; Derbin, A.^17,20 ; Di Noto, L.^3 ; Drachnev, I.^26 ; Durero, M.^4 ; Etenko, A.^12 ; Farinon, S.^3 ; Fischer, V.^4 ; Fomenko, K.^2 ; Franco, D.^1 ; Gabriele, F.^14 ; Gaffliot, J.^4 ; Galbiati, C.^18 ; Ghiano, C.^3 ; Giammarchi, M.^15 ; Goeger-Neff, M.^24 ; Goretti, A.^18 ; Gromov, M.^25 ; Hagner, C.^5 ; Houdy, T.^1,4 ; Hungerford, E.^27 ; Ianni, Aldo^14 ; Ianni, Andrea^18 ; Jonquàres, N.^7 ; Jedrzejczak, K.^8 ; Kaiser, M.^5 ; Kobychev, V.^9 ; Korablev, D.^2 ; Korga, G.^14 ; Kornoukhov, V.^10 ; Kryn, D.^1 ; Lachenmaier, T.^11 ; Lasserre, T.^1,4 ; Laubenstein, M.^14 ; Lehnert, B.^28 ; Link, J.^22 ; Litvinovich, E.^12,13 ; Lombardi, F.^14 ; Lombardi, P.^15 ; Ludhova, L.^15 ; Lukyanchenko, G.^12,13 ; MacHulin, I.^12,13 ; Manecki, S.^22 ; Maneschg, W.^6 ; Marcocci, S.^26 ; Maricic, J.^30 ; Mention, G.^4 ; Meroni, E.^15 ; Meyer, M.^5 ; Miramonti, L.^15 ; Misiaszek, M.^8,14 ; Montuschi, M.^23 ; Mosteiro, P.^18 ; Muratova, V.^17 ; Musenich, R.^3 ; Neumair, B.^24 ; Oberauer, L.^24 ; Obolensky, M.^1 ; Ortica, F.^16 ; Pallavicini, M.^3 ; Papp, L.^24 ; Perasso, L.^3 ; Pocar, A.^21 ; Ranucci, G.^15 ; Razeto, A.^14 ; Re, A.^15 ; Romani, A.^16 ; Roncin, R.^1,14 ; Rossi, N.^14 ; Schönert, S.^24 ; Scola, L.^4 ; Semenov, D.^17 ; Skorokhvatov, M.^12,13 ; Smirnov, O.^2 ; Sotnikov, A.^2 ; Sukhotin, S.^12 ; Suvorov, Y.^12,29 ; Tartaglia, R.^14 ; Testera, G.^3 ; Thurn, J.^28 ; Toropova, M.^12 ; Veyssiére, C.^4 ; Unzhakov, E.^17 ; Vogelaar, R.B.^22 ; Von Feilitzsch, F.^24 ; Wang, H.^29 ; Weinz, S.^31 ; Winter, J.^31 ; Wojcik, M.^8 ; Wurm, M.^31 ; Yokley, Z.^22 ; Zaimidoroga, O.^2 ; Zavatarelli, S.^3 ; Zuber, K.^28 ; Zuzel, G.^8

AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, Paris Cedex 13

75205, France^1

Joint Institute for Nuclear Research, Dubna

141980, Russia^2

Dipartimento di Fisica, Università degli Studi e INFN, Genova

16146, Italy^3

Commissariat À l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU, Gif-sur-Yvette

91191, France^4

Institut für Experimentalphysik, Universität, Hamburg

22761, Germany^5

Max-Planck-Institut für Kernphysik, Heidelberg

69117, Germany^6

Commissariat À l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, DEN/DM2S/SEMT/BCCR, Gif-sur-Yvette

91191, France^7

M. Smoluchowski Institute of Physics, Jagiellonian University, Krakow

30059, Poland^8

Kiev Institute for Nuclear Research, Kiev

06380, Ukraine

(10) Institute for Theoretical and Experimental Physics, Moscow

117218, Russia

(11) Kepler Center for Astro and Particle Physics, Universität Tübingen, Tübingen

72076, Germany

(12) NRC Kurchatov Institute, Moscow

123182, Russia

(13) National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow

115409, Russia

(14) INFN Laboratori Nazionali Del Gran Sasso, Assergi (AQ)

67010, Italy

(15) Dipartimento di Fisica, Università degli Studi e INFN, Milano

20133, Italy

(16) Dipartimento di Chimica, Università e INFN, Perugia

06123, Italy

(17) St. Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina

188350, Russia

(18) Physics Department, Princeton University, Princeton

NJ

08544, United States

(19) Chemical Engineering Department, Princeton University, Princeton

NJ

08544, United States

(20) Physics Department, Queen's University, Kingston

ON

K7L 3N6, Canada

(21) Amherst Center for Fundamental Interactions, Physics Department, University of Massachusetts, Amherst

MA

01003, United States

(22) Physics Department, Virginia Polytechnic Institute, State University, Blacksburg

VA

24061, United States

(23) Dipartimento di Fisica e Scienze della Terra, Università degli Studi di Ferrara e INFN, Via Saragat 1, Ferrara

44122, Italy

(24) Physik-Department and Excellence Cluster Universe, Technische Universität München, Garching

85748, Germany

(25) Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow

119234, Russia

(26) Gran Sasso Science Institute (INFN), L'aquila

67100, Italy

(27) Department of Physics, University of Houston, Houston

TX

77204, United States

(28) Department of Physics, Technische Universität Dresden, Dresden

01062, Germany

(29) Physics and Astronomy Department, University of California Los Angeles (UCLA), Los Angeles

CA

90095, United States

(30) Department of Physics and Astronomy, University of Hawaii, Honolulu

HI

96822, United States

(31) Institute of Physics and Excellence Cluster PRISMA, Johannes Gutenberg-Universität Mainz, Mainz

55099, Germany^9

关键词: Active detector;    Borexino detectors;    Latest development;    Neutrino oscillations;    Radioactive sources;    Short base lines;    State of the art;    Sterile neutrinos;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/6/062066/pdf
DOI  :  10.1088/1742-6596/718/6/062066

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The Borexino detector has convincingly shown its outstanding performances in the low energy regime through its accomplishments in the observation and study of the solar and geo neutrinos. It is then an ideal tool to perform a state of the art source-based experiment for testing the longstanding hypothesis of a fourth sterile neutrino with ∼ eV2mass, as suggested by several anomalies accumulated over the past three decades in source, reactor, and accelerator-based experiments. The SOX project aims at successively deploying two intense radioactive sources, made of Cerium (antineutrino) and Chromium (neutrino), respectively, in a dedicated pit located beneath the detector. The existence of such an ∼ eV2sterile neutrino would then show up as an unambiguous spatial and energy distortion in the count rate of neutrinos interacting within the active detector volume. This article reports on the latest developments about the first phase of the SOX experiment, namely CeSOX, and gives a realistic projection of CeSOX sensitivity to light sterile neutrinos in a simple (3+1) model.