Recent Results from Borexino

International Conference on Particle Physics and Astrophysics

物理学;天文学

Jeschke, D.^1 ; Agostini, M.^2 ; Altenmüller, K.^1 ; Appel, S.^1 ; Atroshchenko, V.^3 ; Bellini, G.^4 ; Benziger, J.^28 ; Bick, D.^14 ; Bonfini, G.^7 ; Bravo, D.^8 ; Caccianiga, B.^4 ; Calaprice, F.^5 ; Caminata, A.^6 ; Carlini, M.^7 ; Cavalcante, P.^7,8 ; Chepurnov, A.^9 ; Choi, K.^10 ; D'Angelo, D.^4 ; Davini, S.^2 ; Derbin, A.^11 ; Di Noto, L.^6 ; Drachnev, I.^2 ; Etenko, A.^3 ; Fomenko, K.^12 ; Franco, D.^13 ; Gabriele, F.^7 ; Galbiati, C.^5 ; Ghiano, C.^6 ; Giammarchi, M.^4 ; Goeger-Neff, M.^1 ; Goretti, A.^5 ; Gromov, M.^9 ; Hagner, C.^14 ; Hungerford, E.^15 ; Ianni, Aldo^7 ; Ianni, Andrea^5 ; Jany, A.^16 ; Jedrzejczak, K.^16 ; Jeschke, D.^1 ; Kobychev, V.^17 ; Korablev, D.^12 ; Korga, G.^7 ; Kryn, D.^13 ; Laubenstein, M.^7 ; Lehnert, B.^18 ; Litvinovich, E.^3,19 ; Lombardi, F.^7 ; Lombardi, P.^4 ; Ludhova, L.^20,21 ; Lukyanchenko, G.^3 ; Machulin, I.^3,19 ; Manecki, S.^8,22 ; Maneschg, W.^23 ; Manuzio, G.^6 ; Marcocci, S.^2 ; Meroni, E.^4 ; Meyer, M.^1,4 ; Miramonti, L.^4 ; Misiaszek, M.^7,16 ; Montuschi, M.^24 ; Mosteiro, P.^5 ; Muratova, V.^11 ; Neumair, B.^1 ; Oberauer, L.^1 ; Obolensky, M.^13 ; Ortica, F.^25 ; Pallavicini, M.^6 ; Papp, L.^1 ; Pocar, A.^29 ; Ranucci, G.^4 ; Razeto, A.^7 ; Re, A.^4 ; Romani, A.^25 ; Roncin, R.^7,13 ; Rossi, N.^7 ; Schönert, S.^1 ; Semenov, D.^11 ; Skorokhvatov, M.^3,19 ; Smirnov, O.^12 ; Sotnikov, A.^12 ; Sukhotin, S.^3 ; Suvorov, Y.^3,26 ; Tartaglia, R.^7 ; Testera, G.^6 ; Thurn, J.^18 ; Toropova, M.^3 ; Unzhakov, E.^11 ; Vishneva, A.^12 ; Vogelaar, R.B.^8 ; Von Feilitzsch, F.^1 ; Wang, H.^26 ; Weinz, S.^27 ; Winter, J.^27 ; Wojcik, M.^16 ; Wurm, M.^27 ; Yokley, Z.^8 ; Zaimidoroga, O.^12 ; Zavatarelli, S.^6 ; Zuber, K.^18 ; Zuzel, G.^16

Physik-Department and Excellence Cluster Universe, Technische Universitat München, Garching

85748, Germany^1

Gran Sasso Science Institute (INFN), L'AQUILA

67100, Italy^2

National Research Center Kurchatov Institute, Moscow

123182, Russia^3

Dipartimento di Fisica, Universita Degli Studi e INFN, Milano

20133, Italy^4

Physics Department, Princeton University, Princeton

NJ

08544, United States^5

Dipartimento di Fisica, Universita Degli Studi e INFN, Genova

16146, Italy^6

INFN Laboratori Nazionali Del Gran Sasso, Assergi (AQ)

67010, Italy^7

Physics Department, Virginia Polytechnic Institute, State University, Blacksburg

VA

24061, United States^8

Lomonosov Moscow State University Skobeltsyn, Institute of Nuclear Physics, Moscow

119234, Russia

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

HI

96822, United States

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

188350, Russia

(12) Joint Institute for Nuclear Research, Dubna

141980, Russia

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

75205, France

(14) Institut für Experimentalphysik, Universitat, Hamburg

22761, Germany

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

TX

77204, United States

(16) M. Smoluchowski Institute of Physics, Jagiellonian University, Krakow

30059, Poland

(17) Kiev Institute for Nuclear Research, Kiev

06380, Ukraine

(18) Department of Physics, Technische Universitat Dresden, Dresden

01062, Germany

(19) National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Moscow

115409, Russia

(20) RWTH Aachen University, Aachen

52062, Germany

(21) IKP-2 Forschungzentrum Jülich, Jülich, 52428, Germany

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

ON

K7L 3N6, Canada

(23) Max-Planck-Institut für Kernphysik, Heidelberg

69117, Germany

(24) Dipartimento di Fisica e Scienze della, Terra Universita Degli Studi di Ferrara e INFN, Via Saragat 1, Ferrara

44122, Italy

(25) Dipartimento di Chimica, Biologia e Biotecnologie, Universita e INFN, Perugia

06123, Italy

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

CA

90095, United States

(27) Institute of Physics and Excellence Cluster PRISMA, Johannes Gutenberg-Universitat Mainz, Mainz

55099, Germany

(28) Chemical Engineering Department, Princeton University, Princeton

NJ

08544, United States

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

MA

01003, United States^9

关键词: Energy productions;    Geo-neutrinos;    Geophysical properties;    Information concerning;    Neutrino fluxes;    Neutrino physics;    Real time measurements;    Solar neutrino;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012114/pdf
DOI  :  10.1088/1742-6596/798/1/012114

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The Borexino experiment is taking data since 2007 at the Laboratori Nazionali del Gran Sasso in Italy accomplishing outstanding achievements in the field of neutrino physics. Its success is strongly based on the unprecedented ultra-high radio-purity of the inner scintillator core. The main features of the detector and the impressive results for solar and geo-neutrinos obtained by Borexino so far are summarized. The main focus is laid on the most recent results, i.e. the first real-time measurement of the solar pp neutrino flux and the detection of the signal induced by geo-neutrinos with a significance as high as 5.9σ. The measurement of the pp neutrino flux represents a direct probe of the major mechanism of energy production in the Sun and its observation at a significance of 10σ proves the stability of the Sun over a time of at least 105years. It further puts Borexino in the unique position of being capable to test the MSW-LMA paradigm across the whole solar energy range. The geo-neutrino data allow to infer information concerning important geophysical properties of the Earth that are also discussed. The perspectives of the final stage of the Borexino solar neutrino program that are centered on the goal of measuring the CNO neutrinos that so far escaped any observation are outlined.