Overview and accomplishments of the Borexino experiment

International Conference on Particle Physics and Astrophysics

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

Dipartimento di Fisica, Universitá degli Studi e INFN, Milano

20133, Italy^1

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

85748, Germany^2

Chemical Engineering Department, Princeton University, Princeton

NJ

08544, United States^3

Institut fur Experimentalphysik, Universität, Hamburg

22761, Germany^4

INFN Laboratori Nazionali Del Gran Sasso, Assergi (AQ)

67010, Italy^5

Physics Department, Virginia Polytechnic Institute, State University, Blacksburg

VA

24061, United States^6

Physics Department, Princeton University, Princeton

NJ

08544, United States^7

Dipartimento di Fisica, Universitá degli Studi e INFN, Genova

16146, Italy^8

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

119234, Russia

(10) Gran Sasso Science Institute (INFN), L'Aquila

67100, Italy

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

188350, Russia

(12) NRC Kurchatov Institute, Moscow

123182, Russia

(13) Joint Institute for Nuclear Research, Dubna

141980, Russia

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

75205, France

(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 Universität Dresden, Dresden

01062, Germany

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

115409, Russia

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

69117, Germany

(21) Dipartimento di Fisica e Scienze della Terra Universitá degli Studi di Ferrara e INFN, Via Saragat 1-44122, Ferrara, Italy

(22) Dipartimento di Chimica, Biologia e Biotecnologie, Universitá degli Studi e INFN, Perugia

06123, Italy

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

MA

01003, United States

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

CA

90095, United States

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

55099, Germany^9

关键词: Direct probe;    Msw-lma;    Solar data;    Solar neutrino;    Solar neutrino fluxes;    Solar spectroscopy;    Solar spectrum;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/1/012036/pdf
DOI  :  10.1088/1742-6596/675/1/012036

来源: IOP

【 摘 要 】

The Borexino experiment is running at the Laboratori del Gran Sasso in Italy since 2007. Its technical distinctive feature is the unprecedented ultralow background of the inner scintillating core, which is the basis of the outstanding achievements accumulated by the experiment. In this talk, after recalling the main features of the detector, the impressive solar data gathered so far by the experiment will be summarized, with special emphasis to the most recent and prominent result concerning the detection of the fundamental pp solar neutrino flux, which is the direct probe of the engine mechanism powering our star. Such a milestone measurement puts Borexino in the unique situation of being the only experiment able to do solar neutrino spectroscopy over the entire solar spectrum; the counterpart of this peculiar status in the oscillation interpretation of the data is the capability of Borexino alone to perform the full validation across the solar energy range of the MSW-LMA paradigm. The talk will be concluded highlighting the perspectives for the final stage of the solar program of the experiment, centered on the goal to fully complete the solar spectroscopy with the missing piece of the CNO neutrinos. If successful, such a measurement would represent the final crowning of the long quest of Borexino to unravel all the properties of the neutrinos from the Sun.