EPJ Web Conf.
Volume 182, 20186th International Conference on New Frontiers in Physics (ICNFP 2017)
|Number of page(s)||8|
|Published online||03 August 2018|
Recent Borexino results and perspectives of the SOX measurement
Institute of Physics and Excellence Cluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
2 Gran Sasso Science Institute (INFN), 67100 L'Aquila, Italy
3 Physik-Department and Excellence Cluster Universe, Technische Universität München, 85748 Garching, Germany
4 National Research Centre Kurchatov Institute, 123182 Moscow, Russia
5 IKP-2 Forschungzentrum Jülich, 52428 Jülich, Germany
6 RWTH Aachen University, 52062 Aachen, Germany
7 Dipartimento di Fisica, Università degli Studi e INFN, 20133 Milano, Italy
8 Chemical Engineering Department, Princeton University, Princeton, NJ 08544, USA
9 Institut für Experimentalphysik, Universität Hamburg, 22761 Hamburg, Germany
10 INFN Laboratori Nazionali del Gran Sasso, 67010 Assergi (AQ), Italy
11 Physics Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
12 Physics Department, Princeton University, Princeton, NJ 08544, USA
13 Dipartimento di Fisica, Università degli Studi e INFN, 16146 Genova, Italy
14 Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics, 119234 Moscow, Russia
15 Department of Physics and Astronomy, University of Hawaii, Honolulu, HI 96822, USA
16 Commisariat à l'Énergie Atomique et aux Énergies Alternatives, Centre de Saclay, IRFU, 91191 Gif-sur-Yvette, France
17 St. Petersburg Nuclear Physics Institute NRC Kurchatov Institute, 188350 Gatchina, Russia
18 Joint Institute for Nuclear Research, 141980 Dubna, Russia
19 AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris Cedex 13, France
20 Kepler Center for Astro and Particle Physics, Universität Tübingen, 72076 Tübingen, Germany
21 Department of Physics, University of Houston, Houston, TX 77204, USA
22 Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe S/N, 22880 Canfranc Estacion Huesca, Spain
23 Commisariat à l'Énergie Atomique et aux Énergies Alternatives, Centre de Saclay, DEN/DM2S/SEMT/BCCR, 91191 Gif-sur-Yvette, France
24 M. Smoluchowski Institute of Physics, Jagiellonian University, 30059 Krakow, Poland
25 Kiev Institute for Nuclear Research, 03680 Kiev, Ukraine
26 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
27 Physics Department, University of California, San Diego, CA 92093, USA
28 Department of Physics, Technische Universität Dresden, 01062 Dresden, Germany
29 Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi e INFN, 06123 Perugia, Italy
30 Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USA
31 Physics and Astronomy Department, University of California Los Angeles (UCLA), Los Angeles, California 90095, USA
a e-mail: email@example.com
Published online: 3 August 2018
Borexino is a liquid scintillator detector sited underground in the Laboratori Nazionali del Gran Sasso (Italy). Its physics program, until the end of this year, is focussed on the study of solar neutrinos, in particular from the Beryllium, pp, pep and CNO fusion reactions. Knowing the reaction chains in the sun provides insights towards physics disciplines such as astrophysics (star physics, star formation, etc.), astroparticle and particle physics. Phase II started in 2011 and its aim is to improve the phase I results, in particular the measurements of the neutrino fluxes from the pep and CNO processes. By the end of this year, data taking from the sun will be over and a new project is scheduled to launch: Short distance Oscillation with boreXino (SOX), which uses a Cerium source for neutrinos (100÷150 kCi of activity) and aims to confirm or rule out the presence of sterile neutrinos. This particle is hypothesised to justify the reactor, Gallium and LSND anomalies found and can reject extensions to the standard model. The work presented is a summary of the solar neutrino results achieved so far, which lead not only to a precise study of the processes in the sun, but also to more Standard Model oriented measurements (such as the stability of the charge, i.e. the life time of the electron). Furthermore, the perspectives of the SOX program are discussed showing the experiment sensitivity to a fourth neutrino state covering almost entirely 3σ of the preferred region of the anomalous neutrino experiments, and additional applications of the detector such as the study of geo-neutrinos.
© The Authors, published by EDP Sciences 2018
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