The high precision measurement of the 144Ce activity in the SOX experiment

[摘要] In order to perform a resolutive measurement to clarify the neutrino anomalies and to observe possible short distance neutrino oscillations, the SOX (Short distance neutrino Oscillations with BoreXino) experiment is under construction. In the first phase, a 100 kCi144Ce-144Pr antineutrino source will be placed under the Borexino detector at the Laboratori Nazionali del Gran Sasso (LNGS), in center of Italy, and the rate measurement of the antineutrino events, observed by the very low radioactive background Borexino detector, will be compared with the high precision (

[发布机构] Dipartimento di Fisica, Universitá degli Studi e INFN, Genova; 16146, Italy^1;Physik-Department and Excellence Cluster Universe, Technische Universität München, Garching; 85748, Germany^2;Dipartimento di Fisica, Universitá degli Studi e INFN, Milano; 20133, Italy^3;Chemical Engineering Department, Princeton University, Princeton; NJ; 08544, United States^4;Commisariat Á l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU, Gif-sur-Yvette; 91191, France^5;Institut für Experimentalphysik, Universität, Hamburg; 22761, Germany^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;Physics Department, Princeton University, Princeton; NJ; 08544, United States; (10) Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow; 119234, Russia; (11) Department of Physics and Astronomy, University of Hawaii, Honolulu; HI; 96822, United States; (12) Gran Sasso Science Institute (INFN), L'Aquila; 67100, Italy; (13) St. Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina; 188350, Russia; (14) NRC Kurchatov Institute, Moscow; 123182, Russia; (15) Joint Institute for Nuclear Research, Dubna; 141980, Russia; (16) AstroParticule et Cosmologie, Universite Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, Paris, Cedex; 75205, France; (17) Department of Physics, University of Houston, Houston; TX; 77204, United States; (18) Commisariat Á l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, DEN/DM2S, SEMT/BCCR, Gif-sur-Yvette; 91191, France; (19) M Smoluchowski Institute of Physics, Jagiellonian University, Krakow; 30059, Poland; (20) Kiev Institute for Nuclear Research, Kiev; 06380, Ukraine; (21) Institute for Theoretical and Experimental Physics, Moscow; 117218, Russia; (22) Kepler Center for Astro and Particle Physics, Universität Tübingen, Tubingen; 72076, Germany; (23) Department of Physics, Technische Universität Dresden, Dresden; 01062, Germany; (24) National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow; 115409, Russia; (25) Max-Planck-Institut für Kernphysik, Heidelberg; 69117, Germany; (26) Dipartimento di Fisica e Scienze della Terra Universitá degli Studi di Ferrara e INFN, Via Saragat 1, Ferrara; 44122, Italy; (27) Dipartimento di Chimica, Universitá e INFN, Perugia; 06123, Italy; (28) Amherst Center for Fundamental Interactions, Physics Department, University of Massachusetts, Amherst; MA; 01003, United States; (29) Physics and Astronomy Department, University of California Los Angeles (UCLA), Los Angeles; CA; 90095, United States; (30) Institute of Physics and Excellence Cluster PRISMA, Johannes Gutenberg-Universität Mainz, Mainz; 55099, Germany^9

[关键词] Activity measurements;Borexino detectors;High-precision;High-precision measurement;Neutrino oscillations;Rate measurements;Thermal heat;Water flows