A. Chepurnov⁶, D. D’Angelo¹, A. Derbin⁷, A. Di Giacinto³, V. Di Marcello³, X. F. Ding^4,‡, A. Di Ludovico^3,4, L. Di Noto⁵, I. Drachnev⁷, D. Franco⁸, C. Galbiati^4,9, C. Ghiano³, M. Giammarchi¹, A. Goretti⁴, M. Gromov^6,22, D. Guffanti^10,§, Aldo Ianni³, Andrea Ianni⁴, A. Jany¹¹, V. Kobychev¹², G. Korga^13,14, S. Kumaran^15,16,∥, M. Laubenstein³, E. Litvinovich^17,18, P. Lombardi¹, I. Lomskaya⁷, L. Ludhova^15,16,10,¶, I. Machulin^17,18, J. Martyn¹⁰, E. Meroni¹, L. Miramonti¹, M. Misiaszek¹¹, V. Muratova⁷, L. Oberauer¹⁹, V. Orekhov¹⁰, F. Ortica²⁰, M. Pallavicini⁵, L. Pelicci¹, Ö. Penek^15,**, L. Pietrofaccia³, N. Pilipenko⁷, A. Pocar²¹, G. Raikov¹⁷, M. T. Ranalli³, G. Ranucci¹, A. Razeto³, A. Re¹, N. Rossi³, S. Schönert¹⁹, D. Semenov⁷, G. Settanta^15,††, M. Skorokhvatov^17,18, A. Singhal^15,16,‡‡, O. Smirnov²², A. Sotnikov²², G. Sun²⁵, R. Tartaglia³, G. Testera⁵, M. D. C. Torri¹, E. Unzhakov⁷, A. Vishneva²², R. B. Vogelaar²³, F. von Feilitzsch¹⁹, M. Wojcik^11,*, M. Wurm¹⁰, S. Zavatarelli⁵, X. Zhou²⁵, K. Zuber²⁴, and G. Zuzel¹¹ (The BOREXINO Collaboration)

• ¹Dipartimento di Fisica, Università degli Studi e INFN, 20133 Milan, Italy
• ²Chemical Engineering Department, Princeton University, Princeton, New Jersey 08544, USA
• ³INFN Laboratori Nazionali del Gran Sasso, 67010 Assergi (AQ), Italy
• ⁴Physics Department, Princeton University, Princeton, New Jersey 08544, USA
• ⁵Dipartimento di Fisica, Università degli Studi e INFN, 16146 Genova, Italy
• ⁶Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
• ⁷St. Petersburg Nuclear Physics Institute NRC Kurchatov Institute, 188350 Gatchina, Russia
• ⁸APC, Université de Paris Cité, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
• ⁹Gran Sasso Science Institute, 67100 L’Aquila, Italy
• ¹⁰Institute of Physics and Excellence Cluster PRISMA+, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
• ¹¹M. Smoluchowski Institute of Physics, Jagiellonian University, 30348 Krakow, Poland
• ¹²Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine
• ¹³Department of Physics, Royal Holloway University of London, Egham, Surrey TW20 0EX, United Kingdom
• ¹⁴Institute of Nuclear Research (Atomki), Debrecen, Hungary
• ¹⁵Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
• ¹⁶III. Physikalisches Institut B, RWTH Aachen University, 52062 Aachen, Germany
• ¹⁷National Research Centre Kurchatov Institute, 123182 Moscow, Russia
• ¹⁸National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
• ¹⁹Physik-Department, Technische Universität München, 85748 Garching, Germany
• ²⁰Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi e INFN, 06123 Perugia, Italy
• ²¹Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
• ²²Joint Institute for Nuclear Research, 141980 Dubna, Russia
• ²³Physics Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
• ²⁴TU Dresden, Dresden, Germany
• ²⁵School of Physics and Technology, Wuhan University, Wuhan, China

• ^*Deceased.
• ^†Present address: Gran Sasso Science Institute (GSSI), L’Aquila, Italy.
• ^‡Present address: IHEP Institute of High Energy Physics, 100049 Beijing, China.
• ^§Present address: Dipartimento di Fisica, Università degli Studi e INFN Milano-Bicocca, 20126 Milan, Italy.
• ^∥Present address: Department of Physics and Astronomy, University of California, Irvine, California, USA.
• ^¶Present address: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
• ^**Present address: Boston University, Department of Physics, 02215 Boston, Massachusetts, USA.
• ^††Present address: Istituto Superiore per la Protezione e la Ricerca Ambientale, 00144 Rome, Italy.
• ^‡‡Present address: WSS-Forschungszentrum catalaix, RWTH Aachen University, Worringerweg 2, 52074 Aachen.
• ^§§Group Spokesperson: spokesperson-borex@lngs.infn.it