Final results of Borexino on CNO solar neutrinos
D. Basilico, G. Bellini, J. Benziger, R. Biondi, B. Caccianiga, F. Calaprice, A. Caminata, A. Chepurnov, D. D’Angelo, A. Derbin, A. Di Giacinto, V. Di Marcello, Xuefeng Ding, A. Di Ludovico, L. Di Noto, I. Drachnev, D. Franco, C. Galbiati, C. Ghiano, M. Giammarchi, A. Goretti, M. Gromov, D. Güffanti, Aldo Ianni, Andrea Ianni, A. Jany, V. Kobychev, G. Korga, S. Kumaran, M. Laubenstein, E. Litvinovich, P. Lombardi, I. Lomskaya, L. Ludhová, I. Machulin, J. Martýn, E. Meroni, L. Miramonti, M. Misiaszek, V. Muratova, R. Nugmanov, L. Oberauer, V. Orekhov, F. Ortica, M. Pallavicini, L. Pelicci, Ö. Penek, L. Pietrofaccia, N. Pilipenko, A. Pocar, G. Raikov, M. T. Ranalli, G. Ranucci, A. Razeto, A. Re, N. Rossi, S. Schönert, D. Semenov, Giulio Settanta, M. Skorokhvatov, A. Singhal, O. Smirnov, A. Sotnikov, R. Tartaglia, G. Testera, E. Unzhakov, F.L. Villante, A. Vishneva, R. B. Vogelaar, F. von Feilitzsch, M. Wójcik, M. Wurm, S. Zavatarelli, Κ. Zuber, G. Zuzel
Abstract
Although only one percent or so of the sun's luminosity comes from the Carbon-Nitrogen-Oxygen (CNO) reaction cycle, the Borexino Collaboration has managed to discriminate neutrinos arising from this process from the dominant pp cycle. In this new study, the collaboration uses a recently developed technique called the ``correlated integrated directionality'' (CID) method. This is an efficient way to separate solar neutrinos from background sources and further refine the detection of CNO cycle neutrinos through spectral analysis.