TY - JOUR
T1 - Analysis strategies for the updated geoneutrino measurement with Borexino
AU - Borexino collaboration
AU - Kumaran, Sindhujha
AU - Agostini, M.
AU - Altenmüller, K.
AU - Appel, S.
AU - Atroshchenko, V.
AU - Bagdasarian, Z.
AU - Basilico, D.
AU - Bellini, G.
AU - Benziger, J.
AU - Bick, D.
AU - Bonfini, G.
AU - Bravo, D.
AU - Caccianiga, B.
AU - Calaprice, F.
AU - Caminata, A.
AU - Cappelli, L.
AU - Cavalcante, P.
AU - Cavanna, F.
AU - Chepurnov, A.
AU - Choi, K.
AU - D'Angelo, D.
AU - Davini, S.
AU - Derbin, A.
AU - Di Giacinto, A.
AU - Di Marcello, V.
AU - Ding, X. F.
AU - Di Ludovico, A.
AU - Di Noto, L.
AU - Drachnev, I.
AU - Fiorentini, G.
AU - Formozov, A.
AU - Franco, D.
AU - Gabriele, F.
AU - Galbiati, C.
AU - Gschwender, M.
AU - Ghiano, C.
AU - Giammarchi, M.
AU - Goretti, A.
AU - Gromov, M.
AU - Guffanti, D.
AU - Hagner, C.
AU - Hungerford, E.
AU - Ianni, Aldo
AU - Ianni, Andrea
AU - Jany, A.
AU - Jeschke, D.
AU - Kumaran, S.
AU - Kobychev, V.
AU - Korga, G.
AU - Lachenmaier, T.
N1 - Publisher Copyright:
© Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
PY - 2020/3/20
Y1 - 2020/3/20
N2 - Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso (LNGS), Italy and is one of the two detectors that has measured geoneutrinos so far. The unprecedented radio-purity of the scintillator, the shielding with highly purified water, and the placement of the detector at a 3800 m w.e. depth have resulted in very low background levels and have made Borexino an excellent apparatus for geoneutrino measurements. The analysis techniques of the latest geoneutrino results with Borexino were presented using the data obtained from December 2007 to April 2019, corresponding to an exposure of (1.12 ± 0.05) ×1032 protons × yr. Enhanced analysis techniques, such as an increased fiducial volume, improved veto for cosmogenic backgrounds, extended energy and coincidence time windows, as well as a more efficient α/β particle discrimination have been adopted in this measurement. The updated statistics and these elaborate resulted in a geoneutrino signal of 47.0+8.4−7.7 (stat)+2.4−1.9 (sys) TNU with +18.3−17.2% total precision.
AB - Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso (LNGS), Italy and is one of the two detectors that has measured geoneutrinos so far. The unprecedented radio-purity of the scintillator, the shielding with highly purified water, and the placement of the detector at a 3800 m w.e. depth have resulted in very low background levels and have made Borexino an excellent apparatus for geoneutrino measurements. The analysis techniques of the latest geoneutrino results with Borexino were presented using the data obtained from December 2007 to April 2019, corresponding to an exposure of (1.12 ± 0.05) ×1032 protons × yr. Enhanced analysis techniques, such as an increased fiducial volume, improved veto for cosmogenic backgrounds, extended energy and coincidence time windows, as well as a more efficient α/β particle discrimination have been adopted in this measurement. The updated statistics and these elaborate resulted in a geoneutrino signal of 47.0+8.4−7.7 (stat)+2.4−1.9 (sys) TNU with +18.3−17.2% total precision.
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U2 - 10.1088/1742-6596/1468/1/012184
DO - 10.1088/1742-6596/1468/1/012184
M3 - Conference article
AN - SCOPUS:85089576807
SN - 1742-6588
VL - 1468
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012184
T2 - 16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019
Y2 - 9 September 2019 through 13 September 2019
ER -