Measurement of geo-neutrinos from 1353 days of Borexino

@inproceedings{Bellini2013MeasurementOG,
  title={Measurement of geo-neutrinos from 1353 days of Borexino},
  author={Gianpaolo Bellini and Jay B. Benziger and M. D. Skorokhvatov and Giuseppe Bonfini and Daniel Bravo and Margherita Buizza Avanzini and Barbara Caccianiga and Laura Cadonati and Frank Calaprice and Peterson Cavalcante and An. Ianni and Alexander Chepurnov and D. d'Angelo and Stefano Davini and A. V. Derbin and A Empl and Alexander Etenko and Giorgio Fiorentini and K. Fomenko and Daniel H. T. Franco and C. Galbiati and S. Gazzana and C. Ghiano and Marco G. Giammarchi and Marianne Goeger-Neff and A. M. Goretti and Luca Grandi and Charlotte Hagner and Ed.V. Hungerford and Andrea Ianni and V. V. Kobychev and D. Korablev and George Korga and Yusuke Koshio and Didier Kryn and Matthias Laubenstein and F. von Feilitzsch and Elizabeth Litvinovich and B. Loer and Paul Lombardi and Francesco Lombardi and Livia Ludhova and G. Lukyanchenko and I. N. Machulin and Szymon Manecki and Werner Maneschg and Franco Mantovani and Giulio Manuzio and Quirin Meindl and Emanuela Meroni and Lino Miramonti and Marcin Misiaszek and Pilar Mosteiro and Viktorina N. Muratova and Lothar J. N. Oberauer and Marguerite Anne Beatrice Obolensky and Fausto Ortica and Marco Pallavicini and Laszlo Papp and L. Perasso and S. Perasso and Andrea Pocar and G. Ranucci and Gioacchino Ranucci and Alessandro Re and Barbara Ricci and Aldo Romani and Nicola Rossi and A. V. Sabelnikov and Richard Saldanha and C. Vinacua Salvo and S Sch{\"o}nert and Hardy Simgen and Andrii Sotnikov and S. V. Sukhotin and Yury Suvorov and R. Tartaglia and Gemma Testera and Daniel Vignaud and Robert Bruce Vogelaar and F. v. Feilitzsch and J{\"u}rgen Winter and Michael Wojcik and Alexander Wright and Markus Wurm and Zhenhua Xu and O. A. Zaimidoroga and Sandra Zavatarelli},
  year={2013}
}
Abstract We present a measurement of the geo-neutrino signal obtained from 1353 days of data with the Borexino detector at Laboratori Nazionali del Gran Sasso in Italy. With a fiducial exposure of ( 3.69 ± 0.16 ) × 10 31 proton × year after all selection cuts and background subtraction, we detected ( 14.3 ± 4.4 ) geo-neutrino events assuming a fixed chondritic mass Th/U ratio of 3.9. This corresponds to a geo-neutrino signal S geo = ( 38.8 ± 12.0 ) TNU with just a 6 × 10 − 6 probability for a… CONTINUE READING

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