Measurement of geo-neutrinos from 1353 days of Borexino

G. Bellini; J. Benziger; D. Bick; G. Bonfini; D. Bravo; M. Buizza Avanzini; B. Caccianiga; L. Cadonati; F. Calaprice; P. Cavalcante; A. Chavarria; A. Chepurnov; D. D'Angelo; S. Davini; A. Derbin; A. Empl; A. Etenko; G. Fiorentini; K. Fomenko; D. Franco; C. Galbiati; S. Gazzana; C. Ghiano; M. Giammarchi; M. Goeger-Neff; A. Goretti; L. Grandi; C. Hagner; E. Hungerford; Aldo Ianni; Andrea Ianni; V. V. Kobychev; D. Korablev; G. Korga; Y. Koshio; D. Kryn; M. Laubenstein; T. Lewke; E. Litvinovich; B. Loer; P. Lombardi; F. Lombardi; L. Ludhova; G. Lukyanchenko; I. Machulin; S. Manecki; W. Maneschg; F. Mantovani; G. Manuzio; Q. Meindl; E. Meroni; L. Miramonti; M. Misiaszek; P. Mosteiro; V. Muratova; L. Oberauer; M. Obolensky; F. Ortica; K. Otis; M. Pallavicini; L. Papp; L. Perasso; S. Perasso; A. Pocar; G. Ranucci; A. Razeto; A. Re; B. Ricci; A. Romani; N. Rossi; A. Sabelnikov; R. Saldanha; C. Salvo; S. Schönert; H. Simgen; M. Skorokhvatov; O. Smirnov; A. Sotnikov; S. Sukhotin; Y. Suvorov; R. Tartaglia; G. Testera; D. Vignaud; R. B. Vogelaar; F. von Feilitzsch; J. Winter; M. Wojcik; A. Wright; M. Wurm; J. Xu; O. Zaimidoroga; S. Zavatarelli; G. Zuzel

doi:10.1016/j.physletb.2013.04.030

Measurement of geo-neutrinos from 1353 days of Borexino

G. Bellini, J. Benziger, D. Bick, G. Bonfini, D. Bravo, M. Buizza Avanzini, B. Caccianiga, L. Cadonati, F. Calaprice, P. Cavalcante, A. Chavarria, A. Chepurnov, D. D'Angelo, S. Davini, A. Derbin, A. Empl, A. Etenko, G. Fiorentini, K. Fomenko, D. FrancoC. Galbiati, S. Gazzana, C. Ghiano, M. Giammarchi, M. Goeger-Neff, A. Goretti, L. Grandi, C. Hagner, E. Hungerford, Aldo Ianni, Andrea Ianni, V. V. Kobychev, D. Korablev, G. Korga, Y. Koshio, D. Kryn, M. Laubenstein, T. Lewke, E. Litvinovich, B. Loer, P. Lombardi, F. Lombardi, L. Ludhova, G. Lukyanchenko, I. Machulin, S. Manecki, W. Maneschg, F. Mantovani, G. Manuzio, Q. Meindl, E. Meroni, L. Miramonti, M. Misiaszek, P. Mosteiro, V. Muratova, L. Oberauer, M. Obolensky, F. Ortica, K. Otis, M. Pallavicini, L. Papp, L. Perasso, S. Perasso, A. Pocar, G. Ranucci, A. Razeto, A. Re, B. Ricci, A. Romani, N. Rossi, A. Sabelnikov, R. Saldanha, C. Salvo, S. Schönert, H. Simgen, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, G. Testera, D. Vignaud, R. B. Vogelaar, F. von Feilitzsch, J. Winter, M. Wojcik, A. Wright, M. Wurm, J. Xu, O. Zaimidoroga, S. Zavatarelli, G. Zuzel

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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)×10³¹ 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 null geo-neutrino measurement. With U and Th left as free parameters in the fit, the relative signals are S_Th=(10.6±12.7)TNU and S_U=(26.5±19.5)TNU. Borexino data alone are compatible with a mantle geo-neutrino signal of (15.4±12.3)TNU, while a combined analysis with the KamLAND data allows to extract a mantle signal of (14.1±8.1)TNU. Our measurement of 31.2-6.1+7.0 reactor anti-neutrino events is in agreement with expectations in the presence of neutrino oscillations.

Original language	English (US)
Pages (from-to)	295-300
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	722
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2013.04.030
State	Published - May 24 2013

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Keywords

Anti-neutrinos from reactors
Geo-neutrino
Neutrino detector
Radiogenic heat

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10.1016/j.physletb.2013.04.030

Cite this

Bellini, G., Benziger, J., Bick, D., Bonfini, G., Bravo, D., Buizza Avanzini, M., Caccianiga, B., Cadonati, L., Calaprice, F., Cavalcante, P., Chavarria, A., Chepurnov, A., D'Angelo, D., Davini, S., Derbin, A., Empl, A., Etenko, A., Fiorentini, G., Fomenko, K., ... Zuzel, G. (2013). Measurement of geo-neutrinos from 1353 days of Borexino. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 722(4-5), 295-300. https://doi.org/10.1016/j.physletb.2013.04.030

@article{5ec4fba40d69438186155c59daf0742d,

title = "Measurement of geo-neutrinos from 1353 days of Borexino",

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)×1031 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 Sgeo=(38.8±12.0)TNU with just a 6×10-6 probability for a null geo-neutrino measurement. With U and Th left as free parameters in the fit, the relative signals are STh=(10.6±12.7)TNU and SU=(26.5±19.5)TNU. Borexino data alone are compatible with a mantle geo-neutrino signal of (15.4±12.3)TNU, while a combined analysis with the KamLAND data allows to extract a mantle signal of (14.1±8.1)TNU. Our measurement of 31.2-6.1+7.0 reactor anti-neutrino events is in agreement with expectations in the presence of neutrino oscillations.",

keywords = "Anti-neutrinos from reactors, Geo-neutrino, Neutrino detector, Radiogenic heat",

author = "G. Bellini and J. Benziger and D. Bick and G. Bonfini and D. Bravo and {Buizza Avanzini}, M. and B. Caccianiga and L. Cadonati and F. Calaprice and P. Cavalcante and A. Chavarria and A. Chepurnov and D. D'Angelo and S. Davini and A. Derbin and A. Empl and A. Etenko and G. Fiorentini and K. Fomenko and D. Franco and C. Galbiati and S. Gazzana and C. Ghiano and M. Giammarchi and M. Goeger-Neff and A. Goretti and L. Grandi and C. Hagner and E. Hungerford and Aldo Ianni and Andrea Ianni and Kobychev, {V. V.} and D. Korablev and G. Korga and Y. Koshio and D. Kryn and M. Laubenstein and T. Lewke and E. Litvinovich and B. Loer and P. Lombardi and F. Lombardi and L. Ludhova and G. Lukyanchenko and I. Machulin and S. Manecki and W. Maneschg and F. Mantovani and G. Manuzio and Q. Meindl and E. Meroni and L. Miramonti and M. Misiaszek and P. Mosteiro and V. Muratova and L. Oberauer and M. Obolensky and F. Ortica and K. Otis and M. Pallavicini and L. Papp and L. Perasso and S. Perasso and A. Pocar and G. Ranucci and A. Razeto and A. Re and B. Ricci and A. Romani and N. Rossi and A. Sabelnikov and R. Saldanha and C. Salvo and S. Sch{\"o}nert and H. Simgen and M. Skorokhvatov and O. Smirnov and A. Sotnikov and S. Sukhotin and Y. Suvorov and R. Tartaglia and G. Testera and D. Vignaud and Vogelaar, {R. B.} and {von Feilitzsch}, F. and J. Winter and M. Wojcik and A. Wright and M. Wurm and J. Xu and O. Zaimidoroga and S. Zavatarelli and G. Zuzel",

note = "Funding Information: We are extremely grateful to E. Padovani, for information about CANDU fuel, to J. Mandula for providing us detailed data on monthly load factor for each nuclear cores in the world, and to G. Alimonti, M. Lissia, W. F. McDonough for useful discussions. The Borexino program is made possible by funding from INFN (Italy), NSF (USA), BMBF , DFG ( OB 168/1-1 ), MPG , and the Garching accelerator laboratory MLL (Germany), Russian Foundation for Basic Research (Grant 12-02-12116 ) (Russia), MNiSW (Poland), and the UnivEarthS LabEx programme ( ANR-11-IDEX-0005-02 ) (France). We acknowledge the generous support of the Gran Sasso National Laboratory (LNGS) .",

year = "2013",

month = may,

day = "24",

doi = "10.1016/j.physletb.2013.04.030",

language = "English (US)",

volume = "722",

pages = "295--300",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4-5",

}

Bellini, G, Benziger, J, Bick, D, Bonfini, G, Bravo, D, Buizza Avanzini, M, Caccianiga, B, Cadonati, L, Calaprice, F, Cavalcante, P, Chavarria, A, Chepurnov, A, D'Angelo, D, Davini, S, Derbin, A, Empl, A, Etenko, A, Fiorentini, G, Fomenko, K, Franco, D, Galbiati, C, Gazzana, S, Ghiano, C, Giammarchi, M, Goeger-Neff, M, Goretti, A, Grandi, L, Hagner, C, Hungerford, E, Ianni, A, Ianni, A, Kobychev, VV, Korablev, D, Korga, G, Koshio, Y, Kryn, D, Laubenstein, M, Lewke, T, Litvinovich, E, Loer, B, Lombardi, P, Lombardi, F, Ludhova, L, Lukyanchenko, G, Machulin, I, Manecki, S, Maneschg, W, Mantovani, F, Manuzio, G, Meindl, Q, Meroni, E, Miramonti, L, Misiaszek, M, Mosteiro, P, Muratova, V, Oberauer, L, Obolensky, M, Ortica, F, Otis, K, Pallavicini, M, Papp, L, Perasso, L, Perasso, S, Pocar, A, Ranucci, G, Razeto, A, Re, A, Ricci, B, Romani, A, Rossi, N, Sabelnikov, A, Saldanha, R, Salvo, C, Schönert, S, Simgen, H, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Sukhotin, S, Suvorov, Y, Tartaglia, R, Testera, G, Vignaud, D, Vogelaar, RB, von Feilitzsch, F, Winter, J, Wojcik, M, Wright, A, Wurm, M, Xu, J, Zaimidoroga, O, Zavatarelli, S & Zuzel, G 2013, 'Measurement of geo-neutrinos from 1353 days of Borexino', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 722, no. 4-5, pp. 295-300. https://doi.org/10.1016/j.physletb.2013.04.030

TY - JOUR

T1 - Measurement of geo-neutrinos from 1353 days of Borexino

AU - Bellini, G.

AU - Benziger, J.

AU - Bick, D.

AU - Bonfini, G.

AU - Bravo, D.

AU - Buizza Avanzini, M.

AU - Caccianiga, B.

AU - Cadonati, L.

AU - Calaprice, F.

AU - Cavalcante, P.

AU - Chavarria, A.

AU - Chepurnov, A.

AU - D'Angelo, D.

AU - Davini, S.

AU - Derbin, A.

AU - Empl, A.

AU - Etenko, A.

AU - Fiorentini, G.

AU - Fomenko, K.

AU - Franco, D.

AU - Galbiati, C.

AU - Gazzana, S.

AU - Ghiano, C.

AU - Giammarchi, M.

AU - Goeger-Neff, M.

AU - Goretti, A.

AU - Grandi, L.

AU - Hagner, C.

AU - Hungerford, E.

AU - Ianni, Aldo

AU - Ianni, Andrea

AU - Kobychev, V. V.

AU - Korablev, D.

AU - Korga, G.

AU - Koshio, Y.

AU - Kryn, D.

AU - Laubenstein, M.

AU - Lewke, T.

AU - Litvinovich, E.

AU - Loer, B.

AU - Lombardi, P.

AU - Lombardi, F.

AU - Ludhova, L.

AU - Lukyanchenko, G.

AU - Machulin, I.

AU - Manecki, S.

AU - Maneschg, W.

AU - Mantovani, F.

AU - Manuzio, G.

AU - Meindl, Q.

AU - Meroni, E.

AU - Miramonti, L.

AU - Misiaszek, M.

AU - Mosteiro, P.

AU - Muratova, V.

AU - Oberauer, L.

AU - Obolensky, M.

AU - Ortica, F.

AU - Otis, K.

AU - Pallavicini, M.

AU - Papp, L.

AU - Perasso, L.

AU - Perasso, S.

AU - Pocar, A.

AU - Ranucci, G.

AU - Razeto, A.

AU - Re, A.

AU - Ricci, B.

AU - Romani, A.

AU - Rossi, N.

AU - Sabelnikov, A.

AU - Saldanha, R.

AU - Salvo, C.

AU - Schönert, S.

AU - Simgen, H.

AU - Skorokhvatov, M.

AU - Smirnov, O.

AU - Sotnikov, A.

AU - Sukhotin, S.

AU - Suvorov, Y.

AU - Tartaglia, R.

AU - Testera, G.

AU - Vignaud, D.

AU - Vogelaar, R. B.

AU - von Feilitzsch, F.

AU - Winter, J.

AU - Wojcik, M.

AU - Wright, A.

AU - Wurm, M.

AU - Xu, J.

AU - Zaimidoroga, O.

AU - Zavatarelli, S.

AU - Zuzel, G.

N1 - Funding Information: We are extremely grateful to E. Padovani, for information about CANDU fuel, to J. Mandula for providing us detailed data on monthly load factor for each nuclear cores in the world, and to G. Alimonti, M. Lissia, W. F. McDonough for useful discussions. The Borexino program is made possible by funding from INFN (Italy), NSF (USA), BMBF , DFG ( OB 168/1-1 ), MPG , and the Garching accelerator laboratory MLL (Germany), Russian Foundation for Basic Research (Grant 12-02-12116 ) (Russia), MNiSW (Poland), and the UnivEarthS LabEx programme ( ANR-11-IDEX-0005-02 ) (France). We acknowledge the generous support of the Gran Sasso National Laboratory (LNGS) .

PY - 2013/5/24

Y1 - 2013/5/24

N2 - 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)×1031 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 Sgeo=(38.8±12.0)TNU with just a 6×10-6 probability for a null geo-neutrino measurement. With U and Th left as free parameters in the fit, the relative signals are STh=(10.6±12.7)TNU and SU=(26.5±19.5)TNU. Borexino data alone are compatible with a mantle geo-neutrino signal of (15.4±12.3)TNU, while a combined analysis with the KamLAND data allows to extract a mantle signal of (14.1±8.1)TNU. Our measurement of 31.2-6.1+7.0 reactor anti-neutrino events is in agreement with expectations in the presence of neutrino oscillations.

AB - 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)×1031 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 Sgeo=(38.8±12.0)TNU with just a 6×10-6 probability for a null geo-neutrino measurement. With U and Th left as free parameters in the fit, the relative signals are STh=(10.6±12.7)TNU and SU=(26.5±19.5)TNU. Borexino data alone are compatible with a mantle geo-neutrino signal of (15.4±12.3)TNU, while a combined analysis with the KamLAND data allows to extract a mantle signal of (14.1±8.1)TNU. Our measurement of 31.2-6.1+7.0 reactor anti-neutrino events is in agreement with expectations in the presence of neutrino oscillations.

KW - Anti-neutrinos from reactors

KW - Geo-neutrino

KW - Neutrino detector

KW - Radiogenic heat

UR - http://www.scopus.com/inward/record.url?scp=84877596011&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877596011&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2013.04.030

DO - 10.1016/j.physletb.2013.04.030

M3 - Article

AN - SCOPUS:84877596011

SN - 0370-2693

VL - 722

SP - 295

EP - 300

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Measurement of geo-neutrinos from 1353 days of Borexino

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