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Book ; Online: Reactor Rate Modulation oscillation analysis with two detectors in Double Chooz

Double Chooz Collaboration / Abrahão, T. / Almazan, H. / Anjos, J. C. dos / Appel, S. / Bekman, I. / Bezerra, T. J. C. / Bezrukov, L. / Blucher, E. / Brugière, T. / Buck, C. / Busenitz, J. / Cabrera, A. / Cerrada, M. / Chauveau, E. / Chimenti, P. / Dawson, J. V. / Djurcic, Z. / Etenko, A. /

Furuta, H. / Gil-Botella, I. / Gonzalez, L. F. G. / Goodman, M. C. / Hara, T. / Hellwig, D. / Hourlier, A. / Ishitsuka, M. / Jochum, J. / Jollet, C. / Kale, K. / Kaneda, M. / Kawasaki, T. / Kemp, E. / de Kerret, H. / Kryn, D. / Kuze, M. / Lachenmaier, T. / Lane, C. E. / Lasserre, T. / Lastoria, C. / Lhuillier, D. / Lima Jr, H. P. / Lindner, M. / López-Castaño, J. M. / LoSecco, J. M. / Lubsandorzhiev, B. / Maeda, J. / Mariani, C. / Maricic, J. / Martino, J. / Matsubara, T. / Mention, G. / Meregaglia, A. / Miletic, T. / Milincic, R. / Minotti, A. / Navas-Nicolás, D. / Novella, P. / Oberauer, L. / Obolensky, M. / Onillon, A. / Oralbaev, A. / Palomares, C. / Pepe, I. M. / Pronost, G. / Reichenbacher, J. / Reinhold, B. / Schönert, S. / Schoppmann, S. / Sharankova, R. / Sibille, V. / Sinev, V. / Skorokhvatov, M. / Soldin, P. / Stahl, A. / Stancu, I. / Stokes, L. F. F. / Suekane, F. / Sukhotin, S. / Sumiyoshi, T. / Sun, Y. / Viaud, B. / Vivier, M. / Wagner, S. / Wiebusch, C. / Yang, G. / Yermia, F.

2020

Abstract: A $\theta_{13}$ oscillation analysis based on the observed antineutrino rates at the Double Chooz far and near detectors for different reactor power conditions is presented. This approach provides a so far unique simultaneous determination of $\theta_{13} ...

Abstract	A $\theta_{13}$ oscillation analysis based on the observed antineutrino rates at the Double Chooz far and near detectors for different reactor power conditions is presented. This approach provides a so far unique simultaneous determination of $\theta_{13}$ and the total background rates without relying on any assumptions on the specific background contributions. The analysis comprises 865 days of data collected in both detectors with at least one reactor in operation. The oscillation results are enhanced by the use of 24.06 days (12.74 days) of reactor-off data in the far (near) detector. The analysis considers the \nue interactions up to a visible energy of 8.5 MeV, using the events at higher energies to build a cosmogenic background model considering fast-neutrons interactions and $^{9}$Li decays. The background-model-independent determination of the mixing angle yields sin$^2(2\theta_{13})=0.094\pm0.017$, being the best-fit total background rates fully consistent with the cosmogenic background model. A second oscillation analysis is also performed constraining the total background rates to the cosmogenic background estimates. While the central value is not significantly modified due to the consistency between the reactor-off data and the background estimates, the addition of the background model reduces the uncertainty on $\theta_{13}$ to 0.015. Along with the oscillation results, the normalization of the anti-neutrino rate is measured with a precision of 0.86\%, reducing the 1.43\% uncertainty associated to the expectation.
Keywords	High Energy Physics - Experiment ; Physics - Instrumentation and Detectors
Subject code	660
Publishing date	2020-07-27
Publishing country	us
Document type	Book ; Online
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Article ; Online: Test of Electric Charge Conservation with Borexino.

Agostini, M / Appel, S / Bellini, G / Benziger, J / Bick, D / Bonfini, G / Bravo, D / Caccianiga, B / Calaprice, F / Caminata, A / Cavalcante, P / Chepurnov, A / D'Angelo, D / Davini, S / Derbin, A / Di Noto, L / Drachnev, I / Empl, A / Etenko, A /

Fomenko, K / Franco, D / Gabriele, F / Galbiati, C / Ghiano, C / Giammarchi, M / Goeger-Neff, M / Goretti, A / Gromov, M / Hagner, C / Hungerford, E / Ianni, Aldo / Ianni, Andrea / Jedrzejczak, K / Kaiser, M / Kobychev, V / Korablev, D / Korga, G / Kryn, D / Laubenstein, M / Lehnert, B / Litvinovich, E / Lombardi, F / Lombardi, P / Ludhova, L / Lukyanchenko, G / Machulin, I / Manecki, S / Maneschg, W / Marcocci, S / Meroni, E / Meyer, M / Miramonti, L / Misiaszek, M / Montuschi, M / Mosteiro, P / Muratova, V / Neumair, B / Oberauer, L / Obolensky, M / Ortica, F / Otis, K / Pallavicini, M / Papp, L / Perasso, L / Pocar, A / Ranucci, G / Razeto, A / Re, A / Romani, A / Roncin, R / Rossi, N / Schönert, S / Semenov, D / Simgen, H / Skorokhvatov, M / Smirnov, O / Sotnikov, A / Sukhotin, S / Suvorov, Y / Tartaglia, R / Testera, G / Thurn, J / Toropova, M / Unzhakov, E / Vishneva, A / Vogelaar, R B / von Feilitzsch, F / Wang, H / Weinz, S / Winter, J / Wojcik, M / Wurm, M / Yokley, Z / Zaimidoroga, O / Zavatarelli, S / Zuber, K / Zuzel, G

Physical review letters

2015 Volume 115, Issue 23, Page(s) 231802

Abstract: Borexino is a liquid scintillation detector located deep underground at the Laboratori Nazionali del Gran Sasso (LNGS, Italy). Thanks to the unmatched radio purity of the scintillator, and to the well understood detector response at low energy, a new ... ...

Abstract	Borexino is a liquid scintillation detector located deep underground at the Laboratori Nazionali del Gran Sasso (LNGS, Italy). Thanks to the unmatched radio purity of the scintillator, and to the well understood detector response at low energy, a new limit on the stability of the electron for decay into a neutrino and a single monoenergetic photon was obtained. This new bound, τ≥6.6×10^{28} yr at 90% C.L., is 2 orders of magnitude better than the previous limit.
Language	English
Publishing date	2015-12-04
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.115.231802
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Article ; Online: Lifetimes of (214)Po and (212)Po measured with Counting Test Facility at Gran Sasso National Laboratory.

Miramonti, L / Bellini, G / Benziger, J / Bick, D / Bonfini, G / Bravo, D / Buizza Avanzini, M / Caccianiga, B / Cadonati, L / Calaprice, F / Carraro, C / Cavalcante, P / Chavarria, A / Chubakov, V / D'Angelo, D / Davini, S / Derbin, A / Etenko, A / Fomenko, K /

Franco, D / Galbiati, C / Gazzana, S / Ghiano, C / Giammarchi, M / Göger-Neff, M / Goretti, A / Grandi, L / Guardincerri, E / Hardy, S / Ianni, Aldo / Ianni, Andrea / Kobychev, V / Korablev, D / Korga, G / Koshio, Y / Kryn, D / Laubenstein, M / Lewke, T / Lissia, M / Litvinovich, E / Loer, B / Lombardi, F / Lombardi, P / Ludhova, L / Machulin, I / Manecki, S / Maneschg, W / Mantovani, F / Manuzio, G / Meindl, Q / Meroni, E / Misiaszek, M / Montanari, D / Mosteiro, P / Muratova, V / Nisi, S / Oberauer, L / Obolensky, M / Ortica, F / Otis, K / Pallavicini, M / Papp, L / Perasso, L / Perasso, S / Pocar, A / Ranucci, G / Razeto, A / Re, A / 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, R B / von Feilitzsch, F / Winter, J / Wojcik, M / Wright, A / Wurm, M / Xhixha, G / Xu, J / Zaimidoroga, O / Zavatarelli, S / Zuzel, G

Journal of environmental radioactivity

2014 Volume 138, Page(s) 444–446

Abstract: The decays of (214)Po into (210)Pb and of (212)Po into (208)Pb tagged by the previous decays from (214)Bi and (212)Bi have been studied inserting quartz vials inside the Counting Test Facility (CTF) at the underground laboratory in Gran Sasso (LNGS). We ... ...

Abstract	The decays of (214)Po into (210)Pb and of (212)Po into (208)Pb tagged by the previous decays from (214)Bi and (212)Bi have been studied inserting quartz vials inside the Counting Test Facility (CTF) at the underground laboratory in Gran Sasso (LNGS). We find that the mean lifetime of (214)Po is (236.00 ± 0.42(stat) ± 0.15(syst)) μs and that of (212)Po is (425.1 ± 0.9(stat) ± 1.2(syst)) ns. Our results are compatible with previous measurements, have a much better signal to background ratio, and reduce the overall uncertainties.
MeSH term(s)	Alpha Particles ; Half-Life ; Laboratories ; Lead Radioisotopes/analysis ; Polonium/analysis ; Radiation Monitoring ; Radioactive Pollutants/analysis
Chemical Substances	Lead Radioisotopes ; Radioactive Pollutants ; Polonium (DQY03U61EJ)
Language	English
Publishing date	2014-12
Publishing country	England
Document type	Journal Article
ZDB-ID	1483112-0
ISSN	1879-1700 ; 0265-931X
ISSN (online)	1879-1700
ISSN	0265-931X
DOI	10.1016/j.jenvrad.2014.02.025
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Article ; Online: First evidence of pep solar neutrinos by direct detection in Borexino.

Bellini, G / Benziger, J / Bick, D / Bonetti, S / Bonfini, G / Bravo, D / Buizza Avanzini, M / Caccianiga, B / Cadonati, L / Calaprice, F / Carraro, C / Cavalcante, P / Chavarria, A / Chepurnov, A / D'Angelo, D / Davini, S / Derbin, A / Etenko, A / Fomenko, K /

Franco, D / Galbiati, C / Gazzana, S / Ghiano, C / Giammarchi, M / Goeger-Neff, M / Goretti, A / Grandi, L / Guardincerri, E / Hardy, S / Ianni, Aldo / Ianni, Andrea / Korablev, D / Korga, G / Koshio, Y / Kryn, D / Laubenstein, M / Lewke, T / Litvinovich, E / Loer, B / Lombardi, F / Lombardi, P / Ludhova, L / Machulin, I / Manecki, S / Maneschg, W / Manuzio, G / Meindl, Q / Meroni, E / Miramonti, L / Misiaszek, M / Montanari, D / Mosteiro, P / Muratova, V / Oberauer, L / Obolensky, M / Ortica, F / Otis, K / Pallavicini, M / Papp, L / Perasso, L / Perasso, S / Pocar, A / Quirk, J / Raghavan, R S / Ranucci, G / Razeto, A / Re, A / Romani, A / 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, R B / von Feilitzsch, F / Winter, J / Wojcik, M / Wright, A / Wurm, M / Xu, J / Zaimidoroga, O / Zavatarelli, S / Zuzel, G

Physical review letters

2012 Volume 108, Issue 5, Page(s) 51302

Abstract: We observed, for the first time, solar neutrinos in the 1.0-1.5 MeV energy range. We determined the rate of pep solar neutrino interactions in Borexino to be 3.1±0.6{stat}±0.3{syst} counts/(day·100 ton). Assuming the pep neutrino flux predicted by the ... ...

Abstract	We observed, for the first time, solar neutrinos in the 1.0-1.5 MeV energy range. We determined the rate of pep solar neutrino interactions in Borexino to be 3.1±0.6{stat}±0.3{syst} counts/(day·100 ton). Assuming the pep neutrino flux predicted by the standard solar model, we obtained a constraint on the CNO solar neutrino interaction rate of <7.9 counts/(day·100 ton) (95% C.L.). The absence of the solar neutrino signal is disfavored at 99.97% C.L., while the absence of the pep signal is disfavored at 98% C.L. The necessary sensitivity was achieved by adopting data analysis techniques for the rejection of cosmogenic {11}C, the dominant background in the 1-2 MeV region. Assuming the Mikheyev-Smirnov-Wolfenstein large mixing angle solution to solar neutrino oscillations, these values correspond to solar neutrino fluxes of (1.6±0.3)×10{8} cm{-2} s^{-1} and <7.7×10{8} cm{-2} s{-1} (95% C.L.), respectively, in agreement with both the high and low metallicity standard solar models. These results represent the first direct evidence of the pep neutrino signal and the strongest constraint of the CNO solar neutrino flux to date.
Language	English
Publishing date	2012-02-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.108.051302
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Precision measurement of the (7)Be solar neutrino interaction rate in Borexino.

Bellini, G / Benziger, J / Bick, D / Bonetti, S / Bonfini, G / Buizza Avanzini, M / Caccianiga, B / Cadonati, L / Calaprice, F / Carraro, C / Cavalcante, P / Chavarria, A / D'Angelo, D / Davini, S / Derbin, A / Etenko, A / Fomenko, K / Franco, D / Galbiati, C /

Gazzana, S / Ghiano, C / Giammarchi, M / Goeger-Neff, M / Goretti, A / Grandi, L / Guardincerri, E / Hardy, S / Ianni, Aldo / Ianni, Andrea / Kobychev, V / Korablev, D / Korga, G / Koshio, Y / Kryn, D / Laubenstein, M / Lewke, T / Litvinovich, E / Loer, B / Lombardi, F / Lombardi, P / Ludhova, L / Machulin, I / Manecki, S / Maneschg, W / Manuzio, G / Meindl, Q / Meroni, E / Miramonti, L / Misiaszek, M / Montanari, D / Mosteiro, P / Muratova, V / Oberauer, L / Obolensky, M / Ortica, F / Pallavicini, M / Papp, L / Peña-Garay, C / Perasso, L / Perasso, S / Pocar, A / Raghavan, R S / Ranucci, G / Razeto, A / Re, A / Romani, A / 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, R B / von Feilitzsch, F / Winter, J / Wojcik, M / Wright, A / Wurm, M / Xu, J / Zaimidoroga, O / Zavatarelli, S / Zuzel, G

Physical review letters

2011 Volume 107, Issue 14, Page(s) 141302

Abstract: The rate of neutrino-electron elastic scattering interactions from 862 keV (7)Be solar neutrinos in Borexino is determined to be 46.0±1.5(stat)(-1.6)(+1.5)(syst) counts/(day·100 ton). This corresponds to a ν(e)-equivalent (7)Be solar neutrino flux of (3. ...

Abstract	The rate of neutrino-electron elastic scattering interactions from 862 keV (7)Be solar neutrinos in Borexino is determined to be 46.0±1.5(stat)(-1.6)(+1.5)(syst) counts/(day·100 ton). This corresponds to a ν(e)-equivalent (7)Be solar neutrino flux of (3.10±0.15)×10(9) cm(-2) s(-1) and, under the assumption of ν(e) transition to other active neutrino flavours, yields an electron neutrino survival probability of 0.51±0.07 at 862 keV. The no flavor change hypothesis is ruled out at 5.0 σ. A global solar neutrino analysis with free fluxes determines Φ(pp)=6.06(-0.06)(+0.02)×10(10) cm(-2) s(-1) and Φ(CNO)<1.3×10(9) cm(-2) s(-1) (95% C.L.). These results significantly improve the precision with which the Mikheyev-Smirnov-Wolfenstein large mixing angle neutrino oscillation model is experimentally tested at low energy.
Language	English
Publishing date	2011-09-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.107.141302
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Cosmic-muon flux and annual modulation in Borexino at 3800 m water-equivalent depth

Bellini, G. / Benziger, J. / Bick, D. / Bonfini, G. / Bravo, D. / Avanzini, M. Buizza / Caccianiga, B. / Cadonati, L. / Calaprice, F. / Carraro, C. / Cavalcante, P. / Chavarria, A. / Chepurnov, A. / D'Angelo, D. / Davini, S. / Derbin, A. / Etenko, A. / von Feilitzsch, F. / Fomenko, K. /

Franco, D. / Galbiati, C. / Gazzana, S. / Ghiano, C. / Giammarchi, M. / Goeger-Neff, M. / Goretti, A. / Grandi, L. / Guardincerri, E. / Hagner, C. / Hardy, S. / Ianni, Aldo / Ianni, Andrea / Korablev, D. / Korga, G. / Koshio, Y. / Kryn, D. / Laubenstein, M. / Lewke, T. / Litvinovich, E. / Loer, B. / Lombardi, F. / Lombardi, P. / Ludhova, L. / Machulin, I. / Manecki, S. / Maneschg, W. / Manuzio, G. / Meindl, Q. / Meroni, E. / Miramonti, L. / Misiaszek, M. / Montanari, D. / Mosteiro, P. / Muratova, V. / Oberauer, L. / Obolensky, M. / Ortica, F. / Otis, K. / Pallavicini, M. / Papp, L. / Perasso, L. / Perasso, S. / Pocar, A. / Raghavan, R. S. / Ranucci, G. / Razeto, A. / Re, A. / Romani, A. / 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, R. B. / Winter, J. / Wojcik, M. / Wright, A. / Wurm, M. / Xu, J. / Zaimidoroga, O. / Zavatarelli, S. / Zuzel, G.

2012

Abstract: We have measured the muon flux at the underground Gran Sasso National Laboratory (3800 m w.e.) to be (3.41 \pm 0.01) \times 10-4m-2s-1 using four years of Borexino data. A modulation of this signal is observed with a period of (366\pm3) days and a ... ...

Abstract	We have measured the muon flux at the underground Gran Sasso National Laboratory (3800 m w.e.) to be (3.41 \pm 0.01) \times 10-4m-2s-1 using four years of Borexino data. A modulation of this signal is observed with a period of (366\pm3) days and a relative amplitude of (1.29 \pm 0.07)%. The measured phase is (179 \pm 6) days, corresponding to a maximum on the 28th of June. Using the most complete atmospheric data models available, muon rate fluctuations are shown to be positively correlated with atmospheric temperature, with an effective coefficient {\alpha}T = 0.93 \pm 0.04. This result represents the most precise study of the muon flux modulation for this site and is in good agreement with expectations. Comment: 14 pages, 8 figures, published on JCAP as JCAP05(2012)015 on May 15th 2012
Keywords	High Energy Physics - Experiment ; Astrophysics - Instrumentation and Methods for Astrophysics ; Physics - Atmospheric and Oceanic Physics
Subject code	551
Publishing date	2012-02-28
Publishing country	us
Document type	Book ; Online
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Book ; Online: Improved measurements of the neutrino mixing angle $\theta_{13}$ with the Double Chooz detector

Abe, Y. / Anjos, J. C. dos / Barriere, J. C. / Baussan, E. / Bekman, I. / Bergevin, M. / Bezerra, T. J. C. / Bezrukov, L. / Blucher, E. / Buck, C. / Busenitz, J. / Cabrera, A. / Caden, E. / Camilleri, L. / Carr, R. / Cerrada, M. / Chang, P. -J. / Chauveau, E. / Chimenti, P. /

Collin, A. P. / Conover, E. / Conrad, J. M. / Crespo-Anadón, J. I. / Crum, K. / Cucoanes, A. S. / Damon, E. / Dawson, J. V. / Dhooghe, J. / Dietrich, D. / Djurcic, Z. / Dracos, M. / Elnimr, M. / Etenko, A. / Fallot, M. / von Feilitzsch, F. / Felde, J. / Fernandes, S. M. / Fischer, V. / Franco, D. / Franke, M. / Furuta, H. / Gil-Botella, I. / Giot, L. / Göger-Neff, M. / Gonzalez, L. F. G. / Goodenough, L. / Goodman, M. C. / Grant, C. / Haag, N. / Hara, T. / Haser, J. / Hofmann, M. / Horton-Smith, G. A. / Hourlier, A. / Ishitsuka, M. / Jochum, J. / Jollet, C. / Kaether, F. / Kalousis, L. N. / Kamyshkov, Y. / Kaplan, D. M. / Kawasaki, T. / Kemp, E. / de Kerret, H. / Kryn, D. / Kuze, M. / Lachenmaier, T. / Lane, C. E. / Lasserre, T. / Letourneau, A. / Lhuillier, D. / Lima Jr, H. P. / Lindner, M. / López-Castaño, J. M. / LoSecco, J. M. / Lubsandorzhiev, B. / Lucht, S. / Maeda, J. / Mariani, C. / Maricic, J. / Martino, J. / Matsubara, T. / Mention, G. / Meregaglia, A. / Miletic, T. / Milincic, R. / Minotti, A. / Nagasaka, Y. / Nikitenko, Y. / Novella, P. / Oberauer, L. / Obolensky, M. / Onillon, A. / Osborn, A. / Palomares, C. / Pepe, I. M. / Perasso, S. / Pfahler, P. / Porta, A. / Pronost, G. / Reichenbacher, J. / Reinhold, B. / Röhling, M. / Roncin, R. / Roth, S. / Rybolt, B. / Sakamoto, Y. / Santorelli, R. / Schilithz, A. C. / Schönert, S. / Schoppmann, S. / Shaevitz, M. H. / Sharankova, R. / Shimojima, S. / Shrestha, D. / Sibille, V. / Sinev, V. / Skorokhvatov, M. / Smith, E. / Spitz, J. / Stahl, A. / Stancu, I. / Stokes, L. F. F. / Strait, M. / Stüken, A. / Suekane, F. / Sukhotin, S. / Sumiyoshi, T. / Sun, Y. / Svoboda, R. / Terao, K. / Tonazzo, A. / Thi, H. H. Trinh / Valdiviesso, G. / Vassilopoulos, N. / Veyssiere, C. / Vivier, M. / Wagner, S. / Walsh, N. / Watanabe, H. / Wiebusch, C. / Winslow, L. / Wurm, M. / Yang, G. / Yermia, F. / Zimmer, V.

2014

Abstract: The Double Chooz experiment presents improved measurements of the neutrino mixing angle $\theta_{13}$ using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear ... ...

Abstract	The Double Chooz experiment presents improved measurements of the neutrino mixing angle $\theta_{13}$ using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the $\bar\nu_{e}$ signal has increased. The value of $\theta_{13}$ is measured to be $\sin^{2}2\theta_{13} = 0.090 ^{+0.032}_{-0.029}$ from a fit to the observed energy spectrum. Deviations from the reactor $\bar\nu_{e}$ prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of $\theta_{13}$ is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the $\theta_{13}$ measurement despite the observed distortion. Comment: 44 pages, 25 figures. Figures 21 and 22 have been replaced (statistical error bars for bins above 8 MeV have become smaller). No other changes in the results of the paper; an Erratum submitted to JHEP
Keywords	High Energy Physics - Experiment ; Physics - Instrumentation and Detectors
Subject code	660
Publishing date	2014-06-30
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Direct measurement of the 7Be solar neutrino flux with 192 days of borexino data.

Arpesella, C / Back, H O / Balata, M / Bellini, G / Benziger, J / Bonetti, S / Brigatti, A / Caccianiga, B / Cadonati, L / Calaprice, F / Carraro, C / Cecchet, G / Chavarria, A / Chen, M / Dalnoki-Veress, F / D'Angelo, D / de Bari, A / de Bellefon, A / de Kerret, H /

Derbin, A / Deutsch, M / di Credico, A / di Pietro, G / Eisenstein, R / Elisei, F / Etenko, A / Fernholz, R / Fomenko, K / Ford, R / Franco, D / Freudiger, B / Galbiati, C / Gatti, F / Gazzana, S / Giammarchi, M / Giugni, D / Goeger-Neff, M / Goldbrunner, T / Goretti, A / Grieb, C / Hagner, C / Hampel, W / Harding, E / Hardy, S / Hartman, F X / Hertrich, T / Heusser, G / Ianni, Aldo / Ianni, Andrea / Joyce, M / Kiko, J / Kirsten, T / Kobychev, V / Korga, G / Korschinek, G / Kryn, D / Lagomarsino, V / Lamarche, P / Laubenstein, M / Lendvai, C / Leung, M / Lewke, T / Litvinovich, E / Loer, B / Lombardi, P / Ludhova, L / Machulin, I / Malvezzi, S / Manecki, S / Maneira, J / Maneschg, W / Manno, I / Manuzio, D / Manuzio, G / Martemianov, A / Masetti, F / Mazzucato, U / McCarty, K / McKinsey, D / Meindl, Q / Meroni, E / Miramonti, L / Misiaszek, M / Montanari, D / Monzani, M E / Muratova, V / Musico, P / Neder, H / Nelson, A / Niedermeier, L / Oberauer, L / Obolensky, M / Orsini, M / Ortica, F / Pallavicini, M / Papp, L / Parmeggiano, S / Perasso, L / Pocar, A / Raghavan, R S / Ranucci, G / Rau, W / Razeto, A / Resconi, E / Risso, P / Romani, A / Rountree, D / Sabelnikov, A / Saldanha, R / Salvo, C / Schimizzi, D / Schönert, S / Shutt, T / Simgen, H / Skorokhvatov, M / Smirnov, O / Sonnenschein, A / Sotnikov, A / Sukhotin, S / Suvorov, Y / Tartaglia, R / Testera, G / Vignaud, D / Vitale, S / Vogelaar, R B / von Feilitzsch, F / von Hentig, R / von Hentig, T / Wojcik, M / Wurm, M / Zaimidoroga, O / Zavatarelli, S / Zuzel, G

Physical review letters

2008 Volume 101, Issue 9, Page(s) 91302

Abstract: We report the direct measurement of the 7Be solar neutrino signal rate performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso. The interaction rate of the 0.862 MeV 7Be neutrinos is 49+/-3stat+/-4syst counts/(day.100 ton). The ... ...

Abstract	We report the direct measurement of the 7Be solar neutrino signal rate performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso. The interaction rate of the 0.862 MeV 7Be neutrinos is 49+/-3stat+/-4syst counts/(day.100 ton). The hypothesis of no oscillation for 7Be solar neutrinos is inconsistent with our measurement at the 4sigma C.L. Our result is the first direct measurement of the survival probability for solar nu(e) in the transition region between matter-enhanced and vacuum-driven oscillations. The measurement improves the experimental determination of the flux of 7Be, pp, and CNO solar nu(e), and the limit on the effective neutrino magnetic moment using solar neutrinos.
Language	English
Publishing date	2008-08-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.101.091302
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Indication of reactor ν(e) disappearance in the Double Chooz experiment.

Abe, Y / Aberle, C / Akiri, T / dos Anjos, J C / Ardellier, F / Barbosa, A F / Baxter, A / Bergevin, M / Bernstein, A / Bezerra, T J C / Bezrukhov, L / Blucher, E / Bongrand, M / Bowden, N S / Buck, C / Busenitz, J / Cabrera, A / Caden, E / Camilleri, L /

Carr, R / Cerrada, M / Chang, P-J / Chimenti, P / Classen, T / Collin, A P / Conover, E / Conrad, J M / Cormon, S / Crespo-Anadón, J I / Cribier, M / Crum, K / Cucoanes, A / D'Agostino, M V / Damon, E / Dawson, J V / Dazeley, S / Dierckxsens, M / Dietrich, D / Djurcic, Z / Dracos, M / Durand, V / Efremenko, Y / Elnimr, M / Endo, Y / Etenko, A / Falk, E / Fallot, M / Fechner, M / von Feilitzsch, F / Felde, J / Fernandes, S M / Franco, D / Franke, A J / Franke, M / Furuta, H / Gama, R / Gil-Botella, I / Giot, L / Göger-Neff, M / Gonzalez, L F G / Goodman, M C / Goon, J T M / Greiner, D / Guillon, B / Haag, N / Hagner, C / Hara, T / Hartmann, F X / Hartnell, J / Haruna, T / Haser, J / Hatzikoutelis, A / Hayakawa, T / Hofmann, M / Horton-Smith, G A / Ishitsuka, M / Jochum, J / Jollet, C / Jones, C L / Kaether, F / Kalousis, L / Kamyshkov, Y / Kaplan, D M / Kawasaki, T / Keefer, G / Kemp, E / de Kerret, H / Kibe, Y / Konno, T / Kryn, D / Kuze, M / Lachenmaier, T / Lane, C E / Langbrandtner, C / Lasserre, T / Letourneau, A / Lhuillier, D / Lima, H P / Lindner, M / Liu, Y / López-Castanõ, J M / LoSecco, J M / Lubsandorzhiev, B K / Lucht, S / McKee, D / Maeda, J / Maesano, C N / Mariani, C / Maricic, J / Martino, J / Matsubara, T / Mention, G / Meregaglia, A / Miletic, T / Milincic, R / Milzstajn, A / Miyata, H / Motta, D / Mueller, Th A / Nagasaka, Y / Nakajima, K / Novella, P / Obolensky, M / Oberauer, L / Onillon, A / Osborn, A / Ostrovskiy, I / Palomares, C / Peeters, S J M / Pepe, I M / Perasso, S / Perrin, P / Pfahler, P / Porta, A / Potzel, W / Queval, R / Reichenbacher, J / Reinhold, B / Remoto, A / Reyna, D / Röhling, M / Roth, S / Rubin, H A / Sakamoto, Y / Santorelli, R / Sato, F / Schönert, S / Schoppmann, S / Schwan, U / Schwetz, T / Shaevitz, M H / Shrestha, D / Sida, J-L / Sinev, V / Skorokhvatov, M / Smith, E / Spitz, J / Stahl, A / Stancu, I / Strait, M / Stüken, A / Suekane, F / Sukhotin, S / Sumiyoshi, T / Sun, Y / Sun, Z / Svoboda, R / Tabata, H / Tamura, N / Terao, K / Tonazzo, A / Toups, M / Trinh Thi, H H / Veyssiere, C / Wagner, S / Watanabe, H / White, B / Wiebusch, C / Winslow, L / Worcester, M / Wurm, M / Yanovitch, E / Yermia, F / Zbiri, K / Zimmer, V

Physical review letters

2012 Volume 108, Issue 13, Page(s) 131801

Abstract: The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0.040(syst) was obtained in 101 days of running at the ... ...

Abstract	The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0.040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25 GW(th) reactors. The results were obtained from a single 10 m(3) fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin(2)2θ(13). Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin(2)2θ(13)=0.086±0.041(stat)±0.030(syst), or, at 90% C.L., 0.017<sin(2)2θ(13)<0.16.<br />
Language	English
Publishing date	2012-03-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.108.131801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Direct Measurement of Backgrounds using Reactor-Off Data in Double Chooz

Abe, Y. / Aberle, C. / Anjos, J. C. dos / Barriere, J. C. / Bergevin, M. / Bernstein, A. / Bezerra, T. J. C. / Bezrukhov, L. / Blucher, E. / Bowden, N. S. / Buck, C. / Busenitz, J. / Cabrera, A. / Caden, E. / Camilleri, L. / Carr, R. / Cerrada, M. / Chang, P. -J. / Chimenti, P. /

Classen, T. / Collin, A. P. / Conover, E. / Conrad, J. M. / Crespo-Anadon, J. I. / Crum, K. / Cucoanes, A. / D'Agostino, M. V. / Damon, E. / Dawson, J. V. / Dazeley, S. / Dietrich, D. / Djurcic, Z. / Dracos, M. / Durand, V. / Ebert, J. / Efremenko, Y. / Elnimr, M. / Erickson, A. / Etenko, A. / Fallot, M. / Fechner, M. / von Feilitzsch, F. / Felde, J. / Fernandes, S. M. / Fischer, V. / Franco, D. / Franke, A. J. / Franke, M. / Furuta, H. / Gama, R. / Gil-Botella, I. / Giot, L. / Göger-Neff, M. / Gonzalez, L. F. G. / Goodenough, L. / Goodman, M. C. / Goon, J. TM. / Greiner, D. / Haag, N. / Habib, S. / Hagner, C. / Hara, T. / Hartmann, F. X. / Haser, J. / Hatzikoutelis, A. / Hayakawa, T. / Hofmann, M. / Horton-Smith, G. A. / Hourlier, A. / Ishitsuka, M. / Jochum, J. / Jollet, C. / Jones, C. L. / Kaether, F. / Kalousis, L. N. / Kamyshkov, Y. / Kaplan, D. M. / Kawasaki, T. / Keefer, G. / Kemp, E. / de Kerret, H. / Kibe, Y. / Konno, T. / Kryn, D. / Kuze, M. / Lachenmaier, T. / Lane, C. E. / Langbrandtner, C. / Lasserre, T. / Letourneau, A. / Lhuillier, D. / Lima Jr, H. P. / Lindner, M. / Lopez-Castano, J. M. / LoSecco, J. M. / Lubsandorzhiev, B. K. / Lucht, S. / McKee, D. / Maeda, J. / Maesano, C. N. / Mariani, C. / Maricic, J. / Martino, J. / Matsubara, T. / Mention, G. / Meregaglia, A. / Meyer, M. / Miletic, T. / Milincic, R. / Miyata, H. / Mueller, Th. A. / Nagasaka, Y. / Nakajima, K. / Novella, P. / Obolensky, M. / Oberauer, L. / Onillon, A. / Osborn, A. / Ostrovskiy, I. / Palomares, C. / Pepe, I. M. / Perasso, S. / Perrin, P. / Pfahler, P. / Porta, A. / Potzel, W. / Pronost, G. / Reichenbacher, J. / Reinhold, B. / Remoto, A. / Röhling, M. / Roncin, R. / Roth, S. / Rybolt, B. / Sakamoto, Y. / Santorelli, R. / Sato, F. / Schönert, S. / Schoppmann, S. / Schwetz, T. / Shaevitz, M. H. / Shimojima, S. / Shrestha, D. / Sida, J-L. / Sinev, V. / Skorokhvatov, M. / Smith, E. / Spitz, J. / Stahl, A. / Stancu, I. / Stokes, L. F. F. / Strait, M. / Stüken, A. / Suekane, F. / Sukhotin, S. / Sumiyoshi, T. / Sun, Y. / Svoboda, R. / Terao, K. / Tonazzo, A. / Toups, M. / Thi, H. H. Trinh / Valdiviesso, G. / Veyssiere, C. / Wagner, S. / Watanabe, H. / White, B. / Wiebusch, C. / Winslow, L. / Worcester, M. / Wurm, M. / Yermia, F. / Zimmer, V.

2012

Abstract: Double Chooz is unique among modern reactor-based neutrino experiments studying $\bar \nu_e$ disappearance in that data can be collected with all reactors off. In this paper, we present data from 7.53 days of reactor-off running. Applying the same ... ...

Abstract	Double Chooz is unique among modern reactor-based neutrino experiments studying $\bar \nu_e$ disappearance in that data can be collected with all reactors off. In this paper, we present data from 7.53 days of reactor-off running. Applying the same selection criteria as used in the Double Chooz reactor-on oscillation analysis, a measured background rate of 1.0$\pm$0.4 events/day is obtained. The background model for accidentals, cosmogenic $\beta$-$n$-emitting isotopes, fast neutrons from cosmic muons, and stopped-$\mu$ decays used in the oscillation analysis is demonstrated to be correct within the uncertainties. Kinematic distributions of the events, which are dominantly cosmic-ray-produced correlated-background events, are provided. The background rates are scaled to the shielding depths of two other reactor-based oscillation experiments, Daya Bay and RENO. Comment: V2 has corrections to affiliations
Keywords	High Energy Physics - Experiment ; Nuclear Experiment
Subject code	660
Publishing date	2012-10-13
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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