Improved measurements of the neutrino mixing angle θ13 with the Double Chooz detector
Improved measurements of the neutrino mixing angle θ13 with the Double Chooz detector
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DOI：
10.1007/jhep10(2014)086
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发表时间：
2014-10
影响因子：
5.4
通讯作者：
Y. Abe;J. D. dos Anjos;J. Barrière;E. Baussan;I. Bekman;M. Bergevin;T. Bezerra;L. Bezrukov;E. Blucher;C. Buck;J. Busenitz;A. Cabrera;E. Caden;L. Camilleri;R. Carr;M. Cerrada;P. Chang;E. Chauveau;P. Chimenti;A. Collin;E. Conover;J. Conrad;J. I. Crespo-Anadón;K. Crum;A. Cucoanes;E. Damon;J. Dawson;J. Dhooghe;D. Dietrich;Z. Djurcic;M. Dracos;M. Elnimr;A. Etenko;M. Fallot;F. von Feilitzsch;J. Felde;S. Fernandes;V. Fischer;D. Franco;M. Franke;H. Furuta;I. Gil-Botella;L. Giot;M. Göger-Neff;L. Gonzalez;L. Goodenough;M. Goodman;C. Grant;N. Haag;T. Hara;J. Haser;M. Hofmann;G. Horton-Smith;A. Hourlier;M. Ishitsuka;J. Jochum;C. Jollet;F. Kaether;L. Kalousis;Y. Kamyshkov;D. M. Kaplan;T. Kawasaki;E. Kemp;H. de Kerret;D. Kryn;M. Kuze;T. Lachenmaier;C. Lane;T. Lasserre;A. Letourneau;D. Lhuillier;H. Lima;M. Lindner;J. M. López-Castaño;J. LoSecco;B. Lubsandorzhiev;S. Lucht;J. Maeda;C. Mariani;J. Maricic;J. Martino;T. Matsubara;G. Mention;A. Meregaglia;T. Miletić;R. Milincic;A. Minotti;Y. Nagasaka;Y. Nikitenko;P. Novella;L. Oberauer;M. Obolensky;A. Onillon;A. Osborn;C. Palomares;I. Pepe;S. Perasso;P. Pfahler;A. Porta;G. Pronost;J. Reichenbacher;B. Reinhold;M. Röhling;R. Roncin;S. Roth;B. Rybolt;Y. Sakamoto;R. Santorelli;A. Schilithz;S. Schönert;S. Schoppmann;M. Shaevitz;R. Sharankova;S. Shimojima;D. Shrestha;V. Sibille;V. Sinev;M. Skorokhvatov;E. Smith;J. Spitz;A. Stahl;I. Stancu;L. Stokes;M. Strait;A. Stüken;F. Suekane;S. Sukhotin;T. Sumiyoshi;Y. Sun;R. Svoboda;K. Terao;A. Tonazzo;H. T. Thi;G. Valdiviesso;N. Vassilopoulos;C. Veyssière;M. Vivier;S. Wagner;N. Walsh;H. Watanabe;C. Wiebusch;L. Winslow;M. Wurm;G. Yang;F. Yermia;V. Zimmer
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文献类型：
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作者：
Y. Abe;J. D. dos Anjos;J. Barrière;E. Baussan;I. Bekman;M. Bergevin;T. Bezerra;L. Bezrukov;E. Blucher;C. Buck;J. Busenitz;A. Cabrera;E. Caden;L. Camilleri;R. Carr;M. Cerrada;P. Chang;E. Chauveau;P. Chimenti;A. Collin;E. Conover;J. Conrad;J. I. Crespo-Anadón;K. Crum;A. Cucoanes;E. Damon;J. Dawson;J. Dhooghe;D. Dietrich;Z. Djurcic;M. Dracos;M. Elnimr;A. Etenko;M. Fallot;F. von Feilitzsch;J. Felde;S. Fernandes;V. Fischer;D. Franco;M. Franke;H. Furuta;I. Gil-Botella;L. Giot;M. Göger-Neff;L. Gonzalez;L. Goodenough;M. Goodman;C. Grant;N. Haag;T. Hara;J. Haser;M. Hofmann;G. Horton-Smith;A. Hourlier;M. Ishitsuka;J. Jochum;C. Jollet;F. Kaether;L. Kalousis;Y. Kamyshkov;D. M. Kaplan;T. Kawasaki;E. Kemp;H. de Kerret;D. Kryn;M. Kuze;T. Lachenmaier;C. Lane;T. Lasserre;A. Letourneau;D. Lhuillier;H. Lima;M. Lindner;J. M. López-Castaño;J. LoSecco;B. Lubsandorzhiev;S. Lucht;J. Maeda;C. Mariani;J. Maricic;J. Martino;T. Matsubara;G. Mention;A. Meregaglia;T. Miletić;R. Milincic;A. Minotti;Y. Nagasaka;Y. Nikitenko;P. Novella;L. Oberauer;M. Obolensky;A. Onillon;A. Osborn;C. Palomares;I. Pepe;S. Perasso;P. Pfahler;A. Porta;G. Pronost;J. Reichenbacher;B. Reinhold;M. Röhling;R. Roncin;S. Roth;B. Rybolt;Y. Sakamoto;R. Santorelli;A. Schilithz;S. Schönert;S. Schoppmann;M. Shaevitz;R. Sharankova;S. Shimojima;D. Shrestha;V. Sibille;V. Sinev;M. Skorokhvatov;E. Smith;J. Spitz;A. Stahl;I. Stancu;L. Stokes;M. Strait;A. Stüken;F. Suekane;S. Sukhotin;T. Sumiyoshi;Y. Sun;R. Svoboda;K. Terao;A. Tonazzo;H. T. Thi;G. Valdiviesso;N. Vassilopoulos;C. Veyssière;M. Vivier;S. Wagner;N. Walsh;H. Watanabe;C. Wiebusch;L. Winslow;M. Wurm;G. Yang;F. Yermia;V. Zimmer
双Chooz实验提出了改进的中微子混合角θ 13的测量方法，使用了467.90个活日收集的数据，这些数据来自位于Chooz核电站两个反应堆堆芯平均距离1050米的探测器。与以前的出版物相比，已经开发了几种新技术来显著减少背景和系统不确定性，同时提高了信号的效率。θ 13的值测量为sin 2 2θ 13= 0.090+ 0.032−0.029从观测到的能谱拟合。与上述观测到的4兆电子伏提示信号能量的反应堆预测的偏差和可能的解释也被报道。通过与观测速率的拟合得到了一个一致的θ 13值，该值独立于谱形状和背景估计，证明了尽管存在观测失真，θ 13测量的鲁棒性。
The Double Chooz experiment presents improved measurements of the neutrino mixing angle θ 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 thesignal has increased. The value of θ 13 is measured to be sin 2 2θ 13= 0.090+ 0.032− 0.029 from a fit to the observed energy spectrum. Deviations from the reactorprediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of θ 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 θ 13 measurement despite the observed distortion.