Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of nu(e) interactions at the far detector
Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of nu(e) interactions at the far detector
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DOI：
10.1103/physrevd.96.092006
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发表时间：
2017-07
影响因子：
5
通讯作者：
K. Abe;O. Drapier;K. Huang;K. Huang;M. Barbi;C. Checchia;J. Kim;E. Mazzucato;C. Densham;R. Owen;S. Nakayama;S. Cartwright;R. A. Intonti;K. Okumura;T. Shirahige;F. Shaker;F. Shaker;P. Novella;F. S'anchez;Y. Suda;M. Avanzini;H. Sekiya;H. Sekiya;J. Kameda;H. Kakuno;P. Rodrigues;T. Mueller;A. Zalewska;M. Catanesi;A. Weber;M. Shiozawa;J. Holeczek;O. Mineev;S. Bienstock;G. Fiorentini;A. Mefodiev;S. Emery-Schrenk;S. Aoki;C. Riccio;T. Yano;T. Hiraki;G. Vasseur;M. McCarthy;R. Tacik;M. Khabibullin;M. Zito;I. Lamont;Y. Nakanishi;A. Knox;M. Ikeda;Y. Takeuchi;T. Ovsyannikova;S. Tobayama;M. Laveder;V. Palladino;M. Wascko;H. O'Keeffe;P. Lasorak;R. Wilson;J. Zalipska;T. Thakore;H. Sobel;D. Payne;J. Nowak;J. Harada;S. Roth;F. Lodovico;L. Thompson;A. Cudd;E. Rondio;M. Jiang;V. Matveev;A. Hiramoto;A. Shaikhiev;E. Kearns;H. Kim;T. Nakaya;K. McFarland;W. Ma;Y. Fukuda;T. Okusawa;J. Schwehr;A. Konaka;A. Cervera;D. Cherdack;D. Hadley;S. Mine;Rayner;A. Garcia;R. Tamura;A. Missert;D. Shaw;Y. Nishimura;T. Kajita;K. Mavrokoridis;X. Lu;C. Barry;C. Walter;S. Dennis;S. Manly;A. Ereditato;B. Rossi;K. Kowalik;N. McCauley;A. Rychter;D. Wark;M. Nakahata;S. Dolan;Y. Petrov;M. Vagins;D. Hansen;J. Haigh;J. Martin;M. Yokoyama;T. Tsukamoto;M. Lawe;C. Bronner;S. Martynenko;T. Kobayashi;L. Haegel;R. Shah;A. Finch;C. Giganti;M. Pavin;S. Johnson;T. Campbell;M. Scott;B. Popov;M. Friend;S. Berkman;S. Berkman;K. Scholberg;D. Coplowe;T. Feusels;T. Koga;J. Kisiel;K. Zaremba;M. Miura;M. Tzanov;E. Zimmerman;Y. Fujii;A. Dabrowska;K. Mahn;M. Gonin;A. Bravar;S. Bordoni;S. Bordoni;M. Tada;T. Sekiguchi;E. Scantamburlo;Z. Vallari;K. Nakamura;C. Vilela;V. Paolone;J. Imber;M. Ziembicki;D. Sgalaberna;Y. Seiya;Y. Koshio;S. Yen;T. Dealtry;A. Ichikawa;D. Brailsford;P. Paudyal;P. Koller;M. Wilking;T. Katori;E. Radicioni;N. Yershov;T. Radermacher;J. Amey;L. Maret;A. Takeda;A. Marino;M. Lamoureux;J. Insler;M. Licciardi;Xin Li;J. Poutissou;Y. Ashida;B. Jamieson;M. Posiadala-Zezula;P. Stowell;S. Bhadra;Y. Suzuki;S. Suzuki;Y. Hayato;C. Wret;A. Blondel;T. Maruyama;L. Magaletti;M. Mezzetto;C. Mcgrew;G. Collazuol;P. Martins;T. Vladisavljevic;K. Iwamoto;Hidekazu Tanaka;J. Wilson;N. Chikuma;A. Kaboth;J. Steinmann;F. Hosomi;K. Nakamura;M. Hartz;Y. Kudenko;H. Tanaka;J. Palomino;T. Ishii;P. Dunne;J. Lopez;G. Barr;L. Koch;A. Chappell;Y. Oyama;T. Kutter;P. Jonsson;T. Wachala;K. Sakashita;A. Khotjantsev;C. Jung;K. Yamamoto;Y. Yamada;S. Oser;C. Yanagisawa;N. Patel;P. Ratoff;E. Iwai;P. Denner;T. Lou;J. Coleman;M. Kabirnezhad;E. Reinherz-Aronis;G. Rosa;L. Kormos;M. Batkiewicz;C. Pistillo;F. Gizzarelli;L. Ludovici;K. Nakamura;A. Longhin;E. Guerra;T. Ishida;J. Sobczyk;D. Karlen;S. Moriyama;M. Antonova;D. Fukuda;A. Suzuki;R. Calland;S. Ban;J. Lagoda;C. Nantais;S. Cao;L. Zambelli;J. Morrison;M. Małek;L. Pickering;C. Metelko;S. King;M. Hogan;Mingjian Yu;A. Pritchard;K. Nishikawa;S. Suvorov;A. Minamino;S. Hirota;K. Nakayoshi;A. Izmaylov;T. Lindner;S. Bolognesi;C. Nielsen;C. Wilkinson;S. Boyd;T. Golan;P. Przewłocki;A. Hillairet;B. Quilain;A. Ruggeri;A. Knight;Z. Liptak;C. Andreopoulos;C. Andreopoulos;T. Nakadaira;W. Toki;W. Oryszczak;R. Wendell;T. Hayashino;R. P. Litchfield;T. Stewart;N. Hastings;G. Barker;J. Dumarchez;R. Kurjata;G. Christodoulou;M. Smy;T. Tomura;T. Hasegawa;V. Berardi;K. Duffy;A. Ariga
中科院分区：
文献类型：
--
作者：
K. Abe;O. Drapier;K. Huang;K. Huang;M. Barbi;C. Checchia;J. Kim;E. Mazzucato;C. Densham;R. Owen;S. Nakayama;S. Cartwright;R. A. Intonti;K. Okumura;T. Shirahige;F. Shaker;F. Shaker;P. Novella;F. S'anchez;Y. Suda;M. Avanzini;H. Sekiya;H. Sekiya;J. Kameda;H. Kakuno;P. Rodrigues;T. Mueller;A. Zalewska;M. Catanesi;A. Weber;M. Shiozawa;J. Holeczek;O. Mineev;S. Bienstock;G. Fiorentini;A. Mefodiev;S. Emery-Schrenk;S. Aoki;C. Riccio;T. Yano;T. Hiraki;G. Vasseur;M. McCarthy;R. Tacik;M. Khabibullin;M. Zito;I. Lamont;Y. Nakanishi;A. Knox;M. Ikeda;Y. Takeuchi;T. Ovsyannikova;S. Tobayama;M. Laveder;V. Palladino;M. Wascko;H. O'Keeffe;P. Lasorak;R. Wilson;J. Zalipska;T. Thakore;H. Sobel;D. Payne;J. Nowak;J. Harada;S. Roth;F. Lodovico;L. Thompson;A. Cudd;E. Rondio;M. Jiang;V. Matveev;A. Hiramoto;A. Shaikhiev;E. Kearns;H. Kim;T. Nakaya;K. McFarland;W. Ma;Y. Fukuda;T. Okusawa;J. Schwehr;A. Konaka;A. Cervera;D. Cherdack;D. Hadley;S. Mine;Rayner;A. Garcia;R. Tamura;A. Missert;D. Shaw;Y. Nishimura;T. Kajita;K. Mavrokoridis;X. Lu;C. Barry;C. Walter;S. Dennis;S. Manly;A. Ereditato;B. Rossi;K. Kowalik;N. McCauley;A. Rychter;D. Wark;M. Nakahata;S. Dolan;Y. Petrov;M. Vagins;D. Hansen;J. Haigh;J. Martin;M. Yokoyama;T. Tsukamoto;M. Lawe;C. Bronner;S. Martynenko;T. Kobayashi;L. Haegel;R. Shah;A. Finch;C. Giganti;M. Pavin;S. Johnson;T. Campbell;M. Scott;B. Popov;M. Friend;S. Berkman;S. Berkman;K. Scholberg;D. Coplowe;T. Feusels;T. Koga;J. Kisiel;K. Zaremba;M. Miura;M. Tzanov;E. Zimmerman;Y. Fujii;A. Dabrowska;K. Mahn;M. Gonin;A. Bravar;S. Bordoni;S. Bordoni;M. Tada;T. Sekiguchi;E. Scantamburlo;Z. Vallari;K. Nakamura;C. Vilela;V. Paolone;J. Imber;M. Ziembicki;D. Sgalaberna;Y. Seiya;Y. Koshio;S. Yen;T. Dealtry;A. Ichikawa;D. Brailsford;P. Paudyal;P. Koller;M. Wilking;T. Katori;E. Radicioni;N. Yershov;T. Radermacher;J. Amey;L. Maret;A. Takeda;A. Marino;M. Lamoureux;J. Insler;M. Licciardi;Xin Li;J. Poutissou;Y. Ashida;B. Jamieson;M. Posiadala-Zezula;P. Stowell;S. Bhadra;Y. Suzuki;S. Suzuki;Y. Hayato;C. Wret;A. Blondel;T. Maruyama;L. Magaletti;M. Mezzetto;C. Mcgrew;G. Collazuol;P. Martins;T. Vladisavljevic;K. Iwamoto;Hidekazu Tanaka;J. Wilson;N. Chikuma;A. Kaboth;J. Steinmann;F. Hosomi;K. Nakamura;M. Hartz;Y. Kudenko;H. Tanaka;J. Palomino;T. Ishii;P. Dunne;J. Lopez;G. Barr;L. Koch;A. Chappell;Y. Oyama;T. Kutter;P. Jonsson;T. Wachala;K. Sakashita;A. Khotjantsev;C. Jung;K. Yamamoto;Y. Yamada;S. Oser;C. Yanagisawa;N. Patel;P. Ratoff;E. Iwai;P. Denner;T. Lou;J. Coleman;M. Kabirnezhad;E. Reinherz-Aronis;G. Rosa;L. Kormos;M. Batkiewicz;C. Pistillo;F. Gizzarelli;L. Ludovici;K. Nakamura;A. Longhin;E. Guerra;T. Ishida;J. Sobczyk;D. Karlen;S. Moriyama;M. Antonova;D. Fukuda;A. Suzuki;R. Calland;S. Ban;J. Lagoda;C. Nantais;S. Cao;L. Zambelli;J. Morrison;M. Małek;L. Pickering;C. Metelko;S. King;M. Hogan;Mingjian Yu;A. Pritchard;K. Nishikawa;S. Suvorov;A. Minamino;S. Hirota;K. Nakayoshi;A. Izmaylov;T. Lindner;S. Bolognesi;C. Nielsen;C. Wilkinson;S. Boyd;T. Golan;P. Przewłocki;A. Hillairet;B. Quilain;A. Ruggeri;A. Knight;Z. Liptak;C. Andreopoulos;C. Andreopoulos;T. Nakadaira;W. Toki;W. Oryszczak;R. Wendell;T. Hayashino;R. P. Litchfield;T. Stewart;N. Hastings;G. Barker;J. Dumarchez;R. Kurjata;G. Christodoulou;M. Smy;T. Tomura;T. Hasegawa;V. Berardi;K. Duffy;A. Ariga
T2K实验报告了对中微子和反中微子在出现和消失通道中振荡的最新分析。在以前的T2K振荡分析中使用的四个单环样本中，添加了一个在Super-Kamiokande上标记了π衰变的候选电子中微子样本。通过对这五个样品的联合分析，同时测量了四个振荡参数|Δm322|，Sin_2θ_(23)，Sin_2θ_(13)和δCp以及质量有序度。一组模拟数据的研究表明，对振荡参数的敏感性不受中微子相互作用模型不确定性的限制。对Sin-2-θ-13进行了多次振荡分析，给出了在考虑和不考虑反应堆约束的情况下振荡参数组合的频率和贝叶斯区间。当结合反应堆测量时，在90%的置信度水平下排除了CP守恒的假设(δCP=0或π)。对于正(反)序，δCP的90%置信域是[-2.95，-0.44]([-1.47，-1.27])。正(反)序其他振荡参数的中心值和68%可信区间分别为Δm32 2=2.5 4±0.0 8(2.5 1±0.0 8)×10−3EV2/c4和SIN2θ2 3=0.5 5-0.0 9+0.0 5(0.5 5-0.0 8+0.0 5)，符合最大混合。在贝叶斯分析中，数据弱倾向于正态排序(贝叶斯因子3.7)和SIN2θ23的上八分线(贝叶斯因子2.4)。
The T2K experiment reports an updated analysis of neutrino and antineutrino oscillations in appearance and disappearance channels. A sample of electron neutrino candidates at Super-Kamiokande in which a pion decay has been tagged is added to the four single-ring samples used in previous T2K oscillation analyses. Through combined analyses of these five samples, simultaneous measurements of four oscillation parameters, |Δm322|, sin2θ23, sin2θ13, and δCP and of the mass ordering are made. A set of studies of simulated data indicates that the sensitivity to the oscillation parameters is not limited by neutrino interaction model uncertainty. Multiple oscillation analyses are performed, and frequentist and Bayesian intervals are presented for combinations of the oscillation parameters with and without the inclusion of reactor constraints on sin2θ13. When combined with reactor measurements, the hypothesis of CP conservation (δCP=0 or π) is excluded at 90% confidence level. The 90% confidence region for δCP is [-2.95,-0.44] ([-1.47,-1.27]) for normal (inverted) ordering. The central values and 68% confidence intervals for the other oscillation parameters for normal (inverted) ordering are Δm322=2.54±0.08(2.51±0.08)×10−3 eV2/c4 and sin2θ23=0.55-0.09+0.05 (0.55-0.08+0.05), compatible with maximal mixing. In the Bayesian analysis, the data weakly prefer normal ordering (Bayes factor 3.7) and the upper octant for sin2θ23 (Bayes factor 2.4).