Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
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DOI：
10.1103/physrevd.89.092003
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发表时间：
2014-03
影响因子：
5
通讯作者：
T. Abe;J. Adam;H. Aihara;T. Akiri;C. Andreopoulos;S. Aoki;A. Ariga;T. Ariga;S. Assylbekov;D. Autiero;M. Barbi;G. Barker;G. Barr;M. Bass;M. Batkiewicz;F. Bay;S. Bentham;V. Berardi;B. Berger;S. Berkman;I. Bertram;S. Bhadra;F. Blaszczyk;A. Blondel;C. Bojechko;S. Bordoni;S. Boyd;D. Brailsford;A. Bravar;C. Bronner;N. Buchanan;R. Calland;J. Rodr'iguez;S. Cartwright;R. Castillo;M. Catanesi;A. Cervera;D. Cherdack;G. Christodoulou;A. Clifton;J. Coleman;S. Coleman;G. Collazuol;K. Connolly;L. Cremonesi;A. Dabrowska;I. Dankó;R. Das;S. Davis;P. Perio;G. Rosa;T. Dealtry;S. Dennis;C. Densham;F. Lodovico;S. Luise;O. Drapier;T. Duboyski;K. Duffy;F. Dufour;J. Dumarchez;S. Dytman;M. Dziewiecki;S. Emery;A. Ereditato;L. Escudero;A. Finch;L. Floetotto;M. Friend;Y. Fujii;Y. Fukuda;A. Furmanski;V. Galymov;S. Giffin;C. Giganti;K. Gilje;D. Goeldi;T. Golan;J. Gómez-Cadenas;M. Gonin;N. Grant;D. Gudin;D. Hadley;A. Haesler;M. Haigh;P. Hamilton;D. Hansen;T. Hara;M. Hartz;T. Hasegawa;N. Hastings;Y. Hayato;C. Hearty;R. Helmer;M. Hierholzer;J. Hignight;A. Hillairet;A. Himmel;T. Hiraki;S. Hirota;J. Holeczek;S. Horikawa;K. Huang;A. Ichikawa;K. Ieki;M. Ieva;M. Ikeda;J. Imber;J. Insler;T. Irvine;T. Ishida;T. Ishii;S. Ives;E. Iwai;K. Iyogi;A. Izmaylov;A. Jacob;B. Jamieson;R. Johnson;J. Jo;P. Jonsson;C. Jung;M. Kabirnezhad;A. Kaboth;T. Kajita;H. Kakuno;J. Kameda;Y. Kanazawa;D. Karlen;I. Karpikov;E. Kearns;M. Khabibullin;A. Khotjantsev;D. Kiełczewska;T. Kikawa;A. Kilinski;J. Kim;J. Kisiel;P. Kitching;T. Kobayashi;L.Koch;A. Kolaceke;A. Konaka;L. Kormos;A. Korzenev;K. Koseki;Y. Koshio;I. Kreslo;W. Kropp;H. Kubo;Y. Kudenko;S. Kumaratunga;R. Kurjata;T. Kutter;J. Lagoda;K. Laihem;I. Lamont;M. Laveder;M. Lawe;M. Lazos;K. P. Lee;T. Lindner;C. Lister;R. P. Litchfield;A. Longhin;L. Ludovici;M. Macaire;L. Magaletti;K. Mahn;M. Małek;S. Manly;A. Marino;J. Marteau;J. Martin;T. Maruyama;J. Marzec;E. Mathie;V. Matveev;K. Mavrokoridis;E. Mazzucato;M. McCarthy;N. McCauley;K. McFarland;C. Mcgrew;C. Metelko;M. Mezzetto;P. Mijakowski;C. A. Miller;A. Minamino;O. Mineev;S. Mine;A. Missert;M. Miura;L. Monfregola;S. Moriyama;T. Mueller;A. Murakami;M. Murdoch;S. Murphy;J. Myslik;T. Nagasaki;T. Nakadaira;M. Nakahata;T. Nakai;K. Nakamura;S. Nakayama;T. Nakaya;K. Nakayoshi;D. Naples;C. Nielsen;M. Nirkko;K. Nishikawa;Y. Nishimura;H. O'Keeffe;R. Ohta;K. Okumura;T. Okusawa;W. Oryszczak;S. Oser;R. Owen;Y. Oyama;V. Palladino;V. Paolone;D. Payne;O. Perevozchikov;J. Perkin;Y. Petrov;L. Pickard;E. Guerra;C. Pistillo;P. Plonski;E. Popławska;B. Popov;M. Posiadała;J. Poutissou;R. Poutissou;P. Przewłocki;B. Quilain;E. Radicioni;P. Ratoff;M. Ravonel;M. Rayner;A. Redij;M. Reeves;E. Reinherz-Aronis;F. Retière;A. Robert;P. Rodrigues;P. Rojas;E. Rondio;S. Roth;A. Rubbia;D. Ruterbories;R. Sacco;K. Sakashita;F. S'anchez;F. Sato;E. Scantamburlo;K. Scholberg;Stefan Schoppmann;J. Schwehr;M. Scott;Y. Seiya;T. Sekiguchi;H. Sekiya;D. Sgalaberna;M. Shiozawa;S. Short;Y. Shustrov;P. Sinclair;B. Smith;R. Smith;M. Smy;J. Sobczyk;H. Sobel;M. Sorel;L. Southwell;P. Stamoulis;J. Steinmann;B. Still;Y. Suda;A. Suzuki;K. Suzuki;S. Suzuki;Y. Suzuki;T. Szegłowski;R. Tacik;M. Tada;S. Takahashi;A. Takeda;Y. Takeuchi;H. Tanaka;H. Tanaka;M. Tanaka;D. Terhorst;R. Terri;L. Thompson;A. Thorley;S. Tobayama;W. Toki;T. Tomura;Y. Totsuka;C. Touramanis;T. Tsukamoto;M. Tzanov;Y. Uchida;K. Ueno;A. Vacheret;M. Vagins;G. Vasseur;T. Wachala;A. Waldron;C. Walter;D. Wark;M. Wascko;A. Weber;R. Wendell;R. Wilkes;M. Wilking;C. Wilkinson;Z. Williamson;J. Wilson;R. Wilson;T. Wongjirad;Y. Yamada;K. Yamamoto;C. Yanagisawa;S. Yen;N. Yershov;M. Yokoyama;T. Yuan;M. Yu;A. Zalewska;J. Zalipska;L. Zambelli;K. Zaremba;M. Ziembicki;E. Zimmerman;M. Zito;J. Żmuda
中科院分区：
文献类型：
--
作者：
T. Abe;J. Adam;H. Aihara;T. Akiri;C. Andreopoulos;S. Aoki;A. Ariga;T. Ariga;S. Assylbekov;D. Autiero;M. Barbi;G. Barker;G. Barr;M. Bass;M. Batkiewicz;F. Bay;S. Bentham;V. Berardi;B. Berger;S. Berkman;I. Bertram;S. Bhadra;F. Blaszczyk;A. Blondel;C. Bojechko;S. Bordoni;S. Boyd;D. Brailsford;A. Bravar;C. Bronner;N. Buchanan;R. Calland;J. Rodr'iguez;S. Cartwright;R. Castillo;M. Catanesi;A. Cervera;D. Cherdack;G. Christodoulou;A. Clifton;J. Coleman;S. Coleman;G. Collazuol;K. Connolly;L. Cremonesi;A. Dabrowska;I. Dankó;R. Das;S. Davis;P. Perio;G. Rosa;T. Dealtry;S. Dennis;C. Densham;F. Lodovico;S. Luise;O. Drapier;T. Duboyski;K. Duffy;F. Dufour;J. Dumarchez;S. Dytman;M. Dziewiecki;S. Emery;A. Ereditato;L. Escudero;A. Finch;L. Floetotto;M. Friend;Y. Fujii;Y. Fukuda;A. Furmanski;V. Galymov;S. Giffin;C. Giganti;K. Gilje;D. Goeldi;T. Golan;J. Gómez-Cadenas;M. Gonin;N. Grant;D. Gudin;D. Hadley;A. Haesler;M. Haigh;P. Hamilton;D. Hansen;T. Hara;M. Hartz;T. Hasegawa;N. Hastings;Y. Hayato;C. Hearty;R. Helmer;M. Hierholzer;J. Hignight;A. Hillairet;A. Himmel;T. Hiraki;S. Hirota;J. Holeczek;S. Horikawa;K. Huang;A. Ichikawa;K. Ieki;M. Ieva;M. Ikeda;J. Imber;J. Insler;T. Irvine;T. Ishida;T. Ishii;S. Ives;E. Iwai;K. Iyogi;A. Izmaylov;A. Jacob;B. Jamieson;R. Johnson;J. Jo;P. Jonsson;C. Jung;M. Kabirnezhad;A. Kaboth;T. Kajita;H. Kakuno;J. Kameda;Y. Kanazawa;D. Karlen;I. Karpikov;E. Kearns;M. Khabibullin;A. Khotjantsev;D. Kiełczewska;T. Kikawa;A. Kilinski;J. Kim;J. Kisiel;P. Kitching;T. Kobayashi;L.Koch;A. Kolaceke;A. Konaka;L. Kormos;A. Korzenev;K. Koseki;Y. Koshio;I. Kreslo;W. Kropp;H. Kubo;Y. Kudenko;S. Kumaratunga;R. Kurjata;T. Kutter;J. Lagoda;K. Laihem;I. Lamont;M. Laveder;M. Lawe;M. Lazos;K. P. Lee;T. Lindner;C. Lister;R. P. Litchfield;A. Longhin;L. Ludovici;M. Macaire;L. Magaletti;K. Mahn;M. Małek;S. Manly;A. Marino;J. Marteau;J. Martin;T. Maruyama;J. Marzec;E. Mathie;V. Matveev;K. Mavrokoridis;E. Mazzucato;M. McCarthy;N. McCauley;K. McFarland;C. Mcgrew;C. Metelko;M. Mezzetto;P. Mijakowski;C. A. Miller;A. Minamino;O. Mineev;S. Mine;A. Missert;M. Miura;L. Monfregola;S. Moriyama;T. Mueller;A. Murakami;M. Murdoch;S. Murphy;J. Myslik;T. Nagasaki;T. Nakadaira;M. Nakahata;T. Nakai;K. Nakamura;S. Nakayama;T. Nakaya;K. Nakayoshi;D. Naples;C. Nielsen;M. Nirkko;K. Nishikawa;Y. Nishimura;H. O'Keeffe;R. Ohta;K. Okumura;T. Okusawa;W. Oryszczak;S. Oser;R. Owen;Y. Oyama;V. Palladino;V. Paolone;D. Payne;O. Perevozchikov;J. Perkin;Y. Petrov;L. Pickard;E. Guerra;C. Pistillo;P. Plonski;E. Popławska;B. Popov;M. Posiadała;J. Poutissou;R. Poutissou;P. Przewłocki;B. Quilain;E. Radicioni;P. Ratoff;M. Ravonel;M. Rayner;A. Redij;M. Reeves;E. Reinherz-Aronis;F. Retière;A. Robert;P. Rodrigues;P. Rojas;E. Rondio;S. Roth;A. Rubbia;D. Ruterbories;R. Sacco;K. Sakashita;F. S'anchez;F. Sato;E. Scantamburlo;K. Scholberg;Stefan Schoppmann;J. Schwehr;M. Scott;Y. Seiya;T. Sekiguchi;H. Sekiya;D. Sgalaberna;M. Shiozawa;S. Short;Y. Shustrov;P. Sinclair;B. Smith;R. Smith;M. Smy;J. Sobczyk;H. Sobel;M. Sorel;L. Southwell;P. Stamoulis;J. Steinmann;B. Still;Y. Suda;A. Suzuki;K. Suzuki;S. Suzuki;Y. Suzuki;T. Szegłowski;R. Tacik;M. Tada;S. Takahashi;A. Takeda;Y. Takeuchi;H. Tanaka;H. Tanaka;M. Tanaka;D. Terhorst;R. Terri;L. Thompson;A. Thorley;S. Tobayama;W. Toki;T. Tomura;Y. Totsuka;C. Touramanis;T. Tsukamoto;M. Tzanov;Y. Uchida;K. Ueno;A. Vacheret;M. Vagins;G. Vasseur;T. Wachala;A. Waldron;C. Walter;D. Wark;M. Wascko;A. Weber;R. Wendell;R. Wilkes;M. Wilking;C. Wilkinson;Z. Williamson;J. Wilson;R. Wilson;T. Wongjirad;Y. Yamada;K. Yamamoto;C. Yanagisawa;S. Yen;N. Yershov;M. Yokoyama;T. Yuan;M. Yu;A. Zalewska;J. Zalipska;L. Zambelli;K. Zaremba;M. Ziembicki;E. Zimmerman;M. Zito;J. Żmuda
T2 K实验报告了第一次观察到电子中微子在μ子中微子束中的出现。外观信号的主要和不可约的背景来自中微子束中的一个小的本征成分的电子中微子起源于μ子和K介子衰变的存在。在T2 K中，这一部分预计占总中微子通量的1.2%。使用近探测器（ND 280），位于280米的目标，这部分的测量。通过结合ND 280的时间投影室和电磁量能器的粒子识别能力，选择了电子中微子的带电电流相互作用。观测到的电子中微子束分量和预测之间的实测比率为1.01 +/- 0.10，提供了用于T2 K中微子振荡分析的中微子通量和中微子截面建模的直接确认。来自μ子和K介子衰变的电子中微子也被分别测量，结果分别为0.68 +/- 0.30和1.10 +/- 0.14。
The T2K experiment has reported the first observation of the appearance of electron neutrinos in a muon neutrino beam. The main and irreducible background to the appearance signal comes from the presence in the neutrino beam of a small intrinsic component of electron neutrinos originating from muon and kaon decays. In T2K, this component is expected to represent 1.2% of the total neutrino flux. A measurement of this component using the near detector (ND280), located 280 m from the target, is presented. The charged current interactions of electron neutrinos are selected by combining the particle identification capabilities of both the time projection chambers and electromagnetic calorimeters of ND280. The measured ratio between the observed electron neutrino beam component and the prediction is 1.01 +/- 0.10 providing a direct confirmation of the neutrino fluxes and neutrino cross section modeling used for T2K neutrino oscillation analyses. Electron neutrinos coming from muons and kaons decay are also separately measured, resulting in a ratio with respect to the prediction of 0.68 +/- 0.30 and 1.10 +/- 0.14, respectively.