Minimising Systematic Uncertainties in the Determination of Theta_13 at T2K

最小化 T2K 确定 Theta_13 时的系统不确定性

• 批准号: ST/F009976/1
• 负责人: Morgan Wascko
• 金额: $ 60.75万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FF009976%2F1
• 关键词: Minimising; Systematic; Uncertainties; Determination; Theta_13

Neutrinos are the most mysterious of the fundamental particles. These electrically neutral leptons are nearly massless and only interact via the weak nuclear force, so they are exceedingly hard to detect. However, they are created copiously in the earth, in the atmosphere, in the sun, and out in the cosmos. Neutrinos are key players in the processes that heat the earth, make the sun shine, and make supernovae explode. Despite the fact that neutrinos are everywhere, their intrinsic properties have puzzled us for years. Thanks to a series of exciting discoveries over the past decade, we now know that the elusive behavior of neutrinos probes the deepest questions in particle physics. Studying the most basic constituents of matter, and how they interact with each other, is the primary challenge of particle physics. The current sum of knowledge in the field is called the Standard Model, and it has been remarkably successful in describing the microscopic universe. The model contains two major classes of building blocks: quarks and leptons. For example, protons are made of three quarks, while electrons and neutrinos are types of leptons. However, we know that the Standard Model is incomplete because there must be a more fundamental theory that explains how the two major classes of building blocks are related to each other. Precise measurements of the properties of these two sectors provide our best clues to the form of the underlying theory. But it's not a matter of dotting the i's and crossing the t's; much work remains to be done. In 1998 there was a major surprise in the lepton sector: the three kinds of neutrinos were observed to change from one into another. This kind of oscillation is only possible if neutrinos have mass and mix with each other, thanks to an interesting twist of quantum mechanics. This recent discovery was the first experimental evidence for neutrino mass, and is theoretically attractive because it has been known for decades that the quarks can mix with each other. Uncovering the similarities between the quark and lepton sectors will help to reveal the deeper symmetries of the fundamental theory. The physics of mixing between neutrinos---or between quarks---can be described in terms of six independent parameters. The first generation of neutrino oscillation experiments measured four of the six. To capture the remaining two parameters will require measurements with unprecedented accuracy. The next generation, led by the T2K experiment in Japan, will improve upon the precision of the existing four parameters, and, starting in 2009, T2K will make the world's best attempt to measure the remaining unknowns. Understanding the mysterious properties of neutrinos may illuminate the way to the fundamental theory beyond the Standard Model. We are now embarking on a bold programme to improve the accuracy of neutrino mixing measurements. This is a necessary next step toward answering the key questions of particle physics.

中微子是最神秘的基本粒子。这些电中性轻子几乎没有质量，只通过弱核力相互作用，因此它们非常难以检测。然而，它们在地球、大气、太阳和宇宙中大量地被创造出来。中微子是加热地球、使太阳发光和使超新星爆炸的过程中的关键角色。尽管中微子无处不在，但它们的固有特性多年来一直困扰着我们。由于过去十年来一系列令人兴奋的发现，我们现在知道中微子难以捉摸的行为探索了粒子物理学中最深刻的问题。研究物质的最基本成分，以及它们如何相互作用，是粒子物理学的主要挑战。目前该领域的知识总和被称为标准模型，它在描述微观宇宙方面取得了显着的成功。该模型包含两大类基本单元：夸克和轻子。例如，质子由三个夸克组成，而电子和中微子是轻子的类型。然而，我们知道标准模型是不完整的，因为必须有一个更基本的理论来解释这两类主要的构建模块是如何相互关联的。对这两个扇区性质的精确测量为我们提供了基本理论形式的最佳线索。但这并不是一个一丝不苟的问题，还有很多工作要做。1998年，轻子领域出现了一个重大的惊喜：人们观察到三种中微子从一种变成另一种。这种振荡只有在中微子具有质量并相互混合的情况下才有可能，这要归功于量子力学的一个有趣的扭曲。最近的这一发现是中微子质量的第一个实验证据，并且在理论上很有吸引力，因为几十年来人们一直知道夸克可以相互混合。揭示夸克和轻子扇区之间的相似性将有助于揭示基础理论更深层次的对称性。中微子之间或夸克之间的混合物理学可以用六个独立的参数来描述。第一代中微子振荡实验测量了其中的四个。要获取其余两个参数，需要以前所未有的精度进行测量。由日本T2K实验领导的下一代将提高现有四个参数的精度，从2009年开始，T2K将成为世界上测量剩余未知数的最佳尝试。理解中微子的神秘性质可能会照亮标准模型之外的基础理论。我们现在正在着手一项大胆的计划，以提高中微子混合测量的准确性。这是回答粒子物理学关键问题的必要的下一步。

项目成果

Search for neutral-current induced single photon production at the ND280 near detector in T2K

• DOI: 10.1088/1361-6471/ab227d
• 发表时间: 2019-02
• 期刊: Journal of Physics G: Nuclear and Particle Physics
• 作者: K. Abe;R. Akutsu;A. Ali;C. Andreopoulos;L. Anthony;M. Antonova;S. Aoki;A. Ariga;Y. Ashida;Y. Awataguchi;Y. Azuma;S. Ban;M. Barbi;G. Barker;G. Barr;C. Barry;M. Batkiewicz-Kwasniak;F. Bench;V. Berardi;S. Berkman;R. Berner;L. Berns;S. Bhadra;S. Bienstock;A. Blondel;S. Bolognesi;B. Bourguille;S. Boyd;D. Brailsford;A. Bravar;C. Bronner;M. Avanzini;J. Calcutt;T. Campbell;S. Cao;S. Cartwright;M. Catanesi;A. Cervera;A. Chappell;C. Checchia;D. Cherdack;N. Chikuma;G. Christodoulou;James S. Coleman;G. Collazuol;D. Coplowe;A. Cudd;A. Dabrowska;G. Rosa;T. Dealtry;P. Denner;S. Dennis;C. Densham;F. Lodovico;N. Dokania;S. Dolan;O. Drapier;K. Duffy;J. Dumarchez;P. Dunne;S. Emery-Schrenk;A. Ereditato;P. Fernandez;T. Feusels;A. Finch;G. Fiorentini;G. Fiorillo;C. Francois;M. Friend;Y. Fujii;R. Fujita;D. Fukuda;Y. Fukuda;K. Gameil;C. Giganti;F. Gizzarelli;T. Golan;M. Gonin;D. Hadley;J. Haigh;P. Hamacher-Baumann;M. Hartz;T. Hasegawa;N. Hastings;T. Hayashino;Y. Hayato;A. Hiramoto;M. Hogan;J. Holeczek;N. Van;F. Hosomi;A. Ichikawa;M. Ikeda;T. Inoue;R. A. Intonti;T. Ishida;T. Ishii;M. Ishitsuka;K. Iwamoto;A. Izmaylov;B. Jamieson;C. Jesus;M. Jiang;S. Johnson;P. Jonsson;C. Jung;M. Kabirnezhad;A. Kaboth;T. Kajita;H. Kakuno;J. Kameda;D. Karlen;T. Katori;Y. Kato;E. Kearns;M. Khabibullin;A. Khotjantsev;Heejong Kim;J. Kim;S. King;J. Kisiel;A. Knight;A. Knox;T. Kobayashi;L. Koch;T. Koga;A. Konaka;L. Kormos;Y. Koshio;K. Kowalik;H. Kubo;Y. Kudenko;R. Kurjata;T. Kutter;M. Kuze;L. Labarga;J. Lagoda;M. Lamoureux;P. Lasorak;M. Laveder;M. Lawe;M. Licciardi;T. Lindner;R. P. Litchfield;X. Li;A. Longhin;J. Lopez;T. Lou;L. Ludovici;X. Lu;T. Lux;L. Magaletti;K. Mahn;M. Małek;S. Manly;L. Maret;A. Marino;J. Martin;P. Martins;T. Maruyama;T. Matsubara;V. Matveev;K. Mavrokoridis;W. Ma;E. Mazzucato;M. McCarthy;N. McCauley;K. McFarland;C. Mcgrew;A. Mefodiev;C. Metelko;M. Mezzetto;A. Minamino;O. Mineev;S. Mine;M. Miura;S. Moriyama;J. Morrison;T. Mueller;S. Murphy;Y. Nagai;T. Nakadaira;M. Nakahata;Y. Nakajima;A. Nakamura;K. Nakamura;K. Nakamura;K. Nakamura;Y. Nakanishi;S. Nakayama;T. Nakaya;K. Nakayoshi;C. Nantais;K. Niewczas;K. Nishikawa;Y. Nishimura;T. Nonnenmacher;P. Novella;J. Nowak;H. O'Keeffe;L. O’Sullivan;K. Okumura;T. Okusawa;S. Oser;R. Owen;Y. Oyama;V. Palladino;J. Palomino;V. Paolone;W. Parker;P. Paudyal;M. Pavin;D. Payne;L. Pickering;C. Pidcott;E. Guerra;C. Pistillo;B. Popov;K. Porwit;M. Posiadala-Zezula;A. Pritchard;B. Quilain;T. Radermacher;E. Radicioni;P. Ratoff;E. Reinherz-Aronis;C. Riccio;E. Rondio;B. Rossi;S. Roth;A. Rubbia;A. Ruggeri;A. Rychter;K. Sakashita;F. Sanchez;S. Sasaki;K. Scholberg;J. Schwehr;M. Scott;Y. Seiya;T. Sekiguchi;H. Sekiya;D. Sgalaberna;R. Shah;A. Shaikhiev;F. Shaker;D. Shaw;A. Shaykina;M. Shiozawa;A. Smirnov;M. Smy;J. Sobczyk;H. Sobel;Y. Sonoda;J. Steinmann;T. Stewart;P. Stowell;S. Suvorov;A. Suzuki;S. Suzuki;Y. Suzuki;A. Sztuc;R. Tacik;M. Tada;A. Takeda;Y. Takeuchi;R. Tamura;Hiroyuki Tanaka;H. Tanaka;L. Thompson;W. Toki;C. Touramanis;K. Tsui;T. Tsukamoto;M. Tzanov;Y. Uchida;W. Uno;M. Vagins;Z. Vallari;D. Vargas;G. Vasseur;C. Vilela;T. Vladisavljevic;V. Volkov;T. Wachala;J. Walker;Yanbin Wang;D. Wark;M. Wascko;A. Weber;R. Wendell;M. Wilking;C. Wilkinson;J. Wilson;R. Wilson;C. Wret;Y. Yamada;K. Yamamoto;S. Yamasu;C. Yanagisawa;G. Yang;T. Yano;K. Yasutome;S. Yen;N. Yershov;M. Yokoyama;T. Yoshida;Mingjian Yu;A. Zalewska;J. Zalipska;K. Zaremba;G. Zarnecki;M. Ziembicki;E. Zimmerman;M. Zito;S. Zsoldos;A. Zykova

Measurement of the inclusive ? µ charged current cross section on carbon in the near detector of the T2K experiment

包容性的测量？

• DOI: 10.1103/physrevd.87.092003
• 发表时间: 2013
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Abe K

The T2K Neutrino Flux Prediction

T2K 中微子通量预测

• DOI: 10.1103/physrevd.87.019902
• 发表时间: 2013
• 期刊: Physical Review
• 作者: K.Abe;T.Kobayashi;T.Hasegawa;T.Nakadaira;K.Sakashita;M.Shibata 他
• 通讯作者: M.Shibata 他

Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector

• DOI: 10.1103/physrevd.89.092003
• 发表时间: 2014-03
• 期刊: Physical Review D
• 影响因子: 5
• 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

Search for heavy neutrinos with the T2K near detector ND280

• DOI: 10.1103/physrevd.100.052006
• 发表时间: 2019-02
• 期刊: Physical Review D
• 影响因子: 5
• 作者: K. Abe;R. Akutsu;A. Ali;C. Andreopoulos;L. Anthony;M. Antonova;S. Aoki;A. Ariga;Y. Ashida-Y.-Ashid