Constraining systematic uncertainties in the T2K neutrino oscillation analysis using samples from the off-axis near detector

使用离轴近探测器样本限制 T2K 中微子振荡分析中的系统不确定性

• 批准号: 2067105
• 金额: --
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2067105
• 关键词: Constraining; systematic; uncertainties; T2K; neutrino

Charged-current (CC) neutrino interactions are of particular importance to the T2K experiment and its oscillation analyses. The expected number of CC interactions at the far detector in the case of no oscillations can be predicted using information frm the near detectors. Charged-current samples at the T2K off-axis near detector (ND280) are split into three categories depending on how many charged pions are present in the final state. The three categories are CC0pi, CC1pi and CCother which refer to events with 0, 1 and >1 charged pions respectively. The "CCother" sample contains all CC samples with a final-state pi0. Therefore, a subset of CCother sample will contain photons, primarily from pi0 decays. This thesis will develop a new selection to divide the CCother selection into "CCother with photon" and "CCother without photon". Results from the selection will be implemented into the T2K oscillation analysis framework and thus used to improve the systematic uncertainty associated with such events. Knowledge of CC interactions with a gamma in the final state is especially important for the joint NoVA-T2K analysis which will begin in the timeframe of this thesis. This project will therefore develop a new set of samples using data from the near detector and incorporate them into the oscillation analysis for the experiment.

带电中微子相互作用对T2 K实验及其振荡分析具有重要意义。在没有振荡的情况下，在远探测器处的CC相互作用的预期数量可以使用来自近探测器的信息来预测。在T2 K离轴近探测器（ND 280）的带电电流样本分为三类，这取决于有多少带电π介子存在于最终状态。这三个类别是CC 0 pi，CC 1 pi和CCother，分别指具有0，1和>1带电π子的事件。“CCother”样本包含具有最终状态pi 0的所有CC样本。因此，CC其他样本的子集将包含光子，主要来自π 0衰变。本文将提出一种新的选择方法，将CCother选择分为“有光子的CCother”和“无光子的CCother”。从选择的结果将被实施到T2 K振荡分析框架，从而用于改善与此类事件相关的系统不确定性。CC与γ在最终状态的相互作用的知识是特别重要的联合NoVA-T2 K分析，这将开始在本论文的时间范围内。因此，该项目将利用近距离探测器的数据开发一套新的样本，并将其纳入实验的振荡分析。

项目成果

First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K

首次联合测量 T2K 终态无 π 介子的 μ 中微子和反中微子带电电流截面

• DOI: 10.1103/physrevd.101.112001
• 发表时间: 2020
• 期刊: Phys.Rev.D
• 作者: K.Abe;T.Ishida;Y.Oyama et al.
• 通讯作者: Y.Oyama et al.

Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K

• DOI: 10.1103/physrevd.101.112004
• 发表时间: 2020-04
• 期刊: Physical Review D
• 影响因子: 5
• 作者: K. Abe;N. Akhlaq;R. Akutsu;A. Ali;C. Alt;C. Andreopoulos;L. Anthony;M. Antonova;S. Aoki;A. Ariga;T. Arihara;Y. Asada;Y. Ashida;E. Atkin;Y. Awataguchi;S. Ban;M. Barbi;G. Barker;G. Barr;D. Barrow;M. Batkiewicz-Kwasniak;A. Beloshapkin;F. Bench;V. Berardi;L. Berns;S. Bhadra;S. Bienstock;S. Bolognesi;T. Bonus;B. Bourguille;S. Boyd;A. Bravar;D. B. Berguño;C. Bronner;S. Bron;A. Bubak;M. Avanzini;T. Campbell;S. Cao;S. Cartwright;M. Catanesi;A. Cervera;D. Cherdack;N. Chikuma;G. Christodoulou;M. Cicerchia;J. Coleman-;G. Collazuol;L. Cook;D. Coplowe;A. Cudd;A. Dabrowska;G. Rosa;T. Dealtry;S. Dennis;C. Densham;F. Lodovico;N. Dokania;S. Dolan;T. Doyle;O. Drapier;J. Dumarchez;P. Dunne;A. Eguchi;L. Eklund;S. Emery-Schrenk;A. Ereditato;A. Finch;G. Fiorillo;C. Francois;M. Friend;Y. Fujii;R. Fujita;D. Fukuda;R. Fukuda;Y. Fukuda;K. Fusshoeller;C. Giganti;M. Gonin;A. Gorin;M. Guigue;D. Hadley;J. Haigh;P. Hamacher-Baumann;M. Hartz;T. Hasegawa;S. Hassani;N. Hastings;Y. Hayato;A. Hiramoto;M. Hogan;J. Holeczek;N. Van;T. Honjo;F. Iacob;A. Ichikawa;M. Ikeda;T. Ishida;M. Ishitsuka;K. Iwamoto;A. Izmaylov;N. Izumi;M. Jakkapu;B. Jamieson;S. Jenkins;C. Jes'us-Valls;M. Jiang;P. Jonsson;C. Jung;X. Junjie;M. Kabirnezhad;A. Kaboth;T. Kajita;H. Kakuno;J. Kameda;D. Karlen;K. Kasetti;Y. Kataoka;Y. Katayama;T. Katori;Y. Kato;E. Kearns;M. Khabibullin;A. Khotjantsev;T. Kikawa;H. Kikutani;H. Kim;S. King;J. Kisiel;A. Knight;T. Kobata;T. Kobayashi;L. Koch;T. Koga;A. Konaka;L. Kormos;Y. Koshio;A. Kostin;K. Kowalik;H. Kubo;Y. Kudenko;N. Kukita;S. Kuribayashi;R. Kurjata;T. Kutter;M. Kuze;L. Labarga;J. Lagoda;M. Lamoureux;D. Last;M. Lawe;M. Licciardi;R. P. Litchfield;S. Liu;X. Li;A. Longhin;L. Ludovici;X. Lu;T. Lux;L. Machado;L. Magaletti;K. Mahn;M. Malek;S. Manly;L. Maret;A. Marino;L. Marti-Magro;T. Maruyama;T. Matsubara;K. Matsushita;V. Matveev;C. Mauger;K. Mavrokoridis;E. Mazzucato;N. McCauley;J. McElwee;K. McFarland;C. Mcgrew;A. Mefodiev;C. Metelko;M. Mezzetto;A. Minamino;O. Mineev;S. Mine;M. Miura;L. Bueno;S. Moriyama;T. Mueller;L. Munteanu;S. Murphy;Y. Nagai;T. Nakadaira;M. Nakahata;Y. Nakajima;A. Nakamura;K. Nakamura;S. Nakayama;T. Nakaya;K. Nakayoshi;C. Naseby;T. V. Ngoc;K. Niewczas;K. Nishikawa;Y. Nishimura;E. Noah;T. Nonnenmacher;F. Nova;P. Novella;J. Nowak;J. Nugent;H. O'Keeffe;L. O’Sullivan;T. Odagawa;T. Ogawa;R. Okada;K. Okumura;T. Okusawa;S. Oser;R. Owen;Y. Oyama;V. Palladino;V. Paolone;M. Pari;W. Parker;S. Parsa;J. Pasternak;M. Pavin;D. Payne;G. Penn;L. Pickering;C. Pidcott;G. Pintaudi;C. Pistillo;B. Popov;K. Porwit;M. Posiadala-Zezula;A. Pritchard;B. Quilain;T. Radermacher;E. Radicioni;B. Radics;P. Ratoff;C. Riccio;E. Rondio;S. Roth;A. Rubbia;A. Ruggeri;C. Ruggles;A. Rychter;K. Sakashita;F. S'anchez;G. Santucci;C. Schloesser;K. Scholberg;M. Scott;Y. Seiya;T. Sekiguchi;H. Sekiya;D. Sgalaberna;A. Shaikhiev;A. Shaykina;M. Shiozawa;W. Shorrock;A. Shvartsman;M. Smy;J. Sobczyk;H. Sobel;F. Soler;Y. Sonoda;S. Suvorov;A. Suzuki;S. Suzuki;Y. Suzuki;A. Sztuc;M. Tada;M. Tajima;A. Takeda;Y. Takeuchi;H. Tanaka;H. Tanaka;S. Tanaka;Y. Tanihara;N. Teshima;L. Thompson;W. Toki;C. Touramanis;T. Towstego;K. Tsui;T. Tsukamoto;M. Tzanov;Y. Uchida;M. Vagins;S. Valder;Z. Vallari;D. Vargas;G. Vasseur;W. Vinning;T. Vladisavljevic;V. Volkov;T. Wachala;J. Walker;J. Walsh;Y. Wang;D. Wark;M. Wascko;A. Weber;R. Wendell;M. Wilking;C. Wilkinson;J. Wilson;K. Wood;C. Wret;K. Yamamoto;C. Yanagisawa;G. Yang;T. Yano;K. Yasutome;N. Yershov;M. Yokoyama;T. Yoshida;M. Yu;A. Zalewska;J. Zalipska;K. Zaremba;G. Zarnecki;M. Ziembicki;E. Zimmerman;M. Zito;S. Zsoldos;A. Zykova

T2K measurements of muon neutrino and antineutrino disappearance using 3.13×10^21 protons on target

使用 3.13×10^21 质子对目标进行 T2K 测量 μ 中微子和反中微子消失

• DOI: 10.1103/physrevd.103.l011101
• 发表时间: 2021
• 期刊: Phys.Rev.D
• 作者: K.Abe;T.Ishida;Y.Oyama et al.
• 通讯作者: Y.Oyama et al.

Measurements of \bar{\nu_\mu} and \bar{\nu_\mu} + \nu_\mu charged-current cross-sections without detected pions nor protons on water and hydrocarbon at mean antineutrino energy of 0.86GeV

在平均反中微子能量为 0.86GeV 的情况下，在水和碳氢化合物上测量 ar{ u_mu} 和 ar{ u_mu} u_mu 带电电流横截面，未检测到介子或质子

• DOI: 10.1093/ptep/ptab014
• 发表时间: 2021
• 期刊: Prog.Theor.Exp.Phys.
• 作者: K.Abe;T.Ishida;Y.Oyama et al.
• 通讯作者: Y.Oyama et al.

First T2K measurement of transverse kinematic imbalance in the muon-neutrino charged-current single-π+ production channel containing at least one proton

首次 T2K 测量包含至少一个质子的 μ 中微子带电电流单 π+ 产生通道中的横向运动不平衡

• DOI: 10.1103/physrevd.103.112009
• 发表时间: 2021
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Y. Akaike;P. Maestro on behalf of the CALET Collaboration;Abe K. et. al. (T2K collaboration)
• 通讯作者: Abe K. et. al. (T2K collaboration)