First direct observation of muon antineutrino disappearance.
First direct observation of muon antineutrino disappearance.
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DOI：
10.1103/physrevlett.107.021801
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发表时间：
2011-04
影响因子：
8.6
通讯作者：
P. Adamson;C. Andreopoulos;D. Auty;D. Ayres;C. Backhouse;G. Barr;M. Bishai;A. Blake;G. Bock;D. Boehnlein;D. Bogert;S. Cavanaugh;D. Cherdack;S. Childress;B. Choudhary;J. Coelho;S. Coleman;L. Corwin;D. Cronin-Hennessy;I. Dankó;J. D. Jong;N. Devenish;M. Diwan;M. Dorman;C. Escobar;J. Evans;E. Falk;G. Feldman;M. Frohne;H. Gallagher;R. Gomes;M. Goodman;P. Gouffon;N. Graf;R. Gran;N. Grant;K. Grzelak;A. Habig;D. Harris;J. Hartnell;J. Hartnell;R. Hatcher;A. Himmel;A. Holin;C. Howcroft;X. Huang;J. Hylen;J. Ilic;G. Irwin;Z. Isvan;D. Jaffe;C. James;D. Jensen;T. Kafka;S. Amcix;G. Koizumi;S. Kopp;M. Kordosky;A. Kreymer;K. Lang;G. Lefeuvre;P. Litchfield;P. Litchfield;L. Loiacono;P. Lucas;W. A. Mann;M. Marshak;N. Mayer;A. McGowan;R. Mehdiyev;J. Meier;M. Messier;W. Miller;S. Mishra;J. Mitchell;C. Moore;J. Morfín;L. Mualem;S. Mufson;J. Musser;D. Naples;J. Nelson;H. Newman;R. Nichol;T. Nicholls;J. Nowak;J. Ochoa-Ricoux;W. Oliver;M. Orchanian;R. Ospanov;J. Paley;J. Paley;R. Patterson;G. Pawloski;G. Pearce;D. Petyt;S. Phan-Budd;R. Plunkett;X. Qiu;J. Ratchford;T. Raufer;B. Rebel;P. Rodrigues;C. Rosenfeld;H. Rubin;M. Sánchez;M. Sánchez;M. Sánchez;J. Schneps;P. Schreiner;P. Shanahan;A. Sousa;P. Stamoulis;M. Strait;N. Tagg;R. Talaga;E. Tetteh-Lartey;J. Thomas;M. Thomson;G. Tinti;R. Toner;G. Tzanakos;J. Urheim;P. Vahle;B. Viren;A. Weber;R. Webb;C. White;L. Whitehead;S. Wojcicki;T. Yang;R. Zwaska
中科院分区：
文献类型：
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作者：
P. Adamson;C. Andreopoulos;D. Auty;D. Ayres;C. Backhouse;G. Barr;M. Bishai;A. Blake;G. Bock;D. Boehnlein;D. Bogert;S. Cavanaugh;D. Cherdack;S. Childress;B. Choudhary;J. Coelho;S. Coleman;L. Corwin;D. Cronin-Hennessy;I. Dankó;J. D. Jong;N. Devenish;M. Diwan;M. Dorman;C. Escobar;J. Evans;E. Falk;G. Feldman;M. Frohne;H. Gallagher;R. Gomes;M. Goodman;P. Gouffon;N. Graf;R. Gran;N. Grant;K. Grzelak;A. Habig;D. Harris;J. Hartnell;J. Hartnell;R. Hatcher;A. Himmel;A. Holin;C. Howcroft;X. Huang;J. Hylen;J. Ilic;G. Irwin;Z. Isvan;D. Jaffe;C. James;D. Jensen;T. Kafka;S. Amcix;G. Koizumi;S. Kopp;M. Kordosky;A. Kreymer;K. Lang;G. Lefeuvre;P. Litchfield;P. Litchfield;L. Loiacono;P. Lucas;W. A. Mann;M. Marshak;N. Mayer;A. McGowan;R. Mehdiyev;J. Meier;M. Messier;W. Miller;S. Mishra;J. Mitchell;C. Moore;J. Morfín;L. Mualem;S. Mufson;J. Musser;D. Naples;J. Nelson;H. Newman;R. Nichol;T. Nicholls;J. Nowak;J. Ochoa-Ricoux;W. Oliver;M. Orchanian;R. Ospanov;J. Paley;J. Paley;R. Patterson;G. Pawloski;G. Pearce;D. Petyt;S. Phan-Budd;R. Plunkett;X. Qiu;J. Ratchford;T. Raufer;B. Rebel;P. Rodrigues;C. Rosenfeld;H. Rubin;M. Sánchez;M. Sánchez;M. Sánchez;J. Schneps;P. Schreiner;P. Shanahan;A. Sousa;P. Stamoulis;M. Strait;N. Tagg;R. Talaga;E. Tetteh-Lartey;J. Thomas;M. Thomson;G. Tinti;R. Toner;G. Tzanakos;J. Urheim;P. Vahle;B. Viren;A. Weber;R. Webb;C. White;L. Whitehead;S. Wojcicki;T. Yang;R. Zwaska
这封信报告了对μ子反中微子消失的第一次直接观察。MINOS实验用优化的ν(μ)产生的加速器束获取数据，在目标上积累了1.71 × 10²⁰个质子的暴露。在远检波器中，观测到97个带电电流ν(μ)事件。无振荡假设预测156个事件，在6.3σ处被排除。最适合的振荡产量|Δm²| = [3.36 (-0.40)(+ 0.46)(stat)±0.06(系统)×10⁻³eV²,罪²(2θ)= 0.86 (-0.12)(+ 0.11)(stat)±0.01(系统)。MINOS的ν(μ)和ν(μ)测量值在2.0%置信水平下是一致的，假设底层振荡参数相同。
This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ν(μ) production, accumulating an exposure of 1.71 × 10²⁰ protons on target. In the Far Detector, 97 charged current ν(μ) events are observed. The no-oscillation hypothesis predicts 156 events and is excluded at 6.3σ. The best fit to oscillation yields |Δm²| = [3.36(-0.40)(+0.46)(stat) ± 0.06(syst)] × 10⁻³ eV², sin²(2θ) = 0.86(-0.12)(+0.11)(stat) ± 0.01(syst). The MINOS ν(μ) and ν(μ) measurements are consistent at the 2.0% confidence level, assuming identical underlying oscillation parameters.