New Result on K+→π+νν¯ from the NA62 Experiment
New Result on K+→π+νν¯ from the NA62 Experiment
复制标题
NA62 实验中 K+→π+νν́ 的新结果
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
A. Zinchenko
中科院分区：
文献类型：
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作者：
R. Aliberti;F. Ambrosino;R. Ammendola;B. Angelucci;A. Antonelli;G. Anzivino;R. Arcidiacono;T. Bache;M. Barbanera;J. Bernhard;A. Biagioni;L. Bician;C. Biino;A. Bizzeti;T. Blažek;B. Bloch;Bonaiuto;M. Boretto;M. Bragadireanu;D. Britton;F. Brizioli;M. Brunetti;D. Bryman;F. Bucci;T. Capussela;J. Carmignani;A. Ceccucci;P. Cenci;Černý;C. Cerri;B. Checcucci;A. Conovaloff;P. Cooper;E. Cortinagil;M. Corvino;F. Costantini;A. C. Ramusino;D. Coward;G. D'Agostini;J. Dainton;P. Dalpiaz;H. Danielsson;N. Desimone;D. Filippo;L. Lella;N. Doble;B. Döbrich;F. Duval;Duk;J. Engelfried;T. Enik;N. Estrada;Falaleev;R. Fantechi;Fascianelli;L. Federici;S. Fedotov;A. Filippi;M. Fiorini;J. Fry;J. Fu;A. Fucci;L. Fulton;E. Gamberini;L. Gatignon;G. Georgiev;S. Ghinescu;A. Gianoli;M. Giorgi;S. Giudici;F. Gonnella;E. Goudzovski;C. Graham;R. Guida;E. Gushchin;F. Hahn;H. Heath;E. Holzer;T. Husek;O. Hutanu;D. Hutchcroft;L. Iacobuzio;E. Iacopini;E. Imbergamo;B. Jenninger;J. Jerhot;R. Jones;K. Kampf;Kekelidze;S. Kholodenko;G. Khoriauli;A. Khotyantsev;A. Kleimenova;A. Korotkova;M. Koval;Kozhuharov;Z. Kučerová;Y. Kudenko;J. Kunze;Kurochka;Kurshetsov;G. Lanfranchi;G. Lamanna;E. Lari;G. Latino;P. Laycock;C. Lazzeroni;M. Lenti;G. Miotto;Emilio Leonardi;P. Lichard;L. Litov;R. Lollini;D. Lomidze;A. Lonardo;P. Lubrano;M. Lupi;N. Lurkin;D. Madigozhin;I. Mannelli;G. Mannocchi;A. Mapelli;F. Marchetto;R. Marchevski;S. Martellotti;P. Massarotti;K. Massri;E. Maurice;Masha Medvedeva;A. Mefodev;E. Menichetti;E. Migliore;E. Minucci;M. Mirra;M. Misheva;N. Molokanova;M. Moulson;S. Movchan;M. Napolitano;I. Neri;F. Newson;A. Norton;M. Noy;T. Numao;Obraztsov;A. Ostankov;S. Padolski;R. Page;Palladino;A. Parenti;C. Parkinson;E. Pedreschi;M. Pepe;M. Perrin;L. Peruzzo;P. Petrov;Y. Petrov;F. Petrucci;R. Piandani;M. Piccini;J. Pinzino;I. Polenkevich;L. Pontisso;Y. Potrebenikov;D. Protopopescu;M. Raggi;A. Romano;P. Rubin;G. Ruggiero;Ryjov;A. Salamon;C. Santoni;G. Saracino;F. Sargeni;S. Schuchmann;Semenov;A. Sergi;A. Shaikhiev;S. Shkarovskiy;D. Soldi;Sugonyaev;M. Sozzi;T. Spadaro;F. Spinella;A. Sturgess;J. Swallow;S. Trilov;P. Valente;B. Velghe;S. Venditti;P. Vicini;R. Volpe;M. Vormstein;H. Wahl;R. Wanke;B. Wrona;O. Yushchenko;M. Zamkovsky;A. Zinchenko
CERN SPS的NA 62实验旨在通过飞行衰变技术测量K+→π+νν <$的分支比，并在2016-2018年获得数据。2017年收集的统计数据使NA 62能够实现K+→π+νν <$对应于2个以上标准模型K+→ π + ν ν <$预期事件的最佳最新单事件灵敏度。对2017年数据的分析揭示了2个候选K+→π+νν <$事件，而预计有1.5个背景事件。与2016年数据中发现的候选者一起，这个结果导致1.85 × 10−10作为90% C. L的初步上限。关于K+→π+νν ′衰变的分支比。2017年的数据也使NA 62在寻找π 0 →不可见衰变方面达到了最佳的最新灵敏度。
The NA62 experiment at the CERN SPS is designed to measure the branching ratio of the K+→π+νν¯ with a decay-in-flight technique and took data in 2016–2018. The statistics collected in 2017 allows NA62 to achieve the best up–to–date single event sensitivity for K+→π+νν¯ corresponding to more than 2 Standard Model K+→π+νν¯ expected events. The analysis of the 2017 data has revealed 2 candidate K+→π+νν¯ events, while 1.5 background were expected. Together with the candidate found on the 2016 data, this result leads to 1.85 × 10−10 as preliminary upper limit at 90% C.L. on the branching ratio of the K+→π+νν¯ decay. The 2017 data also allow NA62 to achieve the best up–to–date sensitivity on the search for the π 0 → invisible decay.
影响因子：
5.4
作者：
Blanke, Monika;Buras, Andrzej J.;Gori, Stefania
通讯作者：
Gori, Stefania
影响因子：
5
作者：
K. Nakamura;K. Hagiwara;K. Hikasa;H. Murayama;M. Tanabashi;T. Watari;C. Amsler;M. Antonelli
通讯作者：
K. Nakamura;K. Hagiwara;K. Hikasa;H. Murayama;M. Tanabashi;T. Watari;C. Amsler;M. Antonelli
首先使用飞行中衰减技术搜索 K ∏ ∣∣∣
影响因子：
4.4
作者：
NA62 Collaboration (E. Cortina Gil)
通讯作者：
NA62 Collaboration (E. Cortina Gil)