Measurement of the very rare K + → π+νν¯ decay
E. Cortina Gil,A. Kleimenova,E. Minucci,E. Minucci,S. Padolski,S. Padolski,P. Petrov,A. Shaikhiev,A. Shaikhiev,R. Volpe,R. Volpe,T. Numao,Y. Petrov,B. Velghe,Douglas Bryman,Douglas Bryman,J. L. Fu,T. Husek,T. Husek,J. Jerhot,J. Jerhot,Karol Kampf,M. Zamkovsky,R. Aliberti,G. Khoriauli,G. Khoriauli,J. Kunze,D. Lomidze,D. Lomidze,L. Peruzzo,M. Vormstein,Rainer Wanke,P. F. Dalpiaz,M. Fiorini,Ilaria Neri,A. Norton,Fabrizio Petrucci,H. Wahl,A. Cotta Ramusino,A. Gianoli,E. Iacopini,Giuseppe Latino,M. Lenti,A. Parenti,Andrea Bizzeti,F. Bucci,A. Antonelli,Georgi P. Georgiev,V. Kozhuharov,G. Lanfranchi,S. Martellotti,M. Moulson,Tommaso Spadaro,F. Ambrosino,T. Capussela,M. Corvino,D. Di Filippo,Paolo Massarotti,M. Mirra,M. Napolitano,G. Saracino,G. Anzivino,F. Brizioli,E. Imbergamo,R. Lollini,R. Piandani,Claudio Santoni,Mattia Barbanera,P. Cenci,B. Checcucci,P. Lubrano,Matteo Lupi,M. Pepe,Mauro Piccini,F. Costantini,L. Di Lella,N. Doble,Mario Giorgi,S. Giudici,G. Lamanna,E. Lari,E. Pedreschi,M. Sozzi,C. Cerri,R. Fantechi,Luca Pontisso,F. Spinella,I. Mannelli,G. D'Agostini,Mauro Raggi,Andrea Biagioni,Emilio Leonardi,Alessandro Lonardo,Paolo Valente,Piero Vicini,Roberto Ammendola,Vincenzo Bonaiuto,A. Fucci,A. Salamon,Fausto Sargeni,Roberta Arcidiacono,B. Bloch-Devaux,M. Boretto,E. Menichetti,Ernesto Migliore,D. Soldi,Cristina Biino,A. Filippi,F. Marchetto,Jürgen Engelfried,N. Estrada-Tristan,N. Estrada-Tristan,A. M. Bragadireanu,S. Ghinescu,O. Hutanu,A. Baeva,D. Baigarashev,D. Emelyanov,T. Enik,V. Falaleev,Vladimir Kekelidze,A. Korotkova,Leander Litov,Leander Litov,D. T. Madigozhin,Milena Misheva,Milena Misheva,N. A. Molokanova,S. Movchan,I. Polenkevich,Yu. Potrebenikov,S. Shkarovskiy,A. I. Zinchenko,Sergei Fedotov,E. Gushchin,A. Khotyantsev,Yu.A. Kudenko,Yu.A. Kudenko,Yu.A. Kudenko,V. Kurochka,M. Medvedeva,A. Mefodev,S. Kholodenko,V. Kurshetsov,V. Obraztsov,A P Ostankov,V. E. Semenov,V. Sugonyaev,O. Yushchenko,L. Bician,L. Bician,Tomas Blazek,V. Cerny,Z. Kucerova,Johannes Bernhard,A. Ceccucci,H. O. Danielsson,N. De Simone,F. Duval,Babette Döbrich,L. Federici,E. Gamberini,L. Gatignon,L. Gatignon,Roberto Guida,F. Hahn,E. B. Holzer,B. Jenninger,M. Koval,M. Koval,Paul Laycock,Paul Laycock,G. Lehmann Miotto,P. Lichard,A. Mapelli,R. Marchevski,R. Marchevski,K. Massri,Matthew Noy,V. Palladino,V. Palladino,M. Perrin-Terrin,M. Perrin-Terrin,M. Perrin-Terrin,Jacopo Pinzino,Vladimir Ryjov,S. Schuchmann,S. Schuchmann,S. Venditti,T. Bache,M. B. Brunetti,M. B. Brunetti,Viacheslav Duk,V. Fascianelli,V. Fascianelli,J. R. Fry,Francesco Gonnella,Evgueni Goudzovski,J. Henshaw,L. Iacobuzio,C. Lazzeroni,Nicolas Lurkin,Nicolas Lurkin,F. Newson,C. J. Parkinson,C. J. Parkinson,A. Romano,Antonino Sergi,A. Sturgess,J. Swallow,Helen F Heath,R. Page,S. Trilov,B. Angelucci,Dave Britton,C. Graham,D. Protopopescu,J. Carmignani,J. B. Dainton,R. W. L. Jones,Giuseppe Ruggiero,L. Fulton,D. E. Hutchcroft,E. Maurice,B. Wrona,A. Conovaloff,P. Cooper,D. Coward,D. Coward,P. Rubin +229 more
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TLDR
The NA62 experiment achieved a single event sensitivity of (0.839 ± 0.054) × 10−11, corresponding to 10.0 events from the total data sample collected at the CERN SPS during 2016-2018 as discussed by the authors.Abstract:
The NA62 experiment reports the branching ratio measurement $$ \mathrm{BR}\left({K}^{+}\to {\pi}^{+}\nu \overline{\nu}\right)=\left({10.6}_{-3.4}^{+4.0}\left|{}_{\mathrm{stat}}\right.\pm {0.9}_{\mathrm{syst}}\right)\times {10}^{-11} $$
at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016–2018. This provides evidence for the very rare K+ → $$ {\pi}^{+}\nu \overline{\nu} $$
decay, observed with a significance of 3.4σ. The experiment achieves a single event sensitivity of (0.839 ± 0.054) × 10−11, corresponding to 10.0 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10−11. This measurement is also used to set limits on BR(K+ → π+X), where X is a scalar or pseudo-scalar particle. Details are given of the analysis of the 2018 data sample, which corresponds to about 80% of the total data sample.read more
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The Forward Physics Facility at the High-Luminosity LHC
Jonathan L. Feng,Felix Kling,Mary Hall Reno,Juan Rojo,Dennis Soldin,Luis A. Anchordoqui,Jamie Boyd,Ahmed Ismail,Lucian Harland-Lang,K. Kelley,Vishvas Pandey,Sebastian Trojanowski,Y. T. Tsai,J. M. Alameddine,T. Araki,Akitaka Ariga,Tomoko Ariga,Kento Asai,Alessandro Bacchetta,Kincso Balazs,Alan Barr,M. Battistin,Jianming Qian,Caterina Bertone,Weidong Bai,Pouya Bakhti,A. B. Balantekin,Basabendu Barman,Brian Batell,Martin Bauer,B. Bauer,Matthew R. Becker,Asher Berlin,Enrico Bertuzzo,A. Bhattacharya,Marco Bonvini,Stewart Boogert,Alexey Boyarsky,Joseph Bramante,Vedran Brdar,Adrian Carmona,David William Casper,Francesco Giovanni Celiberto,F. Cerutti,Grigorios Chachamis,Garv Chauhan,Matthew Citron,Emanuele Copello,J P Corso,Luc Darm'e,Raffaele Tito D'Agnolo,Neda Darvishi,Arindam Das,G. De Lellis,A. De Roeck,J. J. De Vries,H. Dembinski,Sergei Demidov,Patrick deNiverville,Peter B. Denton,Frank F. Deppisch,P. S. Bhupal Dev,A. Di Crescenzo,Keith R. Dienes,M. V. Diwan,Herbi K. Dreiner,Yongxu Du,Bhaskar Dutta,P. Duwentaster,L. Michel Elie,Sebastian A. R. Ellis,Rikard Enberg,Yasaman Farzan,Max Fieg,Ana Foguel,Patrick Foldenauer,Saeid Foroughi-Abari,Jean-François Fortin,Alexander Friedland,Elina Fuchs,M. Fucilla,Kai Gallmeister,Alfonso Garcia,C. A. García Canal,Maria Vittoria Garzelli,R. Gauld,Sumit Ghosh,Anish Ghoshal,Stephen Gibson,Francesco Giuli,Victor P. Goncalves,Dmitry Gorbunov,Srubabati Goswami,S Grau,Julian Y. Gunther,Marco Guzzi,Andrew R. Haas,Timo Hakulinen,Steven P. Harris,Julia Harz,Juan Carlos Herrera,Christopher S. Hill,Martin Hirsch,Timothy Hobbs,S. Hoche,Andrzej Hryczuk,Fei Huang,Tomohiro Inada,Angelo Infantino,Ameen Ismail,R. Jacobsson,Sudip Jana,Yu Seon Jeong,Tomas Jevzo,Yong woo Jho,Krzysztof Jodłowski,Dmitry Kalashnikov,Timo J. Karkkainen,C. E. Keppel,Jong-Kuk Kim,Michael Klasen,S. R. Klein,Pyungwon Ko,Dominik Kohler,Masahiro Komatsu,K. Kovavr'ik,Suchita Kulkarni,Jason Kumar,Karan Kumar,Jui-Lin Kuo,Frank Krauss,Aleksander Kusina,Maxim Laletin,Chiara Le Roux,Seung Jin Lee,Hye-Sung Lee,Helena Lefebvre,Jinmian Li,Shuailong Li,Yi-Chen Li,Wei J Liu,Zhen Li,Mickael Lonjon,Kun-Feng Lyu,Rafal Maciula,Roshan Mammen Abraham,M.R. Masouminia,Josh Mcfayden,Oleksii Mikulenko,Mohammed M. A. Mohammed,Kirtimaan A. Mohan,Jorge G. Morfin,Ulrich Mosel,Martin Mosny,K. F. Muzakka,Pavel Nadolsky,Toshiyuki Nakano,Saurabh Nangia,A. Navascues Cornago,Laurence Nevay,P. Ninin,Emanuele R. Nocera,Takaaki Nomura,R Nunes,Nobuchika Okada,Fredrick I. Olness,J. P. Osborne,Hidetoshi Otono,Maksym Ovchynnikov,Alessandro Papa,Junle Pei,G. Peón,Gilad Perez,L. Pickering,S. Platzer,Ryan Plestid,Tanmay Kumar Poddar,Mudit Rai,Meshkat Rajaee,Digesh Raut,Peter Reimitz,Filippo Resnati,Wolfgang Rhode,Peter J. Richardson,Adam Ritz,Hiroki Rokujo,Leszek Roszkowski,Tim Ruhe,Richard Ruiz,M. Sabaté-Gilarte,Alexander Sandrock,Ina Sarcevic,S. Sarkar,Osamu Sato,Christiane Scherb,Ingo Schienbein,Holger Schulz,Pedro Schwaller,S. J. Sciutto,Dipan Sengupta,Lesya Shchutska,Takashi Shimomura,Federico Silvetti,Kuver Sinha,Torbjorn Sjostrand,Jan T. Sobczyk,Huayang Song,Jorge F. Soriano,Yotam Soreq,Anna Stasto,David Stuart,Shufang Su,Wei Sun,Antoni Szczurek,Zahra Tabrizi,Yosuke Takubo,Marco Taoso,Brooks Thomas,P.A. Thonet,Douglas Tuckler,Agustin Sabio Vera,H. Vincke,K. N. Vishnudath,Zeren Simon Wang,M. Winkler,Wen Chao Wu,Keping Xie,Xun-Jie Xu,Tevong You,Ji-Young Yu,Jiang-Hao Yu,Korinna Zapp,Yongchao Zhang,Yue Zhang,Guanghui Zhou,R. Zukanovich Funchal +235 more
TL;DR: The Forward Physics Facility (FPF) as mentioned in this paper is a suite of experiments to probe standard model processes and search for physics beyond the standard model (BSM) beyond the acceptance of existing LHC experiments.
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Journal ArticleDOI
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Reflecting on chirality: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math> -violating extensions of the single scalar-leptoquark solutions for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo stretchy="false">(</mml:mo><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn><mml:msub><mml:mo stretchy="false">)</mml:mo><mml:mrow><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:mi>μ</mml:mi></mml:…
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Journal ArticleDOI
Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector.
P. Abratenko,R. An,J. Anthony,J. Asaadi,Avi Ashkenazi,Avi Ashkenazi,S. Balasubramanian,B. Baller,C. Barnes,G.D. Barr,V. Basque,L. Bathe-Peters,O. Benevides Rodrigues,S. Berkman,A. Bhanderi,A. Bhat,M. Bishai,Andrew Blake,T. A. Bolton,J. Y. Book,L. Camilleri,D. Caratelli,I. Caro Terrazas,R. Castillo Fernandez,F. Cavanna,Giuseppe Benedetto Cerati,Yi Chen,D. Cianci,Janet Conrad,M. E. Convery,L. Cooper-Troendle,J. I. Crespo-Anadón,M. Del Tutto,S. Dennis,D. Devitt,R. Diurba,R. Dorrill,K. E. Duffy,S. A. Dytman,B. Eberly,Antonio Ereditato,John Evans,R. Fine,G. A. Fiorentini Aguirre,R. S. Fitzpatrick,B.T. Fleming,N. Foppiani,D. Franco,A. P. Furmanski,D. Garcia-Gamez,Steven Gardiner,G. Ge,S. Gollapinni,S. Gollapinni,O. Goodwin,E. Gramellini,Patrick Green,H. Greenlee,W. Q. Gu,R. Guenette,P. Guzowski,L. Hagaman,E. D. Hall,Or Hen,G. A. Horton-Smith,A. Hourlier,R. Itay,C. James,Xiaolu Ji,L. Jiang,J. H. Jo,R. A. Johnson,Y.-J. Jwa,N. Kamp,N. Kaneshige,G. Karagiorgi,W. Ketchum,M. Kirby,T. Kobilarcik,I. Kreslo,R. LaZur,I. Lepetic,K. Li,Yichen Li,K. Lin,B. R. Littlejohn,W. C. Louis,X. Luo,K. Manivannan,C. Mariani,D. Marsden,John Marshall,D. A. Martinez Caicedo,K. Mason,A. Mastbaum,N. McConkey,V. Meddage,T. Mettler,Kate C. Miller,J. Mills,K. Mistry,A. Mogan,T. A. Mohayai,J. Moon,M. Mooney,A. F. Moor,C. D. Moore,L. Mora Lepin,J. Mousseau,Michael T. Murphy,D. Naples,A. Navrer-Agasson,R. K. Neely,J. A. Nowak,M. Nunes,Ornella Palamara,V. Paolone,Afroditi Papadopoulou,V. Papavassiliou,S. F. Pate,A. Paudel,Z. Pavlovic,E. Piasetzky,I. Ponce-Pinto,I. Ponce-Pinto,S. Prince,Xiaohui Qian,J. L. Raaf,Veljko Radeka,A. Rafique,M. Reggiani-Guzzo,L. Ren,L. C. J. Rice,L. Rochester,J. Rodriguez Rondon,H. E. Rogers,M. Rosenberg,M. Ross-Lonergan,G. Scanavini,D. W. Schmitz,A. Schukraft,W. G. Seligman,M. H. Shaevitz,R. Sharankova,J. Shi,H. Siegel,J. Sinclair,Andrew Smith,E.L. Snider,M. Soderberg,S. Söldner-Rembold,Panagiotis Spentzouris,J. Spitz,M. Stancari,J. St. John,Thomas Strauss,K. Sutton,S. Sword-Fehlberg,A. M. Szelc,A. M. Szelc,N. Tagg,William Tang,Kazuhiro Terao,C. Thorpe,D. Totani,M. Toups,Y.-T. Tsai,M. A. Uchida,T. Usher,W. Van De Pontseele,W. Van De Pontseele,B. Viren,Marc Weber,H. Y. Wei,Z. Williams,S. Wolbers,T. Wongjirad,M. Wospakrik,K. Wresilo,N. Wright,Wei Wu,E. Yandel,T. Yang,G. Yarbrough,L.E. Yates,G. P. Zeller,J. Zennamo,C. Zhang +187 more
TL;DR: In this article, the decays of a neutral scalar boson produced by kaons decaying at rest, in the context of the Higgs portal model, using the MicroBooNE detector, were analyzed.
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TL;DR: Geant4 as discussed by the authors is a software toolkit for the simulation of the passage of particles through matter, which is used by a large number of experiments and projects in a variety of application domains, including high energy physics, astrophysics and space science, medical physics and radiation protection.
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TL;DR: In this paper, the authors describe a framework for the presentation of search results which is motivated by frequentist statistics, and argue that the so-called CLs technique for setting limits is appropriate for determining exclusion intervals while the determination of confidence intervals advocated by Feldman and Cousins' method is more appropriate for treating established signals, i.e. going beyond discovery to measurement.
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