Measurement of Neutrino Oscillation Parameters with the First Six Detection Units of KM3NeT/ORCA
S. Aiello,A. Albert,A. R. Alhebsi,M. Alshamsi,S. Alves Garre,A. Ambrosone,F. Ameli,M. Andre,L. Aphecetche,M. Ardid,S. Ardid,H. Atmani,J. Aublin,F. Badaracco,L. Bailly-Salins,Z. Bardačová,B. Baret,A. Bariego-Quintana,Y. Becherini,M. Bendahman,F. Benfenati,M. Benhassi,M. Bennani,D. M. Benoit,E. Berbee,V. Bertin,S. Biagi,M. Boettcher,D. Bonanno,A. B. Bouasla,J. Boumaaza,M. Bouta,M. Bouwhuis,C. Bozza,R. M. Bozza,H. Brânzaş,F. Bretaudeau,M. Breuhaus,R. Bruijn,J. Brunner,R. Bruno,E. Buis,R. Buompane,J. Busto,B. Caiffi,D. Calvo,A. Capone,F. Carenini,V. Carretero,T. Cartraud,P. Castaldi,V. Cecchini,S. Celli,L. Cerisy,M. Chabab,A. Chen,S. Cherubini,T. Chiarusi,M. Circella,R. Cocimano,J. A. B. Coelho,A. Coleiro,A. Condorelli,R. Coniglione,P. Coyle,A. Creusot,G. Cuttone,R. Dallier,A. De Benedittis,B. De Martino,G. De Wasseige,V. Decoene,I. Del Rosso,L. S. Di Mauro,I. Di Palma,A. F. Díaz,D. Diego-Tortosa,C. Distefano,A. Domi,C. Donzaud,D. Dornic,E. Drakopoulou,D. Drouhin,J.-G. Ducoin,R. Dvornický,T. Eberl,E. Eckerová,A. Eddymaoui,T. van Eeden,M. Eff,D. van Eijk,I. El Bojaddaini,S. El Hedri,V. Ellajosyula,A. Enzenhöfer,G. Ferrara,M. D. Filipović,F. Filippini,D. Franciotti,L. A. Fusco,S. Gagliardini,T. Gal,J. García Méndez,A. Garcia Soto,C. Gatius Oliver,N. Geißelbrecht,E. Genton,H. Ghaddari,L. Gialanella,B. K. Gibson,E. Giorgio,I. Goos,P. Goswami,S. R. Gozzini,R. Gracia,C. Guidi,B. Guillon,M. Gutiérrez,C. Haack,H. van Haren,A. Heijboer,L. Hennig,J. J. Hernández-Rey,W. Idrissi Ibnsalih,G. Illuminati,D. Joly,M. de Jong,P. de Jong,B. J. Jung,G. Kistauri,C. Kopper,A. Kouchner,Y. Y. Kovalev,V. Kueviakoe,V. Kulikovskiy,R. Kvatadze,M. Labalme,R. Lahmann,M. Lamoureux,G. Larosa,C. Lastoria,A. Lazo,S. Le Stum,G. Lehaut,V. Lemaître,E. Leonora,N. Lessing,G. Levi,M. Lindsey Clark,F. Longhitano,F. Magnani,J. Majumdar,L. Malerba,F. Mamedov,J. Mańczak,A. Manfreda,M. Marconi,A. Margiotta,A. Marinelli,C. Markou,L. Martin,M. Mastrodicasa,S. Mastroianni,J. Mauro,G. Miele,P. Migliozzi,E. Migneco,M. L. Mitsou,C. M. Mollo,L. Morales-Gallegos,A. Moussa,I. Mozun Mateo,R. Muller,M. R. Musone,M. Musumeci,S. Navas,A. Nayerhoda,C. A. Nicolau,B. Nkosi,B. Ó Fearraigh,V. Oliviero,A. Orlando,E. Oukacha,D. Paesani,J. Palacios González,G. Papalashvili,V. Parisi,E. J. Pastor Gomez,A. M. Păun,G. E. Păvălaş,S. Peña Martínez,M. Perrin-Terrin,V. Pestel,R. Pestes,P. Piattelli,A. Plavin,C. Poirè,V. Popa,T. Pradier,J. Prado,S. Pulvirenti,C. A. Quiroz-Rangel,N. Randazzo,S. Razzaque,I. C. Rea,D. Real,G. Riccobene,J. Robinson,A. Romanov,E. Ros,A. Šaina,F. Salesa Greus,D. F. E. Samtleben,A. Sánchez Losa,S. Sanfilippo,M. Sanguineti,D. Santonocito,P. Sapienza,J. Schnabel,J. Schumann,H. M. Schutte,J. Seneca,I. Sgura,R. Shanidze,A. Sharma,Y. Shitov,F. Šimkovic,A. Simonelli,A. Sinopoulou,B. Spisso,M. Spurio,D. Stavropoulos,I. Štekl,S. M. Stellacci,M. Taiuti,Y. Tayalati,H. Thiersen,S. Thoudam,I. Tosta e Melo,B. Trocmé,V. Tsourapis,A. Tudorache,E. Tzamariudaki,A. Ukleja,A. Vacheret,V. Valsecchi,V. Van Elewyck,G. Vannoye,G. Vasileiadis,F. Vazquez de Sola,A. Veutro,S. Viola,D. Vivolo,A. van Vliet,E. de Wolf,I. Lhenry-Yvon,S. Zavatarelli,A. Zegarelli,D. Zito,J. D. Zornoza,J. Zúñiga,N. Zywucka
Journal of High Energy Physics（2024）
引用0|浏览11
暂无评分
摘要
KM3NeT/ORCA is a water Cherenkov neutrino detector under construction and anchored at the bottom of the Mediterranean Sea. The detector is designed to study oscillations of atmospheric neutrinos and determine the neutrino mass ordering. This paper focuses on an initial configuration of ORCA, referred to as ORCA6, which comprises six out of the foreseen 115 detection units of photo-sensors. A high-purity neutrino sample was extracted, corresponding to an exposure of 433 kton-years. The sample of 5828 neutrino candidates is analysed following a binned log-likelihood method in the reconstructed energy and cosine of the zenith angle. The atmospheric oscillation parameters are measured to be sin^2θ_23=0.51_-0.05^+0.04 , and Δm_31^2=2.18_-0.35^+0.25×10^-3eV^2∪{-2.25,-1.76}×10^-3 eV2 at 68
更多
查看译文
关键词
Neutrino Detectors and Telescopes (experiments),Oscillation
