Measurement of Muon Antineutrino Oscillations with an Accelerator-Produced Off-Axis Beam. K Abe , C Andreopoulos , M Antonova , S Aoki , A Ariga , S Assylbekov , D Autiero , M Barbi , G J Barker , G Barr , P Bartet-Friburg , M Batkiewicz , F Bay , V Berardi , S Berkman , S Bhadra , A Blondel , S Bolognesi , S Bordoni , S B Boyd , D Brailsford , A Bravar , C Bronner , M Buizza Avanzini , R G Calland , S Cao , J Caravaca Rodríguez , S L Cartwright , R Castillo , M G Catanesi , A Cervera , D Cherdack , N Chikuma , G Christodoulou , A Clifton , J Coleman , G Collazuol , L Cremonesi , A Dabrowska , G De Rosa , T Dealtry , P F Denner , S R Dennis , C Densham , D Dewhurst , F Di Lodovico , S Di Luise , S Dolan , O Drapier , K E Duffy , J Dumarchez , S Dytman , M Dziewiecki , S Emery-Schrenk , A Ereditato , T Feusels , A J Finch , G A Fiorentini , M Friend , Y Fujii , D Fukuda , Y Fukuda , A P Furmanski , V Galymov , A Garcia , S G Giffin , C Giganti , F Gizzarelli , M Gonin , N Grant , D R Hadley , L Haegel , M D Haigh , P Hamilton , D Hansen , T Hara , M Hartz , T Hasegawa , N C Hastings , T Hayashino , Y Hayato , R L Helmer , M Hierholzer , A Hillairet , A Himmel , T Hiraki , S Hirota , M Hogan , J Holeczek , S Horikawa , F Hosomi , K Huang , A K Ichikawa , K Ieki , M Ikeda , J Imber , J Insler , R A Intonti , T J Irvine , T Ishida , T Ishii , E Iwai , K Iwamoto , A Izmaylov , A Jacob , B Jamieson , M Jiang , S Johnson , J H Jo , P Jonsson , C K Jung , M Kabirnezhad , A C Kaboth , T Kajita , H Kakuno , J Kameda , D Karlen , I Karpikov , T Katori , E Kearns , M Khabibullin , A Khotjantsev , D Kielczewska , T Kikawa , H Kim , J Kim , S King , J Kisiel , A Knight , A Knox , T Kobayashi , L Koch , T Koga , A Konaka , K Kondo , A Kopylov , L L Kormos , A Korzenev , Y Koshio , W Kropp , Y Kudenko , R Kurjata , T Kutter , J Lagoda , I Lamont , E Larkin , M Laveder , M Lawe , M Lazos , T Lindner , Z J Liptak , R P Litchfield , X Li , A Longhin , J P Lopez , L Ludovici , X Lu , L Magaletti , K Mahn , M Malek , S Manly , A D Marino , J Marteau , J F Martin , P Martins , S Martynenko , T Maruyama , V Matveev , K Mavrokoridis , W Y Ma , E Mazzucato , M McCarthy , N McCauley , K S McFarland , C McGrew , A Mefodiev , M Mezzetto , P Mijakowski , A Minamino , O Mineev , S Mine , A Missert , M Miura , S Moriyama , Th A Mueller , S Murphy , J Myslik , T Nakadaira , M Nakahata , K G Nakamura , K Nakamura , K D Nakamura , S Nakayama , T Nakaya , K Nakayoshi , C Nantais , C Nielsen , M Nirkko , K Nishikawa , Y Nishimura , J Nowak , H M O'Keeffe , R Ohta , K Okumura , T Okusawa , W Oryszczak , S M Oser , T Ovsyannikova , R A Owen , Y Oyama , V Palladino , J L Palomino , V Paolone , N D Patel , M Pavin , D Payne , J D Perkin , Y Petrov , L Pickard , L Pickering , E S Pinzon Guerra , C Pistillo , B Popov , M Posiadala-Zezula , J-M Poutissou , R Poutissou , P Przewlocki , B Quilain , E Radicioni , P N Ratoff , M Ravonel , M A M Rayner , A Redij , E Reinherz-Aronis , C Riccio , P Rojas , E Rondio , S Roth , A Rubbia , A Rychter , R Sacco , K Sakashita , F Sánchez , F Sato , E Scantamburlo , K Scholberg , S Schoppmann , J Schwehr , M Scott , Y Seiya , T Sekiguchi , H Sekiya , D Sgalaberna , R Shah , A Shaikhiev , F Shaker , D Shaw , M Shiozawa , T Shirahige , S Short , M Smy , J T Sobczyk , M Sorel , L Southwell , P Stamoulis , J Steinmann , T Stewart , Y Suda , S Suvorov , A Suzuki , K Suzuki , S Y Suzuki , Y Suzuki , R Tacik , M Tada , S Takahashi , A Takeda , Y Takeuchi , H K Tanaka , H A Tanaka , D Terhorst , R Terri , T Thakore , L F Thompson , S Tobayama , W Toki , T Tomura , C Touramanis , T Tsukamoto , M Tzanov , Y Uchida , A Vacheret , M Vagins , Z Vallari , G Vasseur , T Wachala , K Wakamatsu , C W Walter , D Wark , W Warzycha , M O Wascko , A Weber , R Wendell , R J Wilkes , M J Wilking , C Wilkinson , J R Wilson , R J Wilson , Y Yamada , K Yamamoto , M Yamamoto , C Yanagisawa , T Yano , S Yen , N Yershov , M Yokoyama , J Yoo , K Yoshida , T Yuan , M Yu , A Zalewska , J Zalipska , L Zambelli , K Zaremba , M Ziembicki , E D Zimmerman , M Zito , J Żmuda , PHYSICAL REVIEW LETTERS（2016）
摘要
T2K reports its first measurements of the parameters governing the disappearance of ν[over ¯]_{μ} in an off-axis beam due to flavor change induced by neutrino oscillations. The quasimonochromatic ν[over ¯]_{μ} beam, produced with a peak energy of 0.6 GeV at J-PARC, is observed at the far detector Super-Kamiokande, 295 km away, where the ν[over ¯]_{μ} survival probability is expected to be minimal. Using a data set corresponding to 4.01×10^{20} protons on target, 34 fully contained μ-like events were observed. The best-fit oscillation parameters are sin^{2}(θ[over ¯]_{23})=0.45 and |Δm[over ¯]_{32}^{2}|=2.51×10^{-3} eV^{2} with 68% confidence intervals of 0.38-0.64 and 2.26-2.80×10^{-3} eV^{2}, respectively. These results are in agreement with existing antineutrino parameter measurements and also with the ν_{μ} disappearance parameters measured by T2K.
更多 查看译文
AI 理解论文
溯源树
样例
