Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam.
نویسندگان
- K Abe
- N Abgrall
- Y Ajima
- H Aihara
- J B Albert
- C Andreopoulos
- B Andrieu
- S Aoki
- O Araoka
- J Argyriades
- A Ariga
- T Ariga
- S Assylbekov
- D Autiero
- A Badertscher
- M Barbi
- G J Barker
- G Barr
- M Bass
- F Bay
- S Bentham
- V Berardi
- B E Berger
- I Bertram
- M Besnier
- J Beucher
- D Beznosko
- S Bhadra
- F d M M Blaszczyk
- A Blondel
- C Bojechko
- J Bouchez
- S B Boyd
- A Bravar
- C Bronner
- D G Brook-Roberge
- N Buchanan
- H Budd
- D Calvet
- S L Cartwright
- A Carver
- R Castillo
- M G Catanesi
- A Cazes
- A Cervera
- C Chavez
- S Choi
- G Christodoulou
- J Coleman
- W Coleman
- G Collazuol
- K Connolly
- A Curioni
- A Dabrowska
- I Danko
- R Das
- G S Davies
- S Davis
- M Day
- G De Rosa
- J P A M de André
- P de Perio
- A Delbart
- C Densham
- F Di Lodovico
- S Di Luise
- P Dinh Tran
- J Dobson
- U Dore
- O Drapier
- F Dufour
- J Dumarchez
- S Dytman
- M Dziewiecki
- M Dziomba
- S Emery
- A Ereditato
- L Escudero
- L S Esposito
- M Fechner
- A Ferrero
- A J Finch
- E Frank
- Y Fujii
- Y Fukuda
- V Galymov
- F C Gannaway
- A Gaudin
- A Gendotti
- M A George
- S Giffin
- C Giganti
- K Gilje
- T Golan
- M Goldhaber
- J J Gomez-Cadenas
- M Gonin
- N Grant
- A Grant
- P Gumplinger
- P Guzowski
- A Haesler
- M D Haigh
- K Hamano
- C Hansen
- D Hansen
- T Hara
- P F Harrison
- B Hartfiel
- M Hartz
- T Haruyama
- T Hasegawa
- N C Hastings
- S Hastings
- A Hatzikoutelis
- K Hayashi
- Y Hayato
- C Hearty
- R L Helmer
- R Henderson
- N Higashi
- J Hignight
- E Hirose
- J Holeczek
- S Horikawa
- A Hyndman
- A K Ichikawa
- K Ieki
- M Ieva
- M Iida
- M Ikeda
- J Ilic
- J Imber
- T Ishida
- C Ishihara
- T Ishii
- S J Ives
- M Iwasaki
- K Iyogi
- A Izmaylov
- B Jamieson
- R A Johnson
- K K Joo
- G V Jover-Manas
- C K Jung
- H Kaji
- T Kajita
- H Kakuno
- J Kameda
- K Kaneyuki
- D Karlen
- K Kasami
- I Kato
- E Kearns
- M Khabibullin
- F Khanam
- A Khotjantsev
- D Kielczewska
- T Kikawa
- J Kim
- J Y Kim
- S B Kim
- N Kimura
- B Kirby
- J Kisiel
- P Kitching
- T Kobayashi
- G Kogan
- S Koike
- A Konaka
- L L Kormos
- A Korzenev
- K Koseki
- Y Koshio
- Y Kouzuma
- K Kowalik
- V Kravtsov
- I Kreslo
- W Kropp
- H Kubo
- Y Kudenko
- N Kulkarni
- R Kurjata
- T Kutter
- J Lagoda
- K Laihem
- M Laveder
- K P Lee
- P T Le
- J M Levy
- C Licciardi
- I T Lim
- T Lindner
- R P Litchfield
- M Litos
- A Longhin
- G D Lopez
- P F Loverre
- L Ludovici
- T Lux
- M Macaire
- K Mahn
- Y Makida
- M Malek
- S Manly
- A Marchionni
- A D Marino
- J Marteau
- J F Martin
- T Maruyama
- T Maryon
- J Marzec
- P Masliah
- E L Mathie
- C Matsumura
- K Matsuoka
- V Matveev
- K Mavrokoridis
- E Mazzucato
- N McCauley
- K S McFarland
- C McGrew
- T McLachlan
- M Messina
- W Metcalf
- C Metelko
- M Mezzetto
- P Mijakowski
- C A Miller
- A Minamino
- O Mineev
- S Mine
- A D Missert
- G Mituka
- M Miura
- K Mizouchi
- L Monfregola
- F Moreau
- B Morgan
- S Moriyama
- A Muir
- A Murakami
- M Murdoch
- S Murphy
- J Myslik
- T Nakadaira
- M Nakahata
- T Nakai
- K Nakajima
- T Nakamoto
- K Nakamura
- S Nakayama
- T Nakaya
- D Naples
- M L Navin
- B Nelson
- T C Nicholls
- K Nishikawa
- H Nishino
- J A Nowak
- M Noy
- Y Obayashi
- T Ogitsu
- H Ohhata
- T Okamura
- K Okumura
- T Okusawa
- S M Oser
- M Otani
- R A Owen
- Y Oyama
- T Ozaki
- M Y Pac
- V Palladino
- V Paolone
- P Paul
- D Payne
- G F Pearce
- J D Perkin
- V Pettinacci
- F Pierre
- E Poplawska
- B Popov
- M Posiadala
- J-M Poutissou
- R Poutissou
- P Przewlocki
- W Qian
- J L Raaf
- E Radicioni
- P N Ratoff
- T M Raufer
- M Ravonel
- M Raymond
- F Retiere
- A Robert
- P A Rodrigues
- E Rondio
- J M Roney
- B Rossi
- S Roth
- A Rubbia
- D Ruterbories
- S Sabouri
- R Sacco
- K Sakashita
- F Sánchez
- A Sarrat
- K Sasaki
- K Scholberg
- J Schwehr
- M Scott
- D I Scully
- Y Seiya
- T Sekiguchi
- H Sekiya
- M Shibata
- Y Shimizu
- M Shiozawa
- S Short
- M Siyad
- R J Smith
- M Smy
- J T Sobczyk
- H Sobel
- M Sorel
- A Stahl
- P Stamoulis
- J Steinmann
- B Still
- J Stone
- C Strabel
- L R Sulak
- R Sulej
- P Sutcliffe
- A Suzuki
- K Suzuki
- S Suzuki
- S Y Suzuki
- Y Suzuki
- T Szeglowski
- M Szeptycka
- R Tacik
- M Tada
- S Takahashi
- A Takeda
- Y Takenaga
- Y Takeuchi
- K Tanaka
- H A Tanaka
- M Tanaka
- M M Tanaka
- N Tanimoto
- K Tashiro
- I Taylor
- A Terashima
- D Terhorst
- R Terri
- L F Thompson
- A Thorley
- W Toki
- T Tomaru
- Y Totsuka
- C Touramanis
- T Tsukamoto
- M Tzanov
- Y Uchida
- K Ueno
- A Vacheret
- M Vagins
- G Vasseur
- T Wachala
- J J Walding
- A V Waldron
- C W Walter
- P J Wanderer
- J Wang
- M A Ward
- G P Ward
- D Wark
- M O Wascko
- A Weber
- R Wendell
- N West
- L H Whitehead
- G Wikström
- R J Wilkes
- M J Wilking
- J R Wilson
- R J Wilson
- T Wongjirad
- S Yamada
- Y Yamada
- A Yamamoto
- K Yamamoto
- Y Yamanoi
- H Yamaoka
- C Yanagisawa
- T Yano
- S Yen
- N Yershov
- M Yokoyama
- A Zalewska
- J Zalipska
- L Zambelli
- K Zaremba
- M Ziembicki
- E D Zimmerman
- M Zito
- J Żmuda
چکیده
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3) eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7×10(-3), equivalent to 2.5σ significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2θ(13) < 0.28(0.34) for δ(CP) = 0 and a normal (inverted) hierarchy.
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عنوان ژورنال:
- Physical review letters
دوره 107 4 شماره
صفحات -
تاریخ انتشار 2011