Precise measurement of the neutrino mixing parameter θ23 from muon neutrino disappearance in an off-axis beam.
نویسندگان
- K Abe
- J Adam
- H Aihara
- T Akiri
- C Andreopoulos
- S Aoki
- A Ariga
- T Ariga
- S Assylbekov
- D Autiero
- M Barbi
- G J Barker
- G Barr
- M Bass
- M Batkiewicz
- F Bay
- S W Bentham
- V Berardi
- B E Berger
- S Berkman
- I Bertram
- S Bhadra
- F d M Blaszczyk
- A Blondel
- C Bojechko
- S Bordoni
- S B Boyd
- D Brailsford
- A Bravar
- C Bronner
- N Buchanan
- R G Calland
- J Caravaca Rodríguez
- S L Cartwright
- R Castillo
- M G Catanesi
- A Cervera
- D Cherdack
- G Christodoulou
- A Clifton
- J Coleman
- S J Coleman
- G Collazuol
- K Connolly
- L Cremonesi
- A Dabrowska
- I Danko
- R Das
- S Davis
- P de Perio
- G De Rosa
- T Dealtry
- S R Dennis
- C Densham
- F Di Lodovico
- S Di Luise
- O Drapier
- T Duboyski
- K Duffy
- F Dufour
- J Dumarchez
- S Dytman
- M Dziewiecki
- S Emery
- A Ereditato
- L Escudero
- A J Finch
- L Floetotto
- M Friend
- Y Fujii
- Y Fukuda
- A P Furmanski
- V Galymov
- S Giffin
- C Giganti
- K Gilje
- D Goeldi
- T Golan
- M Gonin
- N Grant
- D Gudin
- D R Hadley
- A Haesler
- M D Haigh
- P Hamilton
- D Hansen
- T Hara
- M Hartz
- T Hasegawa
- N C Hastings
- Y Hayato
- C Hearty
- R L Helmer
- M Hierholzer
- J Hignight
- A Hillairet
- A Himmel
- T Hiraki
- S Hirota
- J Holeczek
- S Horikawa
- K Huang
- A K Ichikawa
- K Ieki
- M Ieva
- M Ikeda
- J Imber
- J Insler
- T J Irvine
- T Ishida
- T Ishii
- S J Ives
- E Iwai
- K Iyogi
- A Izmaylov
- A Jacob
- B Jamieson
- R A Johnson
- J H Jo
- P Jonsson
- C K Jung
- M Kabirnezhad
- A C Kaboth
- T Kajita
- H Kakuno
- J Kameda
- Y Kanazawa
- D Karlen
- I Karpikov
- E Kearns
- M Khabibullin
- A Khotjantsev
- D Kielczewska
- T Kikawa
- A Kilinski
- J Kim
- J Kisiel
- P Kitching
- T Kobayashi
- L Koch
- A Kolaceke
- A Konaka
- L L Kormos
- A Korzenev
- K Koseki
- Y Koshio
- I Kreslo
- W Kropp
- H Kubo
- Y Kudenko
- S Kumaratunga
- R Kurjata
- T Kutter
- J Lagoda
- K Laihem
- I Lamont
- M Laveder
- M Lawe
- M Lazos
- K P Lee
- T Lindner
- C Lister
- R P Litchfield
- A Longhin
- L Ludovici
- M Macaire
- L Magaletti
- K Mahn
- M Malek
- S Manly
- A D Marino
- J Marteau
- J F Martin
- T Maruyama
- J Marzec
- E L Mathie
- V Matveev
- K Mavrokoridis
- E Mazzucato
- M McCarthy
- N McCauley
- K S McFarland
- C McGrew
- C Metelko
- M Mezzetto
- P Mijakowski
- C A Miller
- A Minamino
- O Mineev
- S Mine
- A Missert
- M Miura
- L Monfregola
- S Moriyama
- Th A Mueller
- A Murakami
- M Murdoch
- S Murphy
- J Myslik
- T Nagasaki
- T Nakadaira
- M Nakahata
- T Nakai
- K Nakamura
- S Nakayama
- T Nakaya
- K Nakayoshi
- D Naples
- C Nielsen
- M Nirkko
- K Nishikawa
- Y Nishimura
- H M O'Keeffe
- R Ohta
- K Okumura
- T Okusawa
- W Oryszczak
- S M Oser
- R A Owen
- Y Oyama
- V Palladino
- J Palomino
- V Paolone
- D Payne
- O Perevozchikov
- J D Perkin
- Y Petrov
- L Pickard
- E S Pinzon Guerra
- C Pistillo
- P Plonski
- E Poplawska
- B Popov
- M Posiadala
- J-M Poutissou
- R Poutissou
- P Przewlocki
- B Quilain
- E Radicioni
- P N Ratoff
- M Ravonel
- M A M Rayner
- A Redij
- M Reeves
- E Reinherz-Aronis
- F Retiere
- A Robert
- P A Rodrigues
- P Rojas
- E Rondio
- S Roth
- A Rubbia
- D Ruterbories
- 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
- M Shiozawa
- S Short
- Y Shustrov
- P Sinclair
- B Smith
- R J Smith
- M Smy
- J T Sobczyk
- H Sobel
- M Sorel
- L Southwell
- P Stamoulis
- J Steinmann
- B Still
- Y Suda
- A Suzuki
- K Suzuki
- S Y Suzuki
- Y Suzuki
- T Szeglowski
- R Tacik
- M Tada
- S Takahashi
- A Takeda
- Y Takeuchi
- H K Tanaka
- H A Tanaka
- M M Tanaka
- D Terhorst
- R Terri
- L F Thompson
- A Thorley
- S Tobayama
- W Toki
- T Tomura
- Y Totsuka
- C Touramanis
- T Tsukamoto
- M Tzanov
- Y Uchida
- K Ueno
- A Vacheret
- M Vagins
- G Vasseur
- T Wachala
- A V Waldron
- C W Walter
- D Wark
- M O Wascko
- A Weber
- R Wendell
- R J Wilkes
- M J Wilking
- C Wilkinson
- Z Williamson
- J R Wilson
- R J Wilson
- T Wongjirad
- Y Yamada
- K Yamamoto
- C Yanagisawa
- S Yen
- N Yershov
- M Yokoyama
- T Yuan
- M Yu
- A Zalewska
- J Zalipska
- L Zambelli
- K Zaremba
- M Ziembicki
- E D Zimmerman
- M Zito
- J Żmuda
چکیده
New data from the T2K neutrino oscillation experiment produce the most precise measurement of the neutrino mixing parameter θ23. Using an off-axis neutrino beam with a peak energy of 0.6 GeV and a data set corresponding to 6.57×10(20) protons on target, T2K has fit the energy-dependent νμ oscillation probability to determine oscillation parameters. The 68% confidence limit on sin(2)(θ23) is 0.514(-0.056)(+0.055) (0.511±0.055), assuming normal (inverted) mass hierarchy. The best-fit mass-squared splitting for normal hierarchy is Δm32(2)=(2.51±0.10)×10(-3) eV(2)/c(4) (inverted hierarchy: Δm13(2)=(2.48±0.10)×10(-3) eV(2)/c(4)). Adding a model of multinucleon interactions that affect neutrino energy reconstruction is found to produce only small biases in neutrino oscillation parameter extraction at current levels of statistical uncertainty.
منابع مشابه
Results from MINOS and NOνA
The MINOS experiment, operating in the NuMI beam since 2005, has provided the most precise measurement of the atmospheric mass splitting |∆m232|, and the recent combination of the νμ, νe, and atmospheric neutrino samples has provided some evidence of non-maximal mixing, and hints about the neutrino mass hierarchy and the θ23 octant. Construction of the NOνA experiment, situated off-axis in the ...
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ورودعنوان ژورنال:
- Physical review letters
دوره 112 18 شماره
صفحات -
تاریخ انتشار 2014