Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
J. Zmuda
,
M. Zito
,
E. D. Zimmerman
,
M. Ziembicki
,
K. Zaremba
,
L. Zambelli
(1)
,
J. Zalipska
,
A. Zalewska
,
M. Yu
,
T. Yuan
,
M. Yokoyama
,
N. Yershov
,
S. Yen
,
C. Yanagisawa
,
K. Yamamoto
,
Y. Yamada
,
T. Wongjirad
,
R. J. Wilson
,
J. R. Wilson
,
Z. Williamson
,
C. Wilkinson
,
M. J. Wilking
,
R. J. Wilkes
,
R. Wendell
,
A. Weber
,
M. O. Wascko
,
D. Wark
,
C. W. Walter
,
A. V. Waldron
,
T. Wachala
,
G. Vasseur
,
M. Vagins
,
A. Vacheret
,
K. Ueno
,
Y. Uchida
,
M. Tzanov
,
T. Tsukamoto
,
C. Touramanis
,
Y. Totsuka
,
T. Tomura
,
W. Toki
,
S. Tobayama
,
A. Thorley
,
L. F. Thompson
,
R. Terri
,
D. Terhorst
,
M. M. Tanaka
,
H. A. Tanaka
,
H. K. Tanaka
,
Y. Takeuchi
,
A. Takeda
,
S. Takahashi
,
M. Tada
,
R. Tacik
,
T. Szeglowski
,
Y. Suzuki
,
S. Y. Suzuki
,
K. Suzuki
,
A. Suzuki
,
Y. Suda
,
B. Still
,
J. Steinmann
,
P. Stamoulis
,
L. Southwell
,
M. Sorel
,
H. Sobel
,
J. T. Sobczyk
,
M. Smy
,
R. J. Smith
,
B. Smith
,
P. Sinclair
,
Y. Shustrov
,
S. Short
,
M. Shiozawa
,
D. Sgalaberna
,
H. Sekiya
,
T. Sekiguchi
,
Y. Seiya
,
M. Scott
,
J. Schwehr
,
S. Schoppmann
,
K. Scholberg
,
E. Scantamburlo
,
F. Sato
,
F. Sánchez
,
K. Sakashita
,
R. Sacco
,
D. Ruterbories
,
A. Rubbia
,
S. Roth
,
E. Rondio
,
P. Rojas
,
P. A. Rodrigues
,
A. Robert
(1)
,
F. Retiere
,
E. Reinherz-Aronis
,
M. Reeves
,
A. Redij
,
M. A. M. Rayner
,
M. Ravonel
,
P. N. Ratoff
,
E. Radicioni
,
B. Quilain
(2)
,
P. Przewlocki
,
R. Poutissou
,
J. M. Poutissou
,
M. Posiadala
,
B. Popov
(1)
,
E. Poplawska
,
P. Plonski
,
C. Pistillo
,
E. S. Pinzon Guerra
,
L. Pickard
,
Y. Petrov
,
J. D. Perkin
,
O. Perevozchikov
,
D. Payne
,
V. Paolone
,
V. Palladino
,
Y. Oyama
,
R. A. Owen
,
S. M. Oser
,
W. Oryszczak
,
T. Okusawa
,
K. Okumura
,
R. Ohta
,
H. M. O'Keeffe
,
Y. Nishimura
,
K. Nishikawa
,
M. Nirkko
,
C. Nielsen
,
D. Naples
,
K. Nakayoshi
,
T. Nakaya
,
S. Nakayama
,
K. Nakamura
,
T. Nakai
,
M. Nakahata
,
T. Nakadaira
,
T. Nagasaki
,
J. Myslik
,
S. Murphy
,
M. Murdoch
,
A. Murakami
,
Th. A. Mueller
(2)
,
S. Moriyama
,
L. Monfregola
,
M. Miura
,
A. Missert
,
S. Mine
,
O. Mineev
,
A. Minamino
,
C. A. Miller
,
P. Mijakowski
,
M. Mezzetto
,
C. Metelko
,
C. Mcgrew
,
K. S. Mcfarland
,
N. Mccauley
,
M. Mccarthy
,
E. Mazzucato
,
K. Mavrokoridis
,
V. Matveev
,
E. L. Mathie
,
J. Marzec
,
T. Maruyama
,
J. F. Martin
,
J. Marteau
(3)
,
A. D. Marino
,
S. Manly
,
M. Malek
,
K. Mahn
,
L. Magaletti
,
M. Macaire
,
L. Ludovici
,
A. Longhin
,
R. P. Litchfield
,
C. Lister
,
T. Lindner
,
K. P. Lee
,
M. Lazos
,
M. Lawe
,
M. Laveder
,
I. Lamont
,
K. Laihem
,
J. Lagoda
,
T. Kutter
,
R. Kurjata
,
S. Kumaratunga
,
Y. Kudenko
,
H. Kubo
,
W. Kropp
,
I. Kreslo
,
Y. Koshio
,
K. Koseki
,
A. Korzenev
,
L. L. Kormos
,
A. Konaka
,
A. Kolaceke
,
L. Koch
,
T. Kobayashi
,
P. Kitching
,
J. Kisiel
,
J. Kim
,
A. Kilinski
,
T. Kikawa
,
D. Kielczewska
,
A. Khotjantsev
,
M. Khabibullin
,
E. Kearns
,
I. Karpikov
,
D. Karlen
,
Y. Kanazawa
,
J. Kameda
,
H. Kakuno
,
T. Kajita
,
A. C. Kaboth
,
M. Kabirnezhad
,
C. K. Jung
,
P. Jonsson
,
J. H. Jo
,
R. A. Johnson
,
B. Jamieson
,
A. Jacob
,
A. Izmaylov
,
K. Iyogi
,
E. Iwai
,
S. J. Ives
,
T. Ishii
,
T. Ishida
,
T. J. Irvine
,
J. Insler
,
J. Imber
,
M. Ikeda
,
M. Ieva
,
K. Ieki
,
A. K. Ichikawa
,
K. Huang
,
S. Horikawa
,
J. Holeczek
,
S. Hirota
,
T. Hiraki
,
A. Himmel
,
A. Hillairet
,
J. Hignight
,
M. Hierholzer
,
R. L. Helmer
,
C. Hearty
,
Y. Hayato
,
N. C. Hastings
,
T. Hasegawa
,
M. Hartz
,
T. Hara
,
D. Hansen
,
P. Hamilton
,
M. D. Haigh
,
A. Haesler
,
D. R. Hadley
,
D. Gudin
,
N. Grant
,
M. Gonin
(2)
,
J. J. Gomez-Cadenas
,
T. Golan
,
D. Goeldi
,
K. Gilje
,
C. Giganti
(1)
,
S. Giffin
,
V. Galymov
,
A. P. Furmanski
,
Y. Fukuda
,
Y. Fujii
,
M. Friend
,
L. Floetotto
,
A. J. Finch
,
L. Escudero
,
A. Ereditato
,
S. Emery
,
M. Dziewiecki
,
S. Dytman
,
J. Dumarchez
(1)
,
Frédéric Dufour
,
K. Duffy
,
T. Duboyski
,
O. Drapier
(2)
,
S. Di Luise
,
F. Di Lodovico
,
C. Densham
,
S. R. Dennis
,
T. Dealtry
,
G. de Rosa
,
P. de Perio
,
S. Davis
,
R. Das
,
I. Danko
,
A. Dabrowska
,
L. Cremonesi
,
K. Connolly
,
G. Collazuol
,
S. J. Coleman
,
J. Coleman
,
A. Clifton
,
G. Christodoulou
,
D. Cherdack
,
A. Cervera
,
M. G. Catanesi
,
R. Castillo
,
S. L. Cartwright
,
J. Caravaca Rodríguez
,
R. G. Calland
,
N. Buchanan
,
C. Bronner
,
A. Bravar
,
D. Brailsford
,
S. B. Boyd
,
S. Bordoni
,
C. Bojechko
,
A. Blondel
(2)
,
F. D. M. Blaszczyk
,
S. Bhadra
,
I. Bertram
,
S. Berkman
,
B. E. Berger
,
V. Berardi
,
S. W. Bentham
,
F. Bay
,
M. Batkiewicz
,
M. Bass
,
G. Barr
,
G. J. Barker
,
M. Barbi
,
D. Autiero
(3)
,
S. Assylbekov
,
T. Ariga
,
A. Ariga
,
S. Aoki
,
C. Andreopoulos
,
T. Akiri
,
H. Aihara
,
J. Adam
,
K. Abe
J. Zmuda
- Function : Author
M. Zito
- Function : Author
E. D. Zimmerman
- Function : Author
M. Ziembicki
- Function : Author
K. Zaremba
- Function : Author
J. Zalipska
- Function : Author
A. Zalewska
- Function : Author
M. Yu
- Function : Author
T. Yuan
- Function : Author
M. Yokoyama
- Function : Author
N. Yershov
- Function : Author
S. Yen
- Function : Author
C. Yanagisawa
- Function : Author
K. Yamamoto
- Function : Author
Y. Yamada
- Function : Author
T. Wongjirad
- Function : Author
R. J. Wilson
- Function : Author
J. R. Wilson
- Function : Author
Z. Williamson
- Function : Author
C. Wilkinson
- Function : Author
M. J. Wilking
- Function : Author
R. J. Wilkes
- Function : Author
R. Wendell
- Function : Author
A. Weber
- Function : Author
M. O. Wascko
- Function : Author
D. Wark
- Function : Author
C. W. Walter
- Function : Author
A. V. Waldron
- Function : Author
T. Wachala
- Function : Author
G. Vasseur
- Function : Author
- PersonId : 745439
- IdHAL : georges-vasseur
M. Vagins
- Function : Author
A. Vacheret
- Function : Author
- PersonId : 1314021
- IdHAL : antonin-vacheret
K. Ueno
- Function : Author
Y. Uchida
- Function : Author
M. Tzanov
- Function : Author
T. Tsukamoto
- Function : Author
C. Touramanis
- Function : Author
Y. Totsuka
- Function : Author
T. Tomura
- Function : Author
W. Toki
- Function : Author
S. Tobayama
- Function : Author
A. Thorley
- Function : Author
L. F. Thompson
- Function : Author
R. Terri
- Function : Author
D. Terhorst
- Function : Author
M. M. Tanaka
- Function : Author
H. A. Tanaka
- Function : Author
H. K. Tanaka
- Function : Author
Y. Takeuchi
- Function : Author
A. Takeda
- Function : Author
S. Takahashi
- Function : Author
M. Tada
- Function : Author
R. Tacik
- Function : Author
T. Szeglowski
- Function : Author
Y. Suzuki
- Function : Author
S. Y. Suzuki
- Function : Author
K. Suzuki
- Function : Author
A. Suzuki
- Function : Author
Y. Suda
- Function : Author
- PersonId : 770194
- ORCID : 0000-0002-2692-5891
B. Still
- Function : Author
J. Steinmann
- Function : Author
P. Stamoulis
- Function : Author
L. Southwell
- Function : Author
M. Sorel
- Function : Author
H. Sobel
- Function : Author
J. T. Sobczyk
- Function : Author
M. Smy
- Function : Author
R. J. Smith
- Function : Author
B. Smith
- Function : Author
P. Sinclair
- Function : Author
Y. Shustrov
- Function : Author
S. Short
- Function : Author
M. Shiozawa
- Function : Author
D. Sgalaberna
- Function : Author
H. Sekiya
- Function : Author
T. Sekiguchi
- Function : Author
Y. Seiya
- Function : Author
M. Scott
- Function : Author
J. Schwehr
- Function : Author
S. Schoppmann
- Function : Author
- PersonId : 739188
- IdHAL : stefan-schoppmann
- ORCID : 0000-0002-7208-0578
- IdRef : 253122120
K. Scholberg
- Function : Author
E. Scantamburlo
- Function : Author
F. Sato
- Function : Author
F. Sánchez
- Function : Author
K. Sakashita
- Function : Author
R. Sacco
- Function : Author
D. Ruterbories
- Function : Author
A. Rubbia
- Function : Author
S. Roth
- Function : Author
E. Rondio
- Function : Author
P. Rojas
- Function : Author
P. A. Rodrigues
- Function : Author
F. Retiere
- Function : Author
E. Reinherz-Aronis
- Function : Author
M. Reeves
- Function : Author
A. Redij
- Function : Author
M. A. M. Rayner
- Function : Author
M. Ravonel
- Function : Author
P. N. Ratoff
- Function : Author
E. Radicioni
- Function : Author
P. Przewlocki
- Function : Author
R. Poutissou
- Function : Author
J. M. Poutissou
- Function : Author
M. Posiadala
- Function : Author
B. Popov
- Function : Author
- PersonId : 738388
- IdHAL : boris-popov
- ORCID : 0000-0001-5416-9301
- IdRef : 178706841
E. Poplawska
- Function : Author
P. Plonski
- Function : Author
C. Pistillo
- Function : Author
E. S. Pinzon Guerra
- Function : Author
L. Pickard
- Function : Author
Y. Petrov
- Function : Author
J. D. Perkin
- Function : Author
O. Perevozchikov
- Function : Author
D. Payne
- Function : Author
V. Paolone
- Function : Author
V. Palladino
- Function : Author
Y. Oyama
- Function : Author
R. A. Owen
- Function : Author
S. M. Oser
- Function : Author
W. Oryszczak
- Function : Author
T. Okusawa
- Function : Author
K. Okumura
- Function : Author
- PersonId : 759341
- ORCID : 0000-0001-9033-0334
R. Ohta
- Function : Author
H. M. O'Keeffe
- Function : Author
Y. Nishimura
- Function : Author
K. Nishikawa
- Function : Author
M. Nirkko
- Function : Author
C. Nielsen
- Function : Author
D. Naples
- Function : Author
K. Nakayoshi
- Function : Author
T. Nakaya
- Function : Author
S. Nakayama
- Function : Author
K. Nakamura
- Function : Author
T. Nakai
- Function : Author
M. Nakahata
- Function : Author
T. Nakadaira
- Function : Author
T. Nagasaki
- Function : Author
J. Myslik
- Function : Author
S. Murphy
- Function : Author
M. Murdoch
- Function : Author
A. Murakami
- Function : Author
Th. A. Mueller
- Function : Author
- PersonId : 739936
- IdHAL : thomasalexandremueller
- ORCID : 0000-0003-2743-4741
- IdRef : 25311943X
S. Moriyama
- Function : Author
L. Monfregola
- Function : Author
M. Miura
- Function : Author
A. Missert
- Function : Author
S. Mine
- Function : Author
O. Mineev
- Function : Author
A. Minamino
- Function : Author
C. A. Miller
- Function : Author
P. Mijakowski
- Function : Author
M. Mezzetto
- Function : Author
C. Metelko
- Function : Author
C. Mcgrew
- Function : Author
K. S. Mcfarland
- Function : Author
N. Mccauley
- Function : Author
M. Mccarthy
- Function : Author
E. Mazzucato
- Function : Author
K. Mavrokoridis
- Function : Author
V. Matveev
- Function : Author
E. L. Mathie
- Function : Author
J. Marzec
- Function : Author
T. Maruyama
- Function : Author
J. F. Martin
- Function : Author
A. D. Marino
- Function : Author
S. Manly
- Function : Author
M. Malek
- Function : Author
- PersonId : 837192
K. Mahn
- Function : Author
L. Magaletti
- Function : Author
M. Macaire
- Function : Author
L. Ludovici
- Function : Author
A. Longhin
- Function : Author
R. P. Litchfield
- Function : Author
C. Lister
- Function : Author
T. Lindner
- Function : Author
K. P. Lee
- Function : Author
M. Lazos
- Function : Author
M. Lawe
- Function : Author
M. Laveder
- Function : Author
I. Lamont
- Function : Author
K. Laihem
- Function : Author
J. Lagoda
- Function : Author
T. Kutter
- Function : Author
R. Kurjata
- Function : Author
S. Kumaratunga
- Function : Author
Y. Kudenko
- Function : Author
H. Kubo
- Function : Author
- PersonId : 759142
- ORCID : 0000-0001-9159-9853
W. Kropp
- Function : Author
I. Kreslo
- Function : Author
Y. Koshio
- Function : Author
K. Koseki
- Function : Author
A. Korzenev
- Function : Author
L. L. Kormos
- Function : Author
A. Konaka
- Function : Author
A. Kolaceke
- Function : Author
L. Koch
- Function : Author
T. Kobayashi
- Function : Author
P. Kitching
- Function : Author
J. Kisiel
- Function : Author
J. Kim
- Function : Author
A. Kilinski
- Function : Author
T. Kikawa
- Function : Author
D. Kielczewska
- Function : Author
A. Khotjantsev
- Function : Author
M. Khabibullin
- Function : Author
E. Kearns
- Function : Author
I. Karpikov
- Function : Author
D. Karlen
- Function : Author
Y. Kanazawa
- Function : Author
J. Kameda
- Function : Author
H. Kakuno
- Function : Author
T. Kajita
- Function : Author
A. C. Kaboth
- Function : Author
M. Kabirnezhad
- Function : Author
C. K. Jung
- Function : Author
P. Jonsson
- Function : Author
J. H. Jo
- Function : Author
R. A. Johnson
- Function : Author
B. Jamieson
- Function : Author
A. Jacob
- Function : Author
- PersonId : 770193
- ORCID : 0000-0002-5114-6697
A. Izmaylov
- Function : Author
K. Iyogi
- Function : Author
E. Iwai
- Function : Author
S. J. Ives
- Function : Author
T. Ishii
- Function : Author
T. Ishida
- Function : Author
T. J. Irvine
- Function : Author
J. Insler
- Function : Author
J. Imber
- Function : Author
M. Ikeda
- Function : Author
M. Ieva
- Function : Author
K. Ieki
- Function : Author
A. K. Ichikawa
- Function : Author
K. Huang
- Function : Author
S. Horikawa
- Function : Author
J. Holeczek
- Function : Author
S. Hirota
- Function : Author
T. Hiraki
- Function : Author
A. Himmel
- Function : Author
A. Hillairet
- Function : Author
J. Hignight
- Function : Author
M. Hierholzer
- Function : Author
R. L. Helmer
- Function : Author
C. Hearty
- Function : Author
Y. Hayato
- Function : Author
N. C. Hastings
- Function : Author
T. Hasegawa
- Function : Author
M. Hartz
- Function : Author
T. Hara
- Function : Author
D. Hansen
- Function : Author
P. Hamilton
- Function : Author
M. D. Haigh
- Function : Author
A. Haesler
- Function : Author
D. R. Hadley
- Function : Author
D. Gudin
- Function : Author
N. Grant
- Function : Author
J. J. Gomez-Cadenas
- Function : Author
T. Golan
- Function : Author
D. Goeldi
- Function : Author
K. Gilje
- Function : Author
C. Giganti
- Function : Author
- PersonId : 741367
- IdHAL : giganti-claudio
- ORCID : 0000-0002-9543-2345
- IdRef : 168048493
S. Giffin
- Function : Author
V. Galymov
- Function : Author
A. P. Furmanski
- Function : Author
Y. Fukuda
- Function : Author
Y. Fujii
- Function : Author
M. Friend
- Function : Author
L. Floetotto
- Function : Author
A. J. Finch
- Function : Author
L. Escudero
- Function : Author
A. Ereditato
- Function : Author
S. Emery
- Function : Author
M. Dziewiecki
- Function : Author
S. Dytman
- Function : Author
Frédéric Dufour
- Function : Author
- PersonId : 172453
- IdHAL : frederic-dufour
- ORCID : 0000-0002-2086-4530
- IdRef : 070418217
K. Duffy
- Function : Author
T. Duboyski
- Function : Author
S. Di Luise
- Function : Author
F. Di Lodovico
- Function : Author
C. Densham
- Function : Author
S. R. Dennis
- Function : Author
T. Dealtry
- Function : Author
G. de Rosa
- Function : Author
P. de Perio
- Function : Author
S. Davis
- Function : Author
- PersonId : 177907
- IdHAL : isaac-davis
- ORCID : 0000-0002-8254-4735
R. Das
- Function : Author
I. Danko
- Function : Author
A. Dabrowska
- Function : Author
L. Cremonesi
- Function : Author
K. Connolly
- Function : Author
G. Collazuol
- Function : Author
S. J. Coleman
- Function : Author
J. Coleman
- Function : Author
A. Clifton
- Function : Author
G. Christodoulou
- Function : Author
D. Cherdack
- Function : Author
A. Cervera
- Function : Author
M. G. Catanesi
- Function : Author
R. Castillo
- Function : Author
S. L. Cartwright
- Function : Author
J. Caravaca Rodríguez
- Function : Author
R. G. Calland
- Function : Author
N. Buchanan
- Function : Author
C. Bronner
- Function : Author
A. Bravar
- Function : Author
D. Brailsford
- Function : Author
S. B. Boyd
- Function : Author
S. Bordoni
- Function : Author
C. Bojechko
- Function : Author
F. D. M. Blaszczyk
- Function : Author
S. Bhadra
- Function : Author
I. Bertram
- Function : Author
S. Berkman
- Function : Author
B. E. Berger
- Function : Author
V. Berardi
- Function : Author
S. W. Bentham
- Function : Author
F. Bay
- Function : Author
M. Batkiewicz
- Function : Author
M. Bass
- Function : Author
G. Barr
- Function : Author
G. J. Barker
- Function : Author
M. Barbi
- Function : Author
S. Assylbekov
- Function : Author
T. Ariga
- Function : Author
A. Ariga
- Function : Author
S. Aoki
- Function : Author
- PersonId : 755297
- ORCID : 0000-0001-6727-125X
C. Andreopoulos
- Function : Author
H. Aihara
- Function : Author
J. Adam
- Function : Author
- PersonId : 9493
- IdHAL : jean-luc-adam
- ORCID : 0000-0002-1242-6776
- IdRef : 050643592
K. Abe
- Function : Author
Abstract
The T2K experiment has reported the first observation of the appearance of electron neutrinos in a muon neutrino beam. The main and irreducible background to the appearance signal comes from the presence in the neutrino beam of a small intrinsic component of electron neutrinos originating from muon and kaon decays. In T2K, this component is expected to represent 1.2% of the total neutrino flux. A measurement of this component using the near detector (ND280), located 280 m from the target, is presented. The charged current interactions of electron neutrinos are selected by combining the particle identification capabilities of both the time projection chambers and electromagnetic calorimeters of ND280. The measured ratio between the observed electron neutrino beam component and the prediction is 1.01+-0.10 providing a direct confirmation of the neutrino fluxes and neutrino cross section modeling used for T2K neutrino oscillation analyses. Electron neutrinos coming from muons and kaons decay are also separately measured, resulting in a ratio with respect to the prediction of 0.68+-0.30 and 1.10+-0.14, respectively.
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