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Search for neutral-current induced single photon production at the ND280 near detector in T2K

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Search for neutral-current induced single photon production at the ND280 near detector in T2K. / T2K Collaboration ; Brailsford, D.; Dealtry, T. et al.

In: Journal of Physics G: Nuclear and Particle Physics, Vol. 46, No. 8, 08LT01, 01.08.2019.

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T2K Collaboration, Brailsford D, Dealtry T, Finch AJ, Knox A, Kormos LL et al. Search for neutral-current induced single photon production at the ND280 near detector in T2K. Journal of Physics G: Nuclear and Particle Physics. 2019 Aug 1;46(8):08LT01. doi: 10.1088/1361-6471/ab227d

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T2K Collaboration ; Brailsford, D. ; Dealtry, T. et al. / Search for neutral-current induced single photon production at the ND280 near detector in T2K. In: Journal of Physics G: Nuclear and Particle Physics. 2019 ; Vol. 46, No. 8.

Bibtex

@article{fab739066a8c4996a8b16bbac25471a0,
title = "Search for neutral-current induced single photon production at the ND280 near detector in T2K",
abstract = "Neutrino neutral-current (NC) induced single photon production is a sub-leading order process for accelerator-based neutrino beam experiments including T2K. It is, however, an important process to understand because it is a background for electron (anti)neutrino appearance oscillation experiments. Here, we performed the first search of this process below 1 GeV using the fine-grained detector at the T2K ND280 off-axis near detector. By reconstructing single photon kinematics from electron-positron pairs, we achieved 95% pure gamma ray sample from 5.738 x 10(20) protons-on-targets neutrino mode data. We do not find positive evidence of NC induced single photon production in this sample. We set the model-dependent upper limit on the cross-section for this process, at 0.114 x 10(-38) cm(2) (90% C.L.) per nucleon, using the J-PARC off-axis neutrino beam with an average energy of <E-v > similar to 0.6 GeV. This is the first limit on this process below 1 GeV which is important for current and future oscillation experiments looking for electron neutrino appearance oscillation signals.",
keywords = "hep-ex",
author = "{T2K Collaboration} and K. Abe and R. Akutsu and C. Andreopoulos and M. Antonova and S. Aoki and A. Ariga and Y. Ashida and Y. Awataguchi and Y. Azuma and S. Ban and M. Barbi and Barker, {G. J.} and G. Barr and C. Barry and M. Batkiewicz-Kwasniak and F. Bench and V. Berardi and S. Berkman and Berner, {R. M.} and L. Berns and S. Bhadra and S. Bienstock and A. Blondel and S. Bolognesi and B. Bourguille and D. Brailsford and A. Bravar and C. Bronner and Avanzini, {M. Buizza} and J. Calcutt and T. Campbell and S. Cao and Catanesi, {M. G.} and A. Cervera and A. Chappell and C. Checchia and D. Cherdack and N. Chikuma and G. Christodoulou and J. Coleman and G. Collazuol and T. Dealtry and Finch, {A. J.} and A. Knox and Kormos, {L. L.} and M. Lawe and J. Nowak and O'Keeffe, {H. M.} and Ratoff, {P. N.} and D. Shaw",
note = "5 figures, 1 table",
year = "2019",
month = aug,
day = "1",
doi = "10.1088/1361-6471/ab227d",
language = "English",
volume = "46",
journal = "Journal of Physics G: Nuclear and Particle Physics",
issn = "0954-3899",
publisher = "IOP Publishing Ltd.",
number = "8",

}

RIS

TY - JOUR

T1 - Search for neutral-current induced single photon production at the ND280 near detector in T2K

AU - T2K Collaboration

AU - Abe, K.

AU - Akutsu, R.

AU - Andreopoulos, C.

AU - Antonova, M.

AU - Aoki, S.

AU - Ariga, A.

AU - Ashida, Y.

AU - Awataguchi, Y.

AU - Azuma, Y.

AU - Ban, S.

AU - Barbi, M.

AU - Barker, G. J.

AU - Barr, G.

AU - Barry, C.

AU - Batkiewicz-Kwasniak, M.

AU - Bench, F.

AU - Berardi, V.

AU - Berkman, S.

AU - Berner, R. M.

AU - Berns, L.

AU - Bhadra, S.

AU - Bienstock, S.

AU - Blondel, A.

AU - Bolognesi, S.

AU - Bourguille, B.

AU - Brailsford, D.

AU - Bravar, A.

AU - Bronner, C.

AU - Avanzini, M. Buizza

AU - Calcutt, J.

AU - Campbell, T.

AU - Cao, S.

AU - Catanesi, M. G.

AU - Cervera, A.

AU - Chappell, A.

AU - Checchia, C.

AU - Cherdack, D.

AU - Chikuma, N.

AU - Christodoulou, G.

AU - Coleman, J.

AU - Collazuol, G.

AU - Dealtry, T.

AU - Finch, A. J.

AU - Knox, A.

AU - Kormos, L. L.

AU - Lawe, M.

AU - Nowak, J.

AU - O'Keeffe, H. M.

AU - Ratoff, P. N.

AU - Shaw, D.

N1 - 5 figures, 1 table

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Neutrino neutral-current (NC) induced single photon production is a sub-leading order process for accelerator-based neutrino beam experiments including T2K. It is, however, an important process to understand because it is a background for electron (anti)neutrino appearance oscillation experiments. Here, we performed the first search of this process below 1 GeV using the fine-grained detector at the T2K ND280 off-axis near detector. By reconstructing single photon kinematics from electron-positron pairs, we achieved 95% pure gamma ray sample from 5.738 x 10(20) protons-on-targets neutrino mode data. We do not find positive evidence of NC induced single photon production in this sample. We set the model-dependent upper limit on the cross-section for this process, at 0.114 x 10(-38) cm(2) (90% C.L.) per nucleon, using the J-PARC off-axis neutrino beam with an average energy of <E-v > similar to 0.6 GeV. This is the first limit on this process below 1 GeV which is important for current and future oscillation experiments looking for electron neutrino appearance oscillation signals.

AB - Neutrino neutral-current (NC) induced single photon production is a sub-leading order process for accelerator-based neutrino beam experiments including T2K. It is, however, an important process to understand because it is a background for electron (anti)neutrino appearance oscillation experiments. Here, we performed the first search of this process below 1 GeV using the fine-grained detector at the T2K ND280 off-axis near detector. By reconstructing single photon kinematics from electron-positron pairs, we achieved 95% pure gamma ray sample from 5.738 x 10(20) protons-on-targets neutrino mode data. We do not find positive evidence of NC induced single photon production in this sample. We set the model-dependent upper limit on the cross-section for this process, at 0.114 x 10(-38) cm(2) (90% C.L.) per nucleon, using the J-PARC off-axis neutrino beam with an average energy of <E-v > similar to 0.6 GeV. This is the first limit on this process below 1 GeV which is important for current and future oscillation experiments looking for electron neutrino appearance oscillation signals.

KW - hep-ex

U2 - 10.1088/1361-6471/ab227d

DO - 10.1088/1361-6471/ab227d

M3 - Journal article

VL - 46

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

SN - 0954-3899

IS - 8

M1 - 08LT01

ER -