Search for neutral-current induced single photon production at the ND280 near detector in T2K
All rights reserved. Neutrino neutral-current (NC) induced single photon production is a subleading 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 oscill...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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IOP Publishing
2019
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| _version_ | 1826307303448510464 |
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| author | Abe, K Akutsu, R Ali, A Andreopoulos, C Anthony, L Antonova, M Aoki, S Ariga, A Ashida, Y Awataguchi, Y Azuma, Y Ban, S Barbi, M Barker, GJ Barr, G Barry, C Batkiewicz-Kwasniak, M Bench, F Berardi, V Berkman, S Berner, RM Berns, L Bhadra, S Bienstock, S Blondel, A |
| author_facet | Abe, K Akutsu, R Ali, A Andreopoulos, C Anthony, L Antonova, M Aoki, S Ariga, A Ashida, Y Awataguchi, Y Azuma, Y Ban, S Barbi, M Barker, GJ Barr, G Barry, C Batkiewicz-Kwasniak, M Bench, F Berardi, V Berkman, S Berner, RM Berns, L Bhadra, S Bienstock, S Blondel, A |
| author_sort | Abe, K |
| collection | OXFORD |
| description | All rights reserved. Neutrino neutral-current (NC) induced single photon production is a subleading 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 finegrained 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 1020 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 10-38 cm2 (90% C.L.) per nucleon, using the J-PARC off-axis neutrino beam with an average energy of .En. ~ 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. |
| first_indexed | 2024-03-07T07:01:07Z |
| format | Journal article |
| id | oxford-uuid:12aa6b0a-d06a-4c12-8fb9-1be2ac5a5e69 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T07:01:07Z |
| publishDate | 2019 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:12aa6b0a-d06a-4c12-8fb9-1be2ac5a5e692022-03-29T17:16:00ZSearch for neutral-current induced single photon production at the ND280 near detector in T2KJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:12aa6b0a-d06a-4c12-8fb9-1be2ac5a5e69Symplectic Elements at OxfordIOP Publishing2019Abe, KAkutsu, RAli, AAndreopoulos, CAnthony, LAntonova, MAoki, SAriga, AAshida, YAwataguchi, YAzuma, YBan, SBarbi, MBarker, GJBarr, GBarry, CBatkiewicz-Kwasniak, MBench, FBerardi, VBerkman, SBerner, RMBerns, LBhadra, SBienstock, SBlondel, AAll rights reserved. Neutrino neutral-current (NC) induced single photon production is a subleading 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 finegrained 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 1020 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 10-38 cm2 (90% C.L.) per nucleon, using the J-PARC off-axis neutrino beam with an average energy of .En. ~ 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. |
| spellingShingle | Abe, K Akutsu, R Ali, A Andreopoulos, C Anthony, L Antonova, M Aoki, S Ariga, A Ashida, Y Awataguchi, Y Azuma, Y Ban, S Barbi, M Barker, GJ Barr, G Barry, C Batkiewicz-Kwasniak, M Bench, F Berardi, V Berkman, S Berner, RM Berns, L Bhadra, S Bienstock, S Blondel, A Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title | Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title_full | Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title_fullStr | Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title_full_unstemmed | Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title_short | Search for neutral-current induced single photon production at the ND280 near detector in T2K |
| title_sort | search for neutral current induced single photon production at the nd280 near detector in t2k |
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