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

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dc.contributor.authorAbe, K.
dc.contributor.authorAkutsu, R.
dc.contributor.authorAli, A.
dc.contributor.authorAndreopoulos, C.
dc.contributor.authorKudenko, Y.
dc.contributor.authorКуденко, Юрий Григорьевич
dc.date.accessioned2024-11-21T16:47:19Z
dc.date.available2024-11-21T16:47:19Z
dc.date.issued2019
dc.description.abstract© 2019 Institute of Physics Publishing. 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.
dc.identifier.citationSearch for neutral-current induced single photon production at the ND280 near detector in T2K / Abe, K. [et al.] // Journal of Physics G: Nuclear and Particle Physics. - 2019. - 46. - № 8. - 10.1088/1361-6471/ab227d
dc.identifier.doi10.1088/1361-6471/ab227d
dc.identifier.urihttps://www.doi.org/10.1088/1361-6471/ab227d
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85070804920&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000518888100001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/19217
dc.relation.ispartofJournal of Physics G: Nuclear and Particle Physics
dc.titleSearch for neutral-current induced single photon production at the ND280 near detector in T2K
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue8
oaire.citation.volume46
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