{"id":{"repo_id":"lancaster","oai_identifier":"oai:eprints.lancs.ac.uk:125996"},"canonical_url":"https://search.dev.ndltd.org/etd/lancaster/oai:eprints.lancs.ac.uk:125996","repository":{"repo_id":"lancaster","name":"Lancaster University","base_url":"https://eprints.lancs.ac.uk/cgi/oai2"},"display":{"title":"A study of neutral pion production from charged-current muon-neutrino interactions in the T2K near detector (Tracker + ECal)","abstract":"Tokai to Kamioka (T2K) is a long-baseline neutrino oscillation experiment, whose beam is produced at the J-PARC accelerator complex in Tokai, Japan. This beam is sampled by a near detector, ND280, 280 m from the beam origin and a far detector, Super-Kamiokande, 295 km from the beam origin. The primary systematic uncertainties dominating the oscillation analyses for T2K are related to the neutrino beam flux, cross-section and final state interaction uncertainties. Within this thesis, a first attempt is made to develop an analysis in the ND280 highland2 analysis framework which selects muon-neutrino induced charged-current events containing at least one Pi0. In order to investigate potential differences in the conversion channels of the Pi0 decays, exclusively those which finally convert in the Tracker + ECal regions of the ND280 are considered. The analysis presented selects muon-neutrino CCPi0 inclusive events in the ND280, reconstructed in the Tracker + ECal regions, with an efficiency of 3.2 +/- 0.06% and a purity of 71.7 +/- 0.71%. The analysis detailed within was carried out using data taken from the T2K run periods 2 - 4, which corresponds to 55.19 X 10^19 protons on target (P.O.T). This leads to a prediction of 262.1 +/- 32.8 (Stat. + Det. + Flux + Model Error) events being selected for the NEUT Monte-Carlo (MC), and a total of 316 +/- 17.8 events being selected within the real data. These figures imply general agreement between Monte Carlo and real data. A number of suggestions for future work are described. It is expected that the implementation of these will allow a total CC1Pi0 inclusive final state cross-section measurement and also allow this work to be used in data samples used to constrain future T2K oscillation analyses. Secondarily, a portion of this thesis describes work completed by the author which focused on the implementation of a software solution to a hardware problem, which arised during construction of the ECal modules which form part of the ND280.","abstract_html":"Tokai to Kamioka (T2K) is a long-baseline neutrino oscillation experiment, whose beam is produced at the J-PARC accelerator complex in Tokai, Japan. This beam is sampled by a near detector, ND280, 280 m from the beam origin and a far detector, Super-Kamiokande, 295 km from the beam origin. The primary systematic uncertainties dominating the oscillation analyses for T2K are related to the neutrino beam flux, cross-section and final state interaction uncertainties. Within this thesis, a first attempt is made to develop an analysis in the ND280 highland2 analysis framework which selects muon-neutrino induced charged-current events containing at least one Pi0. In order to investigate potential differences in the conversion channels of the Pi0 decays, exclusively those which finally convert in the Tracker + ECal regions of the ND280 are considered. The analysis presented selects muon-neutrino CCPi0 inclusive events in the ND280, reconstructed in the Tracker + ECal regions, with an efficiency of 3.2 +/- 0.06% and a purity of 71.7 +/- 0.71%. The analysis detailed within was carried out using data taken from the T2K run periods 2 - 4, which corresponds to 55.19 X 10^19 protons on target (P.O.T). This leads to a prediction of 262.1 +/- 32.8 (Stat. + Det. + Flux + Model Error) events being selected for the NEUT Monte-Carlo (MC), and a total of 316 +/- 17.8 events being selected within the real data. These figures imply general agreement between Monte Carlo and real data. A number of suggestions for future work are described. It is expected that the implementation of these will allow a total CC1Pi0 inclusive final state cross-section measurement and also allow this work to be used in data samples used to constrain future T2K oscillation analyses. Secondarily, a portion of this thesis describes work completed by the author which focused on the implementation of a software solution to a hardware problem, which arised during construction of the ECal modules which form part of the ND280.","abstract_has_math":false,"creators":["Shaw, Dave","O'Keeffe, Helen"],"institution":"Lancaster University","degree_name":"Ph.D.","degree_level":"doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018","date_published":"2018","updated_at":"2026-07-24T02:48:43Z","subjects":[],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Shaw, Dave","O'Keeffe, Helen"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018"]},{"key":"dc:date.issued","label":"Date","values":["2018"]},{"key":"dc:publisher.commercial","label":"Dc Publisher Commercial","values":["Lancaster University"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Physics"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["Lancaster University"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://eprints.lancs.ac.uk/id/eprint/125996/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["Ph.D."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://eprints.lancs.ac.uk/id/eprint/125996/1/2018ShawPhD.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Tokai to Kamioka (T2K) is a long-baseline neutrino oscillation experiment, whose beam is produced at the J-PARC accelerator complex in Tokai, Japan. This beam is sampled by a near detector, ND280, 280 m from the beam origin and a far detector, Super-Kamiokande, 295 km from the beam origin. The primary systematic uncertainties dominating the oscillation analyses for T2K are related to the neutrino beam flux, cross-section and final state interaction uncertainties. Within this thesis, a first attempt is made to develop an analysis in the ND280 highland2 analysis framework which selects muon-neutrino induced charged-current events containing at least one Pi0. In order to investigate potential differences in the conversion channels of the Pi0 decays, exclusively those which finally convert in the Tracker + ECal regions of the ND280 are considered. The analysis presented selects muon-neutrino CCPi0 inclusive events in the ND280, reconstructed in the Tracker + ECal regions, with an efficiency of 3.2 +/- 0.06% and a purity of 71.7 +/- 0.71%. The analysis detailed within was carried out using data taken from the T2K run periods 2 - 4, which corresponds to 55.19 X 10^19 protons on target (P.O.T). This leads to a prediction of 262.1 +/- 32.8 (Stat. + Det. + Flux + Model Error) events being selected for the NEUT Monte-Carlo (MC), and a total of 316 +/- 17.8 events being selected within the real data. These figures imply general agreement between Monte Carlo and real data. A number of suggestions for future work are described. It is expected that the implementation of these will allow a total CC1Pi0 inclusive final state cross-section measurement and also allow this work to be used in data samples used to constrain future T2K oscillation analyses. Secondarily, a portion of this thesis describes work completed by the author which focused on the implementation of a software solution to a hardware problem, which arised during construction of the ECal modules which form part of the ND280."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["A study of neutral pion production from charged-current muon-neutrino interactions in the T2K near detector (Tracker + ECal)"]}]}],"canonical_facts":{"dc:creator":["Shaw, Dave","O'Keeffe, Helen"],"dc:date":["2018"],"dc:date.issued":["2018"],"dc:description.abstract":["Tokai to Kamioka (T2K) is a long-baseline neutrino oscillation experiment, whose beam is produced at the J-PARC accelerator complex in Tokai, Japan. This beam is sampled by a near detector, ND280, 280 m from the beam origin and a far detector, Super-Kamiokande, 295 km from the beam origin. The primary systematic uncertainties dominating the oscillation analyses for T2K are related to the neutrino beam flux, cross-section and final state interaction uncertainties. Within this thesis, a first attempt is made to develop an analysis in the ND280 highland2 analysis framework which selects muon-neutrino induced charged-current events containing at least one Pi0. In order to investigate potential differences in the conversion channels of the Pi0 decays, exclusively those which finally convert in the Tracker + ECal regions of the ND280 are considered. The analysis presented selects muon-neutrino CCPi0 inclusive events in the ND280, reconstructed in the Tracker + ECal regions, with an efficiency of 3.2 +/- 0.06% and a purity of 71.7 +/- 0.71%. The analysis detailed within was carried out using data taken from the T2K run periods 2 - 4, which corresponds to 55.19 X 10^19 protons on target (P.O.T). This leads to a prediction of 262.1 +/- 32.8 (Stat. + Det. + Flux + Model Error) events being selected for the NEUT Monte-Carlo (MC), and a total of 316 +/- 17.8 events being selected within the real data. These figures imply general agreement between Monte Carlo and real data. A number of suggestions for future work are described. It is expected that the implementation of these will allow a total CC1Pi0 inclusive final state cross-section measurement and also allow this work to be used in data samples used to constrain future T2K oscillation analyses. Secondarily, a portion of this thesis describes work completed by the author which focused on the implementation of a software solution to a hardware problem, which arised during construction of the ECal modules which form part of the ND280."],"dc:format":["application/pdf"],"dc:identifier.uri":["https://eprints.lancs.ac.uk/id/eprint/125996/1/2018ShawPhD.pdf"],"dc:publisher.commercial":["Lancaster University"],"dc:publisher.department":["Physics"],"dc:publisher.institution":["Lancaster University"],"dc:relation.isreferencedby":["https://eprints.lancs.ac.uk/id/eprint/125996/"],"dc:title":["A study of neutral pion production from charged-current muon-neutrino interactions in the T2K near detector (Tracker + ECal)"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["doctoral"],"dc:type.qualificationname":["Ph.D."]},"updated_at":"2026-07-24T02:48:43Z"}