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An anomalous measurement of delta m31 squared from neutrino oscillations at the Daya Bay Reactor Neutrino Experiment

dc.contributor.advisorErnst, David
dc.contributor.authorBurroughs, Hunter
dc.description.abstractIn 2012, the collaboration overseeing the Daya Bay Reactor Neutrino Experiment announced results which determined the magnitude of the mixing angle \theta_{13} with unprecedented precision. However, no attempt was made in the collaboration’s publications to predict the value of the most relevant mass-squared difference to the observed oscillation, \delta m^2_{31}. This paper presents the results of an analysis which suggests that the Daya Bay data prefers a value of \delta m^2_{31} which is far greater than its presently recognized value. Specifically, it is found that Daya Bay predicts \delta m^2_{31} = 3.53_(-1.07)^(+.74) × 10^(-3) eV^2, where the cited uncertainties correspond to the 99% confidence bounds. This measurement excludes the most precise current measurement of \delta m^2_{31}, the MINOS result, at a 99% confidence level and is in turn excluded by the MINOS data at a 10 \sigma level. The possibility that sterile neutrino effects are the cause of this anomalous result is considered and used to suggest further work.en_US
dc.publisherVanderbilt University. Department of Physics and Astronomyen_US
dc.subjectneutrino mixingen_US
dc.subjectneutrino oscillationsen_US
dc.subjectoscillation parametersen_US
dc.subjectDaya Bayen_US
dc.subjectsterile neutrinoen_US
dc.subjecttheta 13en_US
dc.subjectneutrino mass differenceen_US
dc.subject.lcshNeutrinos -- Massen_US
dc.subject.lcshNuclear reactorsen_US
dc.subject.lcshDaya Wan he dian zhan (China)en_US
dc.titleAn anomalous measurement of delta m31 squared from neutrino oscillations at the Daya Bay Reactor Neutrino Experimenten_US
dc.description.collegeCollege of Arts and Scienceen_US
dc.description.departmentDepartment of Physics and Astronomyen_US

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