Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"Sterile Neutrinos"”.
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Oscillations and Sterile Neutrinos
… on simulations of oscillation with one light sterile neutrino. These analyses study the effect of adding one light (∼1 eV) sterile neutrino to the current 3-flavour neutrino scenario and the theoretical change in predictive power of certain experiments in this new 4-flavour regime. The main …
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Sterile neutrinos in cold climates
… of new physics such as the existence of sterile neutrinos. This three-part thesis presents research directed towards understanding these anomalies and searching for sterile neutrino oscillations. Part I contains a theoretical discussion of neutrino coherence properties. The …
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Searches for new physics at MiniBooNE : sterile neutrinos and mixing freedom
… attributed to the existence of a light, mostly-sterile neutrino, containing small admixtures of weak neutrino eigenstates. In addition to a search for Vu --> Ve oscillations, MiniBooNE has also performed a search for Vu -->Ve oscillations, which provides a test of the LSND two-neutrino …
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Through Iron & Ice: Searching for Sterile Neutrinos at the IceCube Neutrino Observatory
… the rapid progression in our understanding of neutrinos over the last half century, much is left unknown about their properties. This leaves neutrinos as the most promising portal for Beyond Standard Model (BSM) physics, and neutrinos have already provided fruitful surprises. A number of …
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The Development of the SNO+ Experiment: Scintillator Timing, Pulse Shape Discrimination, and Sterile Neutrinos
… beta decay, and will measure low energy solar neutrinos. This thesis will describe three main development activities for the SNO+ experiment: the measurement of the timing parameters for the liquid scintillator cocktail, using those timing parameters to estimate the ability of SNO+ to …
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X-ray searches for decaying sterile neutrinos with the Micro-X and XQC sounding rockets
… candidate. One proposed particle is the sterile neutrino, a counterpart of the observed active neutrino with right-handed chirality. A recent detection of an unidentified X-ray emission line has been suggested as a possible signal of sterile neutrino decay, but requires more observations …
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Light, Unstable Sterile Neutrinos: Phenomenology, a Search in the IceCube Experiment, and a Global Picture
… of a fourth, hypothetical neutrino: the sterile neutrino. Global fits to a sterile neutrino model find a strong preference for such a model over the massive neutrino Standard Model. However, the fit results suffer from inconsistencies between datasets, referred to as tension. This …
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Neutron backgrounds in the Ricochet experiment
… experiment is to determine the existence of sterile neutrinos via coherent neutrino-nucleus scattering. Coherent neutrino-nucleus scattering is an ideal detection method because it is a neutral current process. All active neutrino flavors will therefore be detected uniformly (no non-active, …
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Study on measuring Neutrino interactions with the ICARUS detector and addressing its cosmic ray background.
… research environment where to search for sterile neutrinos at the electronvolt mass scale. The program makes use of three liquid argon time projection chambers sequentially positioned along the Booster Neutrino Beam, in this setup ICARUS serves as the far detector. The primary goal of the …
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Using Cutting Edge Software and Techniques to Model and Measure Experimental Neutrino Data
Neutrinos are fascinating particles whose behaviour could have cosmological implications. For example, by studying them we could understand the imbalance of matter and antimatter in the Universe, one of the crucial puzzles in astrophysics. In the field of neutrino physics, there are many open …
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A NEW MEASUREMENT OF THE NEUTRON MULTIPLICITY EMITTED IN 252Cf SPONTANEOUS FISSION
… short baseline oscillations of electron antineutrinos in search of eV-scale sterile neutrinos and precisely measure the 235U reactor antineutrino spectrum from the High Flux Isotope Reactor (HFIR) at Oak Ridge national Laboratory (ORNL). The PROSPECT antineutrino detector (AD) provided …
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Development and calibration of NuLat, A new type of neutrino detector
… like the possibility of the existence of light sterile neutrinos and unexpected 5 MeV bump were raised during the measurement. The Neutrino Lattice Experiment (NuLat) is a detector based on the Raghavan Optical Lattice (ROL). It should be able to offer a compact design of an effective detector …
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Observation of Reactor Antineutrinos with the CHANDLER Detector
… anomalies hint at the possible existence of a sterile neutrino. Several experiments have been searching for the sterile neutrino, but none can claim either its discovery or fully rule it out. To test the sterile neutrino hypothesis, we search for short baseline oscillations using antineutrinos …
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Sterile Neutrino Searches
… part of the thesis we explore the sensitivity to sterile neutrinos by using a novel kaon tagging technology: ENUBET, the proposed experiment could decisively test indications from the experiments Neutrino-4 and IceCube. In the second part of the thesis we discuss the current status of sterile …
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Sterile neutrino searches in MiniBooNE and MicroBooNE
… possible need for the addition of one or more sterile (non-interacting) neutrino states into the existing neutrino oscillation framework. This thesis first presents the motivation for sterile neutrino models by describing the short-baseline anomalies that can be addressed with them. This is …
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Sterile neutrino searches at the Icecube Neutrino Observatory
… is capable of performing a unique search for sterile neutrinos through the exploitation of a matter enhanced resonant neutrino oscillation phenomena. As atmospheric muon neutrinos pass the dense material within the Earth, neutral current elastic forward scattering is predicted to induce a …
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Precise measurement of mixing parameters and sterile neutrino search at Daya Bay
Neutrino oscillation with three active neutrinos has been well established by experiments. However, θ_13 was the least known mixing angle before the Daya Bay reactor neutrino experiment. The Daya Bay experiment uses relative measurement with eight identically-designed antineutrino detectors (ADs) …
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Solar and Sterile Neutrino Physics with the Raghavan Optical Lattice
… mass, the existence of additional types of neutrinos, CP violation and the matter--antimatter asymmetry, the amount of metals in the Sun's core, and the existence of non-nuclear energy sources in the Sun. This dissertation concerns the the use of a novel detector technology, the Raghavan …
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Proton Inelastic Cross-section Measurement on Argon with the ProtoDUNE-SP Detector and an Investigation of MicroBooNE Low Energy Excess
Neutrinos are elementary particles in the Standard Model and studies of their characteristics as well as properties are of great importance to particle physics together with other disciplines. Precise measurements of neutrino oscillations can reveal the value of the 𝐶𝑃 violation phase in the lepton …
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Measurement of the muon-neutrino charged-current single charged-pion cross-section on argon with the MicroBooNE detector
… mass states and the possible existence of sterile neutrinos. At present, the ability to answer these questions is limited by uncertainties on neutrino-nucleus interaction cross-section models. Consequently, it is key that these uncertainties are constrained by precise cross-section …
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