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 101 for “"Beta decay"”.
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Direct and Indirect Searches for Anomalous Beta Decay
… primarily on the concept of ``self--induce decay.'' This investigation stems from a series of recent reports that suggest that the decay rates of several isotopes may have been influenced by solar activity (perhaps by solar neutrinos). A mechanism in which (anti)neutrinos can influence the …
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Detection of electron polarization in beta decay by double electron scattering : (proof of the non-conservation of parity in beta decay)
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1960.
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Silicon detector testing for neutron beta decay experiment nab
… in the universe. The rate of neutron beta decay in the decay of free neutrons is sensitive to beyond the standard model physics where the types of interactions are constrained by the Lorentz invariance of bi-linear covariants. Precision measurements of decay correlation parameters can …
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Beta-decay studies of neutron-rich ¹¹Li and ³²Na
Includes bibliographical references (pages 135-139).
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Techniques for direct neutrino mass measurement utilizing tritium [beta]-decay
… of the shape of the endpoint of the tritium beta decay spectrum to determine the neutrino mass, which is a technique that relies only on basic kinematics and enjoys a long and distinguished history. Additionally, these experiments utilize classical electrodynamics in their analysis of the …
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Low energy photon mimic of the tritium beta decay energy spectrum
… has been proposed using photons to mimic the beta decay energy spectrum of tritium. This would allow simulation of the radiation properties of tritium, so that a surrogate photon source can be used for biophysics experiments. Through experimental and computational means, this work has explored …
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Electron Neutrino Angular Correlation in the Beta-Decay of Neon-19
Made available in DSpace on 2015-05-12T17:11:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0009106.PDF: 4627672 bytes, checksum: 0002d16b2665ce8ed8f1f2d21a672fbe (MD5) Previous issue date: 1954
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Double-Beta Decay of <super>150</super>Nd to Excited Final States
… experimental study of the two-neutrino double-beta (2νββ) decay of <super>150</super>Nd to various excited final states of <super>150</super>Sm was performed at Triangle Universities Nuclear Laboratory (TUNL). Such data provide important checks for theoretical models used to predict 0νββ decay …
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Analysis and simulations to obtain the weak magnetism term in ²²Na beta decay
The study of ²²Na beta decay offers an opportunity to test the Standard Model of Particle Physics via measurements of the β−γ angular correlation. A previous measurement of this correlation yielded a non-zero value, indicating the need for a higher-order matrix element to the decay, beyond the …
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Applications of Low Temperature Bolometers to Reactor Neutrinos and Neutrinoless Double Beta Decay
… Scattering (CEvNS) and Neutrinoless Double Beta Decay (0νββ). First, design, development, and feasibility studies of the Ricochet CEvNS experiment are presented. In addition, results are shown demonstrating that upcoming CEvNS experiments are a powerful tool to search for new physics, …
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Modeling beta decay spectra to analyze the sensitivity of a neutrino mass experiment
… neutrino mass by obtaining and analyzing [beta] spectra from tritium decay. Using an inferential model of the experiment's anticipated data, I evaluate its projected sensitivity to certain parameters of interest. I focus on the precision and accuracy with which Project 8 can expect to …
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An investigation into the phenomenological relation between solar activity and nuclear beta-decay rates
… experimental evidence for time-varying nuclear decay rates, in contrast to the widely-accepted view that nuclear decaying isotopes disintegrate at a constant rate unaffected by external conditions. We study several past cases of radioactive isotopes exhibiting annual periodicities in their decay …
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Optimization Studies for the COBRA Neutrinoless Double-Beta Decay Experiment and Results from a Prototype
… detectors to search for the neutrinoless double-beta decay of cadmium-116. While the experiment has produced globally competitive half-life limits with data from coplanar-grid CZT detectors, a future ton-scale iteration could set limits constraining the effective Majorana neutrino mass to less …
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Double-Beta Decay of 96Zr and Double-Electron Capture of 156Dy to Excited Final States
… searches for second-order weak nuclear decays to excited final states were conducted. Both experiments were carried out at the Kimballton Underground Research Facility to provide shielding from cosmic rays. The first search is for the two-neutrino double-beta decay of 96Zr to excited …
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Search for neutrinoless double-beta decay and 42Ar in enriched xenon using the EXO-200 dataset
Observation of neutrinoless double-beta decay (0νββ) would constitute discovery of a new class of particle (the Majorana neutrino), violate lepton number conservation, and provide a constraint on the neutrino mass scale. The Enriched Xenon Observatory experiment (EXO-200) operated an extremely …
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The Effect of The Coulomb Field on The Energy Spectrum of Electrons Emitted in Beta-Decay
Made available in DSpace on 2015-05-12T17:12:30Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6206195.PDF: 2808567 bytes, checksum: d85f2b9acdb0ef4cf586c5c2d8f5be64 (MD5) Previous issue date: 1962
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Search for neutrinoless double beta decay of ¹¹⁶Cd and ⁸²Se and calorimeter simulations for the SuperNEMO experiment
… to measure the half-life of two-neutrino double beta decay (2[nu][beta][beta]) to the ground states of ¹¹⁶Sn and ⁸²Kr and to place a lower limit on the neutrinoless double becay decay (0[nu][beta][beta]) to the same ground states. Under the single-states dominance hypothesis, the …
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