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Full-Text Articles in Physics
Improving Sensitivities In 0𝒗ββ Decay Searches By Utilizing Pen As A Structural Scintillating Material, Brennan Theresa Hackett
Improving Sensitivities In 0𝒗ββ Decay Searches By Utilizing Pen As A Structural Scintillating Material, Brennan Theresa Hackett
Doctoral Dissertations
Neutrinoless double beta decay, 0nbb is currently the only experimental test to unambiguously determine the majorana nature of the neutrino. There is a large international effort to measure 0nbb decay, with several detector technologies being pursued. This dissertation will consider the LEGEND experiment (Large Enriched Germanium Experiment for Neutrinoless bb Decay), an international effort to measure 0nbb decay with 76Ge as both the target isotope and the detecting material.
LEGEND has a 200 kg stage and a 1000 kg stage, each requiring extremely low levels of background radiation at Qbb (E = 2.039 MeV). These ultra-low background levels …
The Upgraded Measurement Of The Neutron Lifetime Using The In-Beam Method, Jimmy P. Caylor
The Upgraded Measurement Of The Neutron Lifetime Using The In-Beam Method, Jimmy P. Caylor
Doctoral Dissertations
Precision measurements of neutron beta decay can provide answers to some of the most fundamental questions in particle physics, astrophysics and cosmology. Neutron beta decay is the simplest semi-leptonic decay; therefore, it provides a clean test of the charged current sector of the Standard Model (SM). A precise measurement of the neutron lifetime and λ, the ratio of axial vector and vector coupling constants of the weak interaction, allows for a determination of the Cabibbo-Kobayashi-Moskawa (CKM) matrix element Vud that is free from nuclear structure effects. The SM predicts that the CKM matrix is unitary; therefore, the measurement of …