nEXO is a next-generation search for the neutrinoless double beta decay (0𝜈𝛽𝛽) of 136Xe using a 5-tonne, monolithic liquid xenon time projection chamber (TPC). To optimize the event reconstruction and energy resolution of the TPC, calibrations are needed to map the position- and time- dependent detector response. We will describe recent work studying the feasibility of neutron-activated 127Xe...
In 2002 Ward presented [1] a simple extension of the SM, an isospin symmetry breaking (ISB) model of spin-dependent electroweak (EW), strong and gravitational radiation gauge fields mixing with corresponding complimentary fields. The extended phenomenological model has been improved by further development identifying the complimentary fields as Yang-Mills (Y-M) fields and the use of...
The LEGEND experimental program will operate in two phases to search for neutrinoless double-beta decay ($0\nu\beta\beta$). The first (second) stage will employ 200 (1000) kg of $^{76}$Ge semiconductor detectors to achieve a half-life sensitivity of 10$^{27}$ (10$^{28}$) years. In this study, we present a data-driven approach to remove electronic noise, cross-talk, and non-physical events...
In experiments that look for dark matter particles or coherent neutrino nucleus scattering, we often measure the charge signal produced from the ionization of the nuclear recoil events. Nuclear recoils generate less ionization than electron recoils of the same energies, and the relative ratio, defined as the ionization yield, is crucial to calibrating the detectors. We performed a measurement...
The ${\rm M{\scriptsize AJORANA}~D{\scriptsize EMONSTRATOR}}$ is a neutrinoless double beta decay ($0\nu\beta\beta$) experiment consisting of ~30 kg of germanium detectors enriched to 88% in $^{76}\rm{Ge}$ and ~14 kg of natural germanium detectors. The detectors are divided between two cryostats and surrounded by a graded passive shield. The ${\rm{D\scriptsize EMONSTRATOR}}$ achieved one of...
The Large Enriched Germanium Experiment for Neutrinoless double-beta Decay (LEGEND) collaboration plans to search for neutrinoless double-beta ($0\nu\beta\beta$) decay in ${}^{76}$Ge using modular arrays of germanium detectors enriched in the isotope. $0\nu\beta\beta$ candidate events happen at a single site in the germanium detector. Pulse shape simulations to model the movement of charge...
Neutrinoless Double Beta Decay(0νββ) is one of the major research interests in neutrino physics. The discovery of 0νββ would answer persistent puzzles in the standard model. In the search of 0νββ, The Majorana Demonstrator experiment retains the best energy resolution and one of the lowest backgrounds at the region of interest. Data is collected from 63.9kg of enriched and natural Germanium-76...
We challenge the traditional wisdom that cosmological (big bang relic) neutrinos can only be hot dark matter. We provide a critical review of the concepts, derivations and arguments in foundational papers, books and recent publications that led respected researchers to proclaim that “[dark matter] cannot be neutrinos”. We then provide the physics resulting in relic neutrino’s significant power...
