Bulletin of the American Physical Society
Joint Fall 2017 Meeting of the Texas Section of the APS, Texas Section of the AAPT, and Zone 13 of the Society of Physics Students
Volume 62, Number 16
Friday–Saturday, October 20–21, 2017; The University of Texas at Dallas, Richardson, Texas
Session N5: Particle Physics VI |
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Chair: Steve Sekula, Southern Methodist University Room: DGAC 1.131 |
Saturday, October 21, 2017 2:30PM - 2:42PM |
N5.00001: Progress towards barium daughter tagging in $Xe^{136}$ decay using single molecule fluorescence imaging Austin McDonald The existence of Majorana fermions is of great interest as it may be related to the asymmetry between matter and anti-matter particles in the universe. However, the search for them has proven to be a difficult one. Neutrino-less Double Beta decay (NLDB) offers a possible opportunity for direct observation of a Majorana Fermion. The rate for NLDB decay may be as low as $\approx 1 $ $count/ton/year$ if the mass ordering is inverted. Current detector technologies have background rates between $4$ to $ 300$ $count/ton/year/ROI$ at the 100kg scale which is much larger than the universal goal of $0.1$ $count/ton/year/ROI$ desired for ton-scale detectors. The premise of my research is to develop new detector technologies that will allow for a background-free experiment. My current work is to develop a sensor that will tag the daughter ion $ Ba^{++}$ from the $Xe^{136}$ decay. The development of a sensor that is sensitive to single barium ion detection based on the single molecule fluorescence imaging technique is the major focus of this work. If successful, this could provide a path to a background-free experiment. [Preview Abstract] |
Saturday, October 21, 2017 2:42PM - 2:54PM |
N5.00002: Development of the GEM Detector for Medical Imaging Monica Avila, Jaehoon Yu, Jin Mingwu, Thomas Bates High energy physics explores the fundamental constituents of matter and the interactions that occur between them. To achieve this goal, HEP utilizes particle accelerators and advance detectors. The Gas Electron Multiplier (GEM) technology is an advanced technique in particle detection. The GEM applies a high electric field in a noble gas mixture for the purpose of ionization detection. The detection of beta particles using GEM technology enables a growth in the medical imaging field. Utilizing the GEM as a beta detector provides a unique method to locate residual tumors tissues. The GEM detector in this scheme works as an amplification tool, creating an electron avalanche through the ionization of gas. My focal point in this research is the chamber and its customizable geometry. The prototype GEM detector is a multi-layer detector, which includes many components that can vary in sizes. The objective of this study is to understand the construction of the GEM detector, and how it can play a role in medical physics. [Preview Abstract] |
Saturday, October 21, 2017 2:54PM - 3:06PM |
N5.00003: R{\&}D Toward Ton-Scale HPGXe Neutrinoless Double Beta Decay Experiments Leslie Rogers NEXT is a high pressure Xenon gas time projection chamber experiment searching for Neutrinoless Double Beta decay which is scalable to the ton-scale. In order to scale up to this size there are some technical details to be worked out which UTA has begun work towards by building a large scale testing facility to test high voltage feed throughs, field cages, and electroluminescence regions that we will design at sizes not yet demonstrated before. [Preview Abstract] |
Saturday, October 21, 2017 3:06PM - 3:18PM |
N5.00004: Proton Calorimetry Study on the LArIAT Experiment Zachary Williams The Liquid Argon Time Projection Chamber In A Testbeam (LArIAT) experiment is a Liquid Argon Time Projection Chamber (LArTPC) placed in a charged particle beamline at Fermi National Accelerator Laboratory’s Test Beam Facility (FNAL FTBF). The purposes of this experiment are to calibrate LArTPC response to traversing charged particles of known momentum, to measure hadron-argon cross sections, and to explore detector R&D. This talk focuses on the use of the identified proton sample in the LArIAT beamline to improve the modeling of the energy loss by charged particles prior to entering the LArTPC. The aims of this study are to lower the systematics associated with hadron cross sections, and to provide a calibration sample for further study of highly ionizing particles in a LArTPC. Upstream energy loss estimation is critical to these aims. A new technique for estimating the upstream energy loss in LArIAT will be presented and compared to previous studies. [Preview Abstract] |
Saturday, October 21, 2017 3:18PM - 3:30PM |
N5.00005: Charged Current Coherent Pion Production detection with a Liquid Argon Time Projection Chamber Ilker Parmaksiz Charged Current Coherent Pion (CC-Coh Pi) production serves as an important neutrino cross-section for neutrino oscillation experiments by providing both a standard candle for low energy cross-sections as well as enhancing our understanding of other neutrino-nucleon interactions. The world data for neutrino energies above 3 GeV shows a tension when compared to leading production models, while at neutrino energies less than 3 GeV the situation is even more confusing. Liquid Argon Time Projection Chambers (LArTPC's) are a relatively new neutrino detector technology which allow for fine grain tracking and calorimetry of the neutrino-nucleon interactions which will provide insight to these cross-section puzzles. The Micro-Booster Neutrino Experiment (MicroBooNE) is a LArTPC located at Fermi National Accelerator Laboratory (FNAL) in a neutrino beamline peaked at \textasciitilde 1 GeV. Therefore, MicroBooNE provides an excellent opportunity to measure CC-Coh Pi cross-section and probe its production at low energy. In this presentation I will present some preliminary work done to study CC-Coh Pi at MicroBooNE and estimates of the relevant backgrounds. [Preview Abstract] |
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