Bulletin of the American Physical Society
2020 Annual Meeting of the APS Four Corners Section (Virtual)
Volume 65, Number 16
Friday–Saturday, October 23–24, 2020; Albuquerque, NM (Virtual)
Session F01: Poster Session (4:00pm - 6:00pm)On Demand
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F01.00001: Calibration of Multiple Optical Telescopes in the Falcon Telescope Network Ethan Albrecht, Francis Chun, Michael Plummer, Kody Wilson, David Strong, Casey Schuetz-Christy Ground-based observations of satellites are a key component of Space Domain Awareness and support the mission of the United States Space Force. However, satellite observations cannot be compared simultaneously from geographically diverse locations without a common basis for comparison. In this project, a method was developed to calibrate a network of telescopes using measurements of the same calibration stars (CalStars) recorded simultaneously at several observation sites across the continental United States. The Falcon Telescope Network (FTN) consists of six telescopes in Colorado, one in Pennsylvania, one in Chile, and two in Australia. These telescope systems have identical hardware components such as the mount, camera, filter wheel, and photometric filters. The U.S. based telescopes were used to observe CalStars of different magnitudes and air mass selected from the Landolt and Oja star catalogues. The CalStars are observed simultaneously by multiple sites on multiple nights throughout the year so that we can quantitatively compare their respective extinction coefficients and zero points, with the ultimate goal of developing photometric transformation relationships between the telescopes. DISTRIBUTION STATEMENT A. Approved for public release, distribution unlimited USAFA PA{\#} USAFA-DF-2020-335 [Preview Abstract] |
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F01.00002: A Study of Z Mic, an RR Lyrae Star Joshua Mickelsen The ability to measure the distance to stars has shown to have a lot of error that differs among the method used.~ A Cephid variable star is used as a standard candle through a known period-luminosity relationship but is unknown if RR Lyrae stars can also be used as standard candles through their own theoretical period-luminosity relationship. The focus of this project was to determine if the distance derived from a theoretical period-luminosity relation matches the distance measured by the GAIA survey using stellar parallax.~ Concerning the star Z Mic, the distance obtained from the period-luminosity relation was found to be in agreement with the GAIA survey, showing that in some cases the period-luminosity relation of RR Lyrae stars can be used to find the distance to standard candles. [Preview Abstract] |
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F01.00003: Interference Patter Structured Imaging Utilizing Micromirror Display Daniel Gray IPSII is a lensless, single pixel imaging technique using mechanically scanned interference patterns. Using only simple, flat optics; no lenses, curved mirrors, or acousto-optics are used in pattern formation or detection. ISPII has no fundamental limit on working distance as well as a depth of field and field of view independent of resolution. An interference pattern is projected across the target object to obtain information using plane waves producing sinusoidal interference patterns allowing us to measure in the Fourier basis. Mechanically scanning the angles to change the interference pattern is slow, producing one pixel nearly every second. We intend to improve the time to scan an object by utilizing a micromirror array to modify the interference patterns such that multiple measurements can be made at one angle. Updating the micromirror array is much faster than changing the angles at which the target is scanned. This will greatly reduce the time required as we will not need to scan with as many angles to obtain an image as well as generating a wider range of basis functions. In addition to increasing the speed this may allow us to better utilize compressive sensing techniques where an n-pixel image may be obtained by scanning only a fraction of n-points on the object. [Preview Abstract] |
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F01.00004: Hyperfine splittings of two photon 5s -- 6s transitions of Rb Carson McLaughlin, Seth Orson, Mark Lindsay, Randy Knize Using a single frequency tapered amplifier diode laser scanning around 993 nm in a Rb cell, we have conducted two photon Doppler free spectroscopy of $^{\mathrm{85}}$Rb and $^{\mathrm{87}}$Rb. Using a wavemeter, we have measured the splittings and absolute positions of the four $\Delta $F$=$0 hyperfine transitions from 5s to 6s to an accuracy of 0.001 cm$^{\mathrm{-1}}$. We are also measuring the dependence of the hyperfine splittings on laser power and on the presence of various values of an applied DC electric field. [Preview Abstract] |
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F01.00005: Strengths and Linewidths of Two Photon 5s -- 6s Hyperfine Transitions of Rb Seth Orson, Carson McLaughlin, Mark Lindsay, Randy Knize Using a single frequency tapered amplifier diode laser scanning around 993 nm in a Rb cell, we have measured the four $\Delta $F$=$0 hyperfine lines of the Doppler free two photon 5s -- 6s transition in $^{\mathrm{85}}$Rb and $^{\mathrm{87}}$Rb. We have confirmed a two photon transition by measuring the signal strength vs laser power squared and observing a linear relationship. We are currently measuring the transition linewidth dependence on laser power. We will also measure the transition linewidth dependence on an external DC electric field. [Preview Abstract] |
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F01.00006: Optical Imaging of Magnetic Particle Rotation and Oscillation in High Viscosity Fluids River Gassen, Dennis Thompkins, Guy Hagen, Kathrin Spebdier The purpose of this experiment is to study the oscillation and rotation of nanoparticles in fluids of different viscosities. The investigations have practical applications to the medical field, specifically drug delivery through high viscosity fluids like mucus. Magnetic barium hexaferrite (BaFe12O19) and iron oxide (Fe3O4) particles were suspended in distilled water or various glycerol concentrations. The mixtures had a concentration of 2.50mg/ml for the BaFe12O19 and 1.00mg/ml for Fe3O4. Magnetic particles were exposed to oscillating or rotating magnetic fields and imaged with an optical microscope. Time-varying magnetic fields ranging from 10Hz to 180Hz are created by pairs of home-made wire coils that insert into the microscope. Magnetic field amplitudes can be varied from 0-12 mT. The resulting measured frequency of the particle oscillation or rotation equaled the drive frequency when the drive frequency was less than half the frame rate. For high viscosity fluids, higher magnetic field strength was necessary for particle motion. Further investigation will need to be done to determine how the viscosity, particle size, and drive frequency impact the movement of the particles, going from oscillating at the driving frequency to no particle motion. [Preview Abstract] |
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F01.00007: Detecting Alzheimer's Disease Biomarker Methylglyoxal in Blood Plasma via Two Portable and Fast Small Volume Blood Diagnostics Devices to Compare Solid vs. Liquid Phase Colorimetry Riley Rane, Srivatsan Swaminathan, Abbie Elison, Shefali Prakash, Nikhil Suresh, Thilina Balasooriya, Wesley Peng, Aashi Gurijala, Mohammed Sahal, Lauren Puglisi, Karishma Sivakumar, Eric Culbertson, Robert Culbertson, Nicole Herbots Large scale proteomics research has accelerated the discovery of predictive Biomarkers of Susceptibility (BoS). The present work investigates two new methods to measure the BoS methylglyoxal for Alzheimer's Disease via two new rapid and portable Small Blood Volume Blood Diagnostics devices. One, InnovaStrip\texttrademark [1], uses solidified blood plasma after rapid separation, and the other, Alz-BioSs\texttrademark [2], uses liquid blood plasma after microfluidic filtration. InnovaStrip$^{\mathrm{TM}}$~rapidly separates plasma from blood in microliter-sized blood drops and solidifies both in minutes into uniform Homogeneous Thin Solid Films (HTSF) fit for solid state analysis.~Alz-BioSs\texttrademark applies blood drops in a blood-plasma separation microdevice. Both use a small portable device to detect biomarkers via colorimetry. Colorimetry measurements are then compared to Solid State Nuclear Magnetic Resonance and X-ray Free Electron Laser analysis. [1] Herbots \textit{et. al} Pat. Pend. (2020) [2] Swaminathan \textit{et. al} Pat. Pend. (2020) [Preview Abstract] |
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F01.00008: Symbolic Tools in ECSK Theory Joshua Leiter Einstein-Cartan-Sciama-Kibble (ECSK) theory incorporates spin into General Relativity (GR) by allowing for torsion. The motivation of this theory comes from how elementary particles are categorized by their mass and spin. The inclusion of torsion changes the calculation of the connection, and it also makes the constraint of metric compatibility come out differently. I will explain the method to calculate the connection, and how to come up with the ECSK field equations. The code used for these computations utilizes ``DifferentialGeometry,'' a package in Maple. [Preview Abstract] |
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F01.00009: Dynamic Stomatal Patchiness: Parallel Behavior in Computation and Nature Matthew Hogan, David Peak, Keith Mott Previous studies have suggested that some biological processes are equivalent to computation, and the evidence for this view is growing. Plants must simultaneously and continuously regulate the apertures of all their stomata, allowing for sufficient CO$_{\mathrm{2}}$ uptake for photosynthesis while limiting the loss of water vapor outflow. Thermography has shown that sudden changes to light or humidity cause stomata to spontaneously form local patches that oscillate simultaneously. We examine the emergent properties of a model of stomatal activity, where a leaf is simulated as an array of locally interacting units. Individual units are modeled to solve the governing thermodynamic equations of gas and water transport within the guard cells and surrounding epidermal cells. The emergent behavior in this model suggests a simple explanation for the phenomenon of stomatal patchiness. Furthermore, the discussed model is of a similar design to a Cellular Neural Network (CNN); a computational paradigm in which individual units perform local tasks to accomplish or optimize global tasks. Simulated array data could support the argument for global optimization of CO$_{\mathrm{2}}$ uptake to water vapor outflow, suggesting a decision making process may be present in plants. [Preview Abstract] |
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F01.00010: \textit{Ab Initio}\textbf{ Studies of the Phase Transition Mechanism of MnO}$_{\mathrm{\mathbf{2}}}$\textbf{ Modified with Bi, Cu, and Mg in Rechargeable Zn/MnO}$_{\mathrm{\mathbf{2}}}$\textbf{ Batteries.} Birendra Ale Magar, Nirajan Paudel, Timothy N. Lambert, Igor Vasiliev Rechargeable alkaline Zn/MnO$_{\mathrm{2}}$ batteries hold great promise for electrical energy storage and power grid applications due to their high energy density, non-toxicity, and low cost. Bi and Cu additives are known to significantly extend the cycle life and increase the capacity of MnO$_{\mathrm{2}}$ electrodes in rechargeable Zn/MnO$_{\mathrm{2}}$ batteries. However, the mechanism of interaction of Bi and Cu with the MnO$_{\mathrm{2}}$ cathode material is not completely understood. To investigate the influence of chemical additives on the rechargeability and cyclability of MnO$_{\mathrm{2}}$ electrodes, we calculated the geometries and formation enthalpies for a wide variety of crystal structures of MnO$_{\mathrm{2}}$ modified with Bi, Cu, and Mg using \textit{ab initio} computational methods based on density functional theory. The results of our calculations suggest that reversible transitions between the layered and spinel phases could play an important role in the cycling mechanism of chemically modified MnO$_{\mathrm{2}}$ cathodes. [Preview Abstract] |
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F01.00011: Interaction contributions to the spin Hall effect in the Kane-Mele-Hubbard model Siheng Wang, Christopher Ard, Hua Chen Different from the charge Hall effect in which Coulomb interaction is necessary for establishing steady states, the spin Hall effect (SHE) has usually been understood as a non-interacting effect, where the steady state is reached by spin-orbit-coupling-induced intrinsic or extrinsic spin relaxation. However, in nonmagnetic systems proximate to a magnetic instability, interaction may play a significant role in the SHE. Here we study the interaction contributions to the SHE by using the nonequilibrium Green function approach in a concrete model: the Kane-Mele-Hubbard model. The model involves nearest-neighbor spin-independent hopping and 2nd nearest-neighbor spin-dependent hopping of $s$ electrons on a honeycomb lattice. The on-site Hubbard interaction is treated by an unconstrained Hartree-Fock decoupling self-consistently. By solving the non-equilibrium Green function of a finite system coupled to two leads, we calculate the spin accumulation on the lateral edges which is a direct experimental observable. We compare the cases with and without the Hubbard interaction, and study the connection between the SHE and local spin susceptibility at the edges. [Preview Abstract] |
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F01.00012: Investigating the Blandford-Znajek Process for Black Hole Jets Melissa Rasmussen Streams of charged particles ejected from the poles of black holes may be explained by the Blandford-Znajek process. In this theory, a spinning black hole, surrounded by an electromagnetic field, drags and twists the electromagnetic field around itself. The twisted electromagnetic field may catch charged particles near the black hole’s event horizon and funnel them to the two poles, producing these black hole jets that travel at a significant fraction of the speed of light. This project’s goal is to find possible mathematical solutions to describe the situations that could give rise to these jets. More specifically, we solve Einstein’s equations in an asymptotically flat spacetime for a spinning black hole in an electromagnetic field. The Blandford-Znajek model then allows us to determine whether a particular solution allows for the extraction of energy from a black hole. Unlike other research studying this phenomenon, we study only particles in the immediate vicinity of the black hole’s event horizon, disregarding any accretion disk or effect of gravity from any object but the black hole. In this presentation, we expound upon the background and methods of the research, and discuss our results thus far. [Preview Abstract] |
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F01.00013: Symmetries of the Gravitational Field and Symmetric Criticiality Guillermo Frausto, Charles Torre method of symmetry reduction. Lie’s methods have often been applied to the Lagrangians underlying the PDEs of physics, but (as Stephen Hawking first showed in the context of General Relativity) it is possible that the symmetry reduction of Lagrangians can fail in the sense that the reduced Lagrangian gives the wrong PDEs. This issue was resolved by Anderson, Fels, Torre, who gave necessary and sufficient conditions on a symmetry group such that the reduction of any Lagrangian will be successful. The goal of this project is to apply these conditions to gravitational field theories. All possible symmetry groups (and hence all possible symmetry reductions) of gravitational fields have been enumerated by Hicks. There are about 100 such groups. I use the math software Maple, with the differential geometry software package created by Ian Anderson and Charles Torre, to check once and for all the conditions of Anderson, Fels, Torre. This is done by calculating the Lie algebra cohomology of the symmetry group relative to its isotropy subgroup and the vector space of isotropy. [Preview Abstract] |
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F01.00014: Rapidly Assessing Severity of SARS-CoV-2 (COVID-19) via a Small Blood Volume Diagnostics device, InnovaStrip for Kidney Function and Hemorrhage using Blood, Plasma and Serum Electrolytes and Metals Lauren Puglisi, Nikhil Suresh, Thilina Balasooriya, Wesley Peng, Aashi Guijala, Srivatsan Swaminathan, Mohammed Sahal, Abbie Elison, Riley Rane, Karishma Sivakumar, Visweshwar Swaminathan, Eric Culbertson, Robert Culbertson, Nicole Herbots Comprehensive Blood Diagnostics (BD) and biomarkers of susceptibility (BoS) are needed for effective care and use of beds, during pandemics, e.g. SARS-CoV-2 (COVID-19). This work developed a comprehensive, fast, accurate, small volume BD device InnovaStrip$_{\mathrm{\thinspace }}$[1], using only micro-L sized blood drops. InnovaStrip solidifies in mins drops into uniform, Homogeneous Thin Solid Films (HTSFs) without coagulation. Super -Hydrophilic coatings, SH HemaDrop$_{\mathrm{\thinspace }}$[1] yield large area HTSFs with separate blood, plasma and serum regions. Specific electrolytes and metals are measured for each via Ion Beam Analysis (IBA), and X-ray Fluorescence (XRF). Protein based BoS can be quantified via Solid State Nuclear Magnetic Resonance (ssNMR) analysis. Compositions are compared at different depths, to establish HTSF regions homogeneity, minimum blood drop volume and surface areas to ensure accuracy and reproducibility. The relative combined error obtained by statistical analysis of blood HTSFs is within $+$/- 10{\%}, the medical standard. [1] Puglisi, Rane and Herbots, Pat.Pend. (2020) [Preview Abstract] |
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F01.00015: Rapid Precipitation of Dissolved Solids in Micro-L Drops For Rapid, Small Volume Composition Analysis via InnovaDrop\texttrademark of Rain Pollution using Timed Sampling Aarush Thinakaran, Rahil Shah, Tanvi Sathish, Shreyash Prakash, Vishweshwar Swaminathan, Karishma Sivakumar, Nikhil Suresh, Mohammed Sahal, Lauren Puglisi, Robert Culbertson, Nicole Herbots Totally Dissolved Solids (TDS) in water include metals Pb, As, radionuclides (Sr) along light elements (S, K, Mg, Ca, Na, Cl), due to growing pollution and climate change.This work studies a new, cheap, safe, rapid method to identify TDS in water, InnovaDrop [1], which needs only drops as samples. InnovaDrop aims for accuracy and reproducibility of $+$/-10{\%} via rapid precipitation of drops into Homogeneous Thin Solid Films (HTSF), using new hyper-hydrophilic polymer PhiloDrop [1] on microscope slides. HTSFs are safe to store and transport, and can be analyzed in mins by hand-held X-Ray Fluorescence (XRF). Drops from water samples pipetted on InnovaDrop, absorb rapidly PhiloDrop so TDS precipitate into HTSF for XRF elemental analysis. XRF accuracy and reproducibility is achieved with HTSF of pre- solidified metered drops of calibration solutions. Present methods cannot be deployed as rapidly during a catastrophe such as wildfires, floods, or cooling water leaks from nuclear plants or mines. InnovaDrop yields results in 30 mins. [1] Herbots, Thinakaran Int. {\&} US Pat. Pend. (2020) [Preview Abstract] |
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F01.00016: Corroborating LiTaO$_{\mathrm{3}}$ Surface Energies Measured by Three Liquid Contact Angle Analysis (3LCAA) with Computed Gibbs Energy for Wafer Bonding Engineering Shefali Prakash, Abbie Elison, Srivatsan Swaminathan, Riley Rane, Mohammed Sahal, Brian Baker, Lauren Puglisi, Saaketh Narayan, Robert Culbertson, Nicole Herbots LiTaO3's piezo- and opto-electrical properties make its monolithic integration to Si key to the Internet of Things. In this work, Nano-Bonding (NB) uses Surface Energy (SE) Engineering to cross-bond LiTaO$_{\mathrm{3}}$ and Si/SiO$_{\mathrm{2}}$ at RT by engineering their surface energies and their hydro-affinity into far-from-equilibrium via Three Liquid Contact Angle Analysis (3LCAA). SE are found to average 41 $+$/- 2 mJ/m$^{\mathrm{2}}$ for hydrophobic LiTaO$_{\mathrm{3}}$, while wet etching yields 49 $+$/- 1.5 mJ/m$^{\mathrm{2}}$ for hydrophilic SiO$_{\mathrm{2}}$, and 53 $+$/- 0.2 mJ/m$^{\mathrm{2}}$ for hydrophilic Si. Thus hydrophobic-hydrophilic pairs can be engineered. $\Delta $G$_{\mathrm{LiTaO3-SiO2\thinspace }}$computed from SE is found to be negative at -8.18 mJ/m$^{\mathrm{2}}$ while $\Delta $G $_{\mathrm{LiTaO3-SiO2}}$ is -0.46 mJ/m$^{\mathrm{2}}$ at RT. Negative $\Delta $Gs favor bonding of hydrophobic LiTaO$_{\mathrm{3}}$, to hydrophilic Si and SiO$_{\mathrm{2}}$. [Preview Abstract] |
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F01.00017: Ab Initio Study of the Effects of Strain and Doping on the Properties of LSMO/PZT Multiferroic Interfaces Krishna Acharya, Igor Vasiliev We apply ab initio methods based on density functional theory (DFT) to study the influence of strain and doping on the magnetoelectric coupling at the (0,0,1) interface between PZT (PbZr$_{0.2}$Ti$_{0.8}$O$_3$) and LSMO at three different doping levels (La$_{0.5}$Sr$_{0.5}$MnO$_3$, La$_{0.8}$Sr$_{0.2}$MnO$_3$) and La$_{0.67}$Sr$_{0.33}$MnO$_3$). The effects of strain are modeled by applying a $\pm1\%$, uniaxial strain in the direction orthogonal to the LSMO/PZT interface. Our calculations show that the magnetic properties of the LSMO layer are strongly influenced by both the doping concentration and the applied uniaxial strain. The results of our study are consistent with the available experimental data. [Preview Abstract] |
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F01.00018: Validating Surface Energy Measured by Three Liquid Contact Angle Analysis with Computed Gibbs Energy for LiNbO$_{\mathrm{3}}$/$\alpha $-Quartz SiO$_{\mathrm{2}}$ for Direct Wafer Bonding Abbie Elison, Mohammed Sahal, Shefali Prakash, Srivatsan Swaminathan, Riley Rane, Brian Baker, Jacob Kintz, Aliya Yano, Saaketh Narayan, Alex Brimhall, Lauren Puglisi, Dr. Robert Culbertson, Dr. Nicole Herbots LiNbO$_{\mathrm{3}}$ is a ferro-electric with the most significant electro-optical, piezo-electric properties, and a near perfect linear response. Hence, LiNbO$_{\mathrm{3}}$ is an ideal material to integrate piezoelectrics monolithically to Si. But lattice and thermal expansion mismatches between LiNbO$_{\mathrm{3}}$ and Si/SiO$_{\mathrm{2}}$ are incompatible with hetero-epitaxy and Direct Wafer Bonding (DWB). This work investigates DWB at RT via Nano-Bonding$^{\mathrm{TM,\thinspace 1\thinspace }}$(NB). NB nucleates bonding inter-phases via complementary 2D- Precursor Phases (2D- PP) instead of thermal activation. 2D-PP relies on Surface Energy Engineering (SEE), which characterizes and then modifies hydro-affinity and surface energy into far-from-equilibrium states. SEE finds that $\Delta $Gs for interaction between LiNbO$_{\mathrm{3}}$ and Si/SiO$_{\mathrm{2}}$ are both positive and do not favor NB. Hence, SEE on LiNbO$_{\mathrm{3}}$ and Si/SiO$_{\mathrm{2}}$ needs to change $\Delta $G to negative at RT. Experimental results show that SEE of ?-quartz SiO$_{\mathrm{2}}$ and LiNbO$_{\mathrm{3}}$ yield NB at RT. $^{\mathrm{1}}$ Herbots et al. US Pat. 6613677 (2003), 7,851,365 (2010), 9,018,077 (2015), 9,589,801 (2017), and pending (2020) [Preview Abstract] |
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F01.00019: Non-Invasive Electron Beam Diagnostics for High-Average Currents Joel Williams, Sandra Biedron The development of non-invasive charge distribution detectors based on the electro-optic properties of materials has seen various implementations at electron accelerators, and particularly in free-electron laser facilities. Though there are various electro-optic detector arrangements that range in method of data encoding and measurement, the typical electro-optic bunch detector is arranged to measure the passing profile of the electric field of relativistic electron bunches by probing the polarization shift in the electro-optic material with a synched laser. This polarization shift arises out of the electro-optic effect induced in a particular material (e. g. ZnTe, GaP, DAST, etc) by the strong electric field of the passing bunches. These EO-materials have a high 1$^{\mathrm{st\thinspace }}$order non-linear coefficient, resulting in an index of refraction anisotropy that is linearly proportional to the applied field. Here we explore configurations for integration with operation for both low-energy and high-energy electron beams for a variety of electron pulse configurations including higher average currents. [Preview Abstract] |
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F01.00020: Hit finding efficiency at ICARUS using Through-going Muons Biswaranjan Behera Through going muons are muon tracks which travel a substantial distance in the detector volume and then exit. They typically are cosmic muons hitting the detector, as ICARUS is on surface, or muons produced by neutrino interactions in the rock surrounding the ICARUS modules. This talk will report on hit-finding and track-finding efficiency for through-going muons in ICARUS detector. This is an important intermediate step towards a study of particle identification, calibration and correction of detector effects such as space charge effect. [Preview Abstract] |
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F01.00021: Searching for the Decay of a B meson into a Proton and a Lepton Cassandra Billings, Matthew Bellis The BaBar experiment, located at the SLAC National Accelerator Laboratory, was motivated by the investigation of charge-parity violation and the asymmetry between matter and antimatter in the universe. We are searching for B mesons decaying to a baryon and a lepton, using Monte Carlo (MC) simulated data and MC background studies. We are specifically looking at five decay processes, p𝞶, pe-, p𝜇, ne-, n𝜇. These decays violate baryon number and would be a sign of new physics beyond the standard model. The data has been skimmed and transferred to Siena College where we are optimizing our selection criteria making use of basic cuts (PID) and machine learning algorithms. The current status of this project will be presented. [Preview Abstract] |
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F01.00022: Identifying Amusement Park Physics Curriculum Enhancements for USU Physics Day at Lagoon John Dennison, Achal Duhoon, Phillip Lundgreen To enhance the educational benefits for secondary students attending USU Physics Day at Lagoon, extensive web-based STEM curricula have been developed to support activities both during Physics Day and in the classroom before and after the annual one-day event. We report on our evaluations of 12 years of teacher surveys and educator recommendations to identify the most sought-after and effective enhancements to the Physics Day contests and curriculum including improvements for physics topics and content, effective and teacher-friendly lesson formats, ties with standard curriculum objectives, and incentives. USU Physics Day is one of the Intermountain West region's oldest and largest STEM outreach activities (https://physicsday.usu.edu/). Held annually at Lagoon Amusement Park for the last 32 years, it has in recent years had annual participation of \textasciitilde 10,000 students and \textasciitilde 600 teachers from over 130 high schools and middle schools. Amusement park physics accesses associative learning situations, and utilizes hands-on activities to apply basic concepts studied in physics and physical science classrooms; it also instills excitement about science by focusing on myriad real-world examples of physics principles so ideally demonstrated at an amusement park. [Preview Abstract] |
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F01.00023: How to Lead to the Demise of Schrodinger's Cat from a Distance with Spooky Action at a Distance and Spooky Action Not at a Distance: Three Null (Negative) Measurements and Information Transfer Faster than the Speed of Light, A Lot of Knowledge and No Measurements with Physical Interactions Douglas Snyder This presentation shows just how far one can go in affecting the physical world without any measurements involving physical interactions (positive measurements). A null measurement that does not rely on a physical interaction is used to first measure one of two entangled electrons (electron 1). Information is instantaneously transferred (spooky action at a distance) upon the measurement of electron 1 to electron 2 for which there is also a null measurement. Both of these measurements and the instantaneous transmission of information involve knowledge.~ Second, a third null measurement leads to the demise of Schrodinger's cat. With a null measurement on electron 1, Bohr's defense of quantum mechanics is irrelevant:~ It is not necessary that there be a physical interaction between electron 1 and a physical measuring instrument that is fundamental to Bohr's version of complementarity for physics in order for the null measurement on electron 1 to affect electron 2.~ For Einstein, Podolsky, and Rosen, how can one argue for local hidden physical variables involved in measurement of electron 2 when there are no overt physical variables involved in a physical interaction in the null measurement on electron 1?~ [Preview Abstract] |
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F01.00024: Payloads for the Colorado Space Grant Consortium Mark Heltman, Roxie Sandoval, Nikolas Conmy, Charles Hakes A payload was built and flown during the summer of 2020 for the Colorado Space Grant Consortium DemoSat balloon. The payload included two experiments, the first one was to see which color white or silver versus black was better at keeping a low internal temperature. The second experiment was to use a Peltier device to generate power by heating the device using solar insolation. To support the experiments there were two other systems the temperature management system (TMS) and the power management system (PMS). Finally, there was also a Mobius camera and a GPS to record the flight. From the experiment, white was determined to be better at keeping a payload temperature cooler, and black did sustain warmer temperatures. However, the silver temperature sensor did not record any usable data during the flight, so therefore its results were inconclusive. Once landed and retrieved, there were noticeable temperature difference between the boxes. Silver was quantifiably cooler than white when compared to black. During the flight, the Peltier generated an average of 4.6mV. The payload performed as expected, the only failure was that the GPS did not turn on. [Preview Abstract] |
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