Rory O’Dwyer

ORCID: 0000-0003-0174-1786
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About
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Research Areas
  • Particle Detector Development and Performance
  • Pickering emulsions and particle stabilization
  • Nuclear Physics and Applications
  • Enhanced Oil Recovery Techniques
  • Nuclear physics research studies
  • Point processes and geometric inequalities
  • Dark Matter and Cosmic Phenomena
  • Particle physics theoretical and experimental studies
  • Radiation Detection and Scintillator Technologies
  • Asthma and respiratory diseases
  • Radiation Therapy and Dosimetry
  • Advanced Graph Theory Research
  • Respiratory and Cough-Related Research
  • Digital Image Processing Techniques
  • Theoretical and Computational Physics
  • Advanced NMR Techniques and Applications
  • Drug-Induced Adverse Reactions
  • Geological formations and processes
  • advanced mathematical theories
  • Topological and Geometric Data Analysis
  • Computational Geometry and Mesh Generation
  • Mathematical Dynamics and Fractals
  • Noncommutative and Quantum Gravity Theories
  • X-ray Spectroscopy and Fluorescence Analysis

Stanford University
2022-2023

Menlo School
2023

University of Montana
2023

Texas A&M University
2019-2021

10.1016/j.nima.2020.163398 article EN publisher-specific-oa Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2020-01-09

IN a subset of patients with asthma, nonsteroidal antiinflammatory drugs (NSAIDs) that inhibit both cyclooxygenase 1 (COX-1) and 2 (COX-2) can precipitate dangerous asthmatic attacks. It has been proposed in these patients, the attacks are triggered by inhibition COX-1 not COX-2, use highly selective COX-2 inhibitors may be safe even those sensitivity to NSAIDs.1We describe two cases acute, life-threatening bronchospasm after administration parecoxib, parenteral inhibitor, history asthma but...

10.1097/00000542-200502000-00031 article EN Anesthesiology 2005-01-19

Direct measurements of the total fusion cross section for B8+40Ar were achieved with active target technique. The excitation function was extracted at energies near Coulomb barrier. is well described by a coupled reaction channels calculation. data compared previous B8 experiments on Si28 and Ni58 targets. No evidence striking enhancement barrier, that previously reported B8+58Ni system, observed in these direct measurements. present are systematically consistent results B8+28Si higher other...

10.1016/j.physletb.2021.136256 article EN cc-by Physics Letters B 2021-03-29

A bstract The Light Dark Matter eXperiment (LDMX) is an electron-beam fixed-target experiment designed to achieve comprehensive model independent sensitivity dark matter particles in the sub-GeV mass region. An upgrade LCLS-II accelerator will increase beam energy available LDMX from 4 8 GeV. Using detailed GEANT4-based simulations, we investigate effect of increased on capabilities separate signal and background, demonstrate that veto methodology developed for GeV successfully rejects...

10.1007/jhep12(2023)092 article EN cc-by Journal of High Energy Physics 2023-12-14

Abstract In the past several years, there has been a large interest of Time Projection Chambers (TPCs) for use in experimental nuclear physics. This continued tandem with requirement high efficiency detectors low intensity radioactive ion beams. TexAT is Active Target TPC (AT-TPC) built at Texas A&M University utilizing MICRO MEsh GASeous (MicroMegas) pads and GET electronics developed specifically TPCs. design combines good pixelation surrounding shell Si/CsI telescopes to make an...

10.1088/1742-6596/1308/1/012006 article EN Journal of Physics Conference Series 2019-08-01

We study the double bubble problem where perimeter is taken with respect to hexagonal norm, i.e. norm whose unit circle in $\mathbb{R}^2$ regular hexagon. provide an elementary proof for existence of minimizing sets volume ratio parameter $α\in (0,1]$ by arguing that any minimizer must belong a small family parameterized sets. This further simplified showing $60^{\circ}$ angles are not optimal as well other geometric exclusions. then all $α\in(0,1]$ except at single point, which we find two...

10.48550/arxiv.2401.09893 preprint EN other-oa arXiv (Cornell University) 2024-01-01

The Heavy Photon Search (HPS) experiment is designed to search for a new vector boson $A^\prime$ in the mass range of 20 MeV/$c^2$ 220 that kinetically mixes with Standard Model photon couplings $\epsilon^2 >10^{-10}$. In addition general importance exploring light, weakly coupled physics difficult probe high-energy colliders, prime motivation this possibility sub-GeV thermal relics constitute dark matter, scenario requires comparably light mediator, where models hidden $U(1)$ gauge...

10.48550/arxiv.2203.08324 preprint EN other-oa arXiv (Cornell University) 2022-01-01

This paper formalizes the stepping stone problem introduced Ladoucer and Rebenstock [G] to setting of simple graphs. considers set functions from vertices our graph N, which assign a fixed number 1's some higher numbers other by adding up their neighbors' assignments. The solution is defined as an element obtained argmax maxima these functions, its growth. work organized into on bounded unbounded degree cases. In case, sufficient conditions are for superlinear sublinear Furthermore this...

10.54870/1551-3440.1616 article EN The Mathematics Enthusiast 2023-07-08

I define the lattice propagator on a very general collection of graphs, namely graphs locally isomorphic to $\mathbb{Z}^{d}\times \mathbb{Z}$. then polygonal approximations minkowski metric and corresponding for these. show in $d=1$, as suggested by approximation, continuum limit propagators converges Klien Gordon Propagator. Finally, obtain taxicab spaces, including $\mathbb{T}^{d}$, Klein bottle, discretization de-Sitter space.

10.48550/arxiv.2309.09535 preprint EN cc-by arXiv (Cornell University) 2023-01-01

In previous work, a lattice scalar propagator was rigorously defined in $d=1$ flat space and shown to equal the known Klein-Gordon of QFT. This work generalizes this manifolds whose universal cover is hyperbolic half plane as well broad class higher dimensional manifolds. We motivate conjecture for power spectrum these curved propagators. Afterwards, an analogous definition Dirac spinor defined. The formulation propagators are unified by understanding object Fourier transform volume path...

10.48550/arxiv.2310.08695 preprint EN cc-by arXiv (Cornell University) 2023-01-01

We study the double bubble problem with perimeter taken respect to $\ell_1$ norm on $\mathbb{R}^2$. give an elementary proof for existence of minimizing sets any volume ratio parameter $0<\alpha\le1$ by direct comparison a small family parameterized sets. By simple analysis this we obtain shapes found in Morgan et al 1998.

10.48550/arxiv.2008.07767 preprint EN other-oa arXiv (Cornell University) 2020-01-01

In this paper we show that the solution of discrete Double Bubble problem over $\mathbb{Z}^2$ is at most ceiling function plus two continuous to problem, with respect $\ell^1$ norm, found in \cite{morgan1998wulff} and \cite{duncan2020elementary}.

10.48550/arxiv.2109.11879 preprint EN other-oa arXiv (Cornell University) 2021-01-01
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