Bulletin of the American Physical Society
Annual Meeting of the APS Four Corners Section
Volume 62, Number 17
Friday–Saturday, October 20–21, 2017; Fort Collins, CO
Session C6: Particle and Nuclear Physics II |
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Chair: Darrel Smith, Embry-Riddle Aeronautical University Room: Lory Student Center 376 |
Friday, October 20, 2017 10:30AM - 10:54AM |
C6.00001: Searching for Supersymmetry with Higgs Bosons at the LHC Invited Speaker: Keith Ulmer The Large Hadron Collider (LHC) at CERN currently provides the highest energy particle collisions ever produced in a laboratory. These collisions were reconstructed and analyzed by the CMS and ATLAS experiments to claim the discovery of the Higgs Boson in 2012, thus completing the standard model of particle physics. This talk presents searches for physics beyond the standard model at CMS where the newly discovered Higgs Boson is being used as a search tool to probe even deeper for evidence of supersymmetry and dark matter. [Preview Abstract] |
Friday, October 20, 2017 10:54AM - 11:06AM |
C6.00002: Nucleon decay search with EXO-200 Adam Craycraft, Igor Ostrovskiy, William Fairbank EXO-200 is a prototype enriched liquid xenon time projection chamber. Its objective is to observe neutrinoless double beta decay. It has discovered two neutrino mode double beta decay and set some of the most stringent limits on the neutrinoless double beta decay mode. It has also been utilized to search for nucleon decay in Xe$^{136}$. [Preview Abstract] |
Friday, October 20, 2017 11:06AM - 11:18AM |
C6.00003: Laboratory Demonstration of HBT Interferometry for Ultra-high Resolution Astronomical Imaging David Kieda, Nolan Matthews This talk describes the development of an astronomical imaging technique exploiting\textunderscore Hanbury Brown Twiss (HBT) intensity interferometry. We have successfully demonstrated two-photon HBT temporal coherence in the laboratory with a variety of pseudo-random and thermal blackbody (arc lamp) light sources. We describe instrumentation methods for measuring second order photon spatial coherence which is related to simulated source image shape. We then use a modified Fourier inversion analysis to reconstruct the images of simulated stars and binary systems. The talk concludes with a description of the potential use of large arrays of atmospheric Cherenkov telescopes such as the VERITAS observatory (Amado, Arizona) and the future CTA Observatory (Canary Islands, Spain and Paranal, Chile) to directly image nearby stars using HBT interferometry. [Preview Abstract] |
Friday, October 20, 2017 11:18AM - 11:30AM |
C6.00004: Neutrino-Induced Charged Current Inclusive Pion Cross-section Measurement in the NOvA Near Detector Paul Rojas, Norm Buchanan The NuMI Off-Axis Electron Neutrino Appearance (NOvA) experiment is a long-baseline neutrino experiment designed to detect neutrino oscillations and measure their properties.~ The intense NuMI neutrino beam, generated at Fermilab, incident on the NOvA near detector provides the opportunity to study neutrino interactions at an unprecedented level. ~In this presentation, I will discuss an analysis underway to measure the rate of muon neutrino charged current interactions resulting in the production of a charged pion. [Preview Abstract] |
Friday, October 20, 2017 11:30AM - 11:42AM |
C6.00005: Estimating the Secondary Interaction Systematic From Neutrino-Induced Pion Production in T2K Matthew Hogan Tokai-to-Kamioka (T2K) is a long-baseline neutrino experiment with a narrow band neutrino energy spectrum that is peaked at 600 MeV. The Pi-Zero detector (POD) is a plastic scintillator-based detector located in the off-axis near detector complex 280 meters from the beam origin. It is designed to constrain neutral-current induced $\pi^0$ production background at the far detector using the water target that is interleaved between scintillator layers. A POD-based cross-section measurement of muon neutrino charged-current (CC) single charged pion ($1\pi^+$) interaction channel is being developed to measure the kinematic phase space of the outgoing muon. The selection and reconstruction of neutrino-induced $1\pi^+$ in the POD is affected by hadronic, secondary interactions (SI) of pions. This work describes techniques for estimating the systematic uncertainty from SI and the impact on the CC$1\pi^+$ cross-section measurement. [Preview Abstract] |
Friday, October 20, 2017 11:42AM - 11:54AM |
C6.00006: Search for supersymmetry using boosted Higgs Bosons and missing transverse momentum in proton-proton collisions at 13 TeV Frank Jensen CMS results at 8 and 13 TeV have placed bounds on gluino, squark, and electroweakino production in supersymmetric extensions to the Standard Model. As potentially new particles are pushed to larger masses the products of their decay will generically be imparted with large momenta. Certain classes of models predict boosted objects, such as high pT Higgs or gauge bosons, in association with missing energy from sparticles escaping detection. A new analysis strategy using jet substructure techniques is applied to enhance sensitivity to models where a boosted object can be contained in a single large jet. We will describe an analysis looking for evidence of supersymmetry in events with missing energy and boosted Higgs (decaying to b-quarks) or Z bosons in the final state. A search using the 35.9/fb of data collected at the CMS experiment during 2016 will be presented. [Preview Abstract] |
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