Bulletin of the American Physical Society
Joint Fall 2011 Meeting of the Texas Sections of the APS, AAPT, and Zone 13 of the SPS
Volume 56, Number 7
Thursday–Saturday, October 6–8, 2011; Commerce, Texas
Session N4: High Energy Physics IV |
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Chair: Marco Guzzi, Southern Methodist University Room: Sam Rayburn Center Second Floor, Room Traditions |
Saturday, October 8, 2011 12:05PM - 12:17PM |
N4.00001: ECR Ion Source for a High-Brightness Cyclotron Justin Comeaux, Peter McIntyre, Saeed Assadi New technology is being developed for high-brightness, high-current cyclotrons with performance benefits for accelerator-driven subcritical fission power, medical isotope production, and proton beam cancer therapy. This paper describes the design for a 65 kV electron cyclotron resonance (ECR) ion source that will provide high-brightness beam for injection into the cyclotron. The ion source is modeled closely upon the one that is used at the Paul Scherrer Institute. Modifications are being made to provide enhanced brightness and compatibility for higher-current operation. [Preview Abstract] |
Saturday, October 8, 2011 12:17PM - 12:29PM |
N4.00002: The Search For Supersymmyetry in the MET +Jets +Taus Final State Using CMS Angela Marotta, Will Flanagan, Andres Florez, Alfredo Gurrola, Teruki Kamon, Jieun Kim, Roy Montalvo Supersymmetry provides a natural candidate for dark matter. A search for SUSY in final states with highly energetic jets, large momentum imbalance, and tau pairs is performed using data samples with a total integrated luminosity of 1143 pb-1 of pp collisions at sqrt(s) = 7 TeV collected with the CMS detector at the CERN Large Hadron Collider (LHC). The Standard Model (SM) backgrounds are estimated using data--driven techniques. [Preview Abstract] |
Saturday, October 8, 2011 12:29PM - 12:41PM |
N4.00003: High brightness 50 MeV Cyclotron for Accelerator-Driven Subcritical Fission Saeed Assadi, Karie Badgley, Thomas Mann, Peter McIntyre, Nathaniel Pogue, Akhdiyor Sattarov The Accelerator Research Lab at Texas A{\&}M University is developing new accelerator technology for a high-brightness, high-current cyclotron with capabilities that will be beneficial for applications to accelerator-driven subcritical fission, medical isotope production, and proton therapy. As a first embodiment of the technology, we are developing a detailed design for TAMU-50, a 50 MeV, 5 mA proton cyclotron with high beam brightness. In this presentation we present devices and beamline components for injection, extraction, controls and diagnostics. We emphasize the system integration and implementation of TAMU-50 for production of medical radioisotopes. [Preview Abstract] |
Saturday, October 8, 2011 12:41PM - 12:53PM |
N4.00004: Bc absorption cross sections by nucleons Sonaina Undleeb, M.A.K. Lodhi The suppression of Bc may be a signature of the presence of a new state of matter, i.e. quark gluon plasma, but there is also absorption of Bc by commoving hadrons. This absorption must also be considered otherwise the explanation of the signal would not be clear. In order to study hadronic absorption of Bc, gauged SU(5) hadronic lagrangian in mesonic exchange model is used. The results with and without form factor explain the Bc absorption cross section by nucleons as a function of initial state centre of mass energy. These processes have peak near threshold with cross section magnitude of few mb. Moreover, by changing values of cutoff parameter in small increments in the monopole form factor used, results indicate that absorption cross section increases with the increase in cutoff parameter. This implies that absorption rate of Bc increases if it is considered to be a large size particle. [Preview Abstract] |
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