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 F3: High Energy Physics II |
Hide Abstracts |
Chair: Jun Gao, Southern Methodist University Room: Sam Rayburn Center Second Floor, Room Traditions |
Friday, October 7, 2011 3:40PM - 3:52PM |
F3.00001: Beam Test Data Analysis of GEM Prototype Chamber Using One Bit Readout System Danrae Pray Gas Electron Multiplier (GEM) technology is currently a strong candidate for a Digital Hadron Calorimeter to be implemented in an experiment in future accelerators such as the International Linear Collider. The University of Texas at Arlington High Energy Physics team has been developing prototype GEM detectors which contain two layers of GEM foils. The team performed a two week long beam test of four prototype chambers with dimensions 30cm x 30cm. Three of these chambers were equipped with the one bit DCAL chip readout system jointly developed by Argonne National Laboratory and Fermi National Accelerator Laboratory teams. In this talk, we report the results of the test beam data analysis of GEM prototype detector responses and efficiency dependence on threshold and high voltage of these three DCAL chambers. [Preview Abstract] |
Friday, October 7, 2011 3:52PM - 4:04PM |
F3.00002: Test of the diphoton + missing transverse energy background model in ATLAS Kamile Yagci I present the data and MC comparisons for the selection variables of the two photon + $E_T^{miss}$ final state in ATLAS experiment. The data is taken from the proton-proton collisions of the 7 TeV center of mass energy at the Large Hadron Collider. The data sample studied was the initial 3.1 pb$^{-1}$ taken in the 2010 run. This analysis excluded the gravity mediated One Universal Extra Dimension model with $\Lambda$R=20, N=6 and $\mathrm{M_D}=5$ TeV for a curvature 1/R$\le$ 725 GeV at 95\% C.L., where $\Lambda$ is the cutoff scale, N is the number of large extra dimensions and $\mathrm{M_D}$ is the (4+N)-dimensional Planck scale. [Preview Abstract] |
Friday, October 7, 2011 4:04PM - 4:16PM |
F3.00003: GEM Andy Jones Study of HV Dependent Response and Gain of GEM Prototype Detectors Using Particle Beams The Gas Electron Multiplier (GEM) technology was developed at the European Center for Nuclear and Particle Physics Research (CERN) in 1997. GEM can be used as a sensitive gap detector for a calorimeter to measure particle jet energy to the precision required for future linear collider experiments. The High Energy Physics Group at the University of Texas at Arlington has developed and tested a series of double-layer GEM detectors that are 30cm x 30cm for a Digital Hadron Calorimeter. The team exposed four 30cm x 30cm chambers to particle beams to characterize them. One of the prototype chambers utilizes the KPiX 13 bit readout system, developed by the Stanford Linear Accelerator Center (SLAC) team. In this talk, we will report the effects of varying the chamber voltage potential on beam response, gain and the efficiency. [Preview Abstract] |
Friday, October 7, 2011 4:16PM - 4:28PM |
F3.00004: Study of Position Dependence of GEM Prototype Detector Response and Gain Using Particle Beams Nam Tran, Danrae Pray, Safat Khaled, Seongtae Park, Jaehoon Yu The physics requirements at future International Linear Collider requires high precision measurements of jets of particles emerging from the collision. To meet this requirement, the University of Texas at Arlington High Energy Physics group has been developing the Digital Hadron Calorimeter for the future International Linear Collider using Gas Electron Multiplier (GEM) technology. The group has successfully constructed prototypes of various sizes from 10cmx10cm to 30cmx30cm and characterized them on the bench. The team recently conducted a beam test of four 30cmx30cm prototype GEM chambers at Fermi National Accelerator Laboratory. In this talk, we present the result of the beam test data analysis, in particular the position dependence of chamber responses and gains to understand the uniformity of the prototype chamber performance. [Preview Abstract] |
Friday, October 7, 2011 4:28PM - 4:40PM |
F3.00005: Stress Management in TAMU3, a 14 Tesla Nb$_{3}$Sn Dipole Eddie Holik III, Christopher Benson, Nick Diaczenko, Tim Elliott, Ray Garrison, Andrew Jaisle, Alfred McInturff, Peter McIntyre, Dior Sattarov The Accelerator Research Laboratory at Texas A{\&}M University is constructing TAMU3, a model dipole which implements Stress Management within its windings to prevent strain degradation of advanced superconductors under large Lorentz forces. A pier-and-beam support structure is integrated within the windings to intercept Lorentz stress from the inner windings and bypass it around the outer windings. TAMU3 will be the first rendering into practice of Stress Management and may open the way to fields of 16 Tesla and beyond for future hadron colliders, muon colliders, and other applications. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700