Bulletin of the American Physical Society
2009 APS April Meeting
Volume 54, Number 4
Saturday–Tuesday, May 2–5, 2009; Denver, Colorado
Session G14: Future HEP Experiments |
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Sponsoring Units: DPF Chair: Dave Hedin, Northern Illinois University Room: Plaza Court 4 |
Sunday, May 3, 2009 8:30AM - 8:42AM |
G14.00001: Supernova Neutrino Physics at a Large Water Cherenkov Detector Kate Scholberg The planned 300 kton scale water Cherenkov detector for the Deep Underground Science and Engineering Laboratory will have unprecedented capability for detection of neutrinos from core collapse supernovae. This talk will describe the supernova neutrino physics sensitivity of this detector, on its own and in combination with other detectors worldwide. [Preview Abstract] |
Sunday, May 3, 2009 8:42AM - 8:54AM |
G14.00002: Correlations between cosmic muon tracks in the ATLAS inner detector and the muon spectrometer Lashkar Kashif Installation of the ATLAS detector at the CERN Large Hadron Collider is now complete and it is ready to take data. A substantial amount of cosmic muon data was collected in September-October 2008. To verify that all components of the detector are working properly, it is important to establish that we see the same tracks in all subdetectors. I will present a study of the correlations between cosmic tracks seen in the ATLAS inner detector and the muon spectrometer. I will discuss differences in track reconstruction in the two subdetectors, and show track parameter distributions in each. The main result is the correlation between track momentum and track phi and theta coordinates measured in the inner detector and the muon spectrometer. We see a high degree of correlation for all three parameters. Additionally, I will discuss the efficiency of the muon spectrometer with respect to the inner detector for cosmic muon tracks. [Preview Abstract] |
Sunday, May 3, 2009 8:54AM - 9:06AM |
G14.00003: Cosmic Muon Analysis with the CMS Detector Chang Liu Despite of the delay of physics collisions at the Large Hadron Collider (LHC), induced by the incidence in September 2008, the CMS collaboration is utilizing the commissioned detector to take large amounts of cosmic data. About 300 million cosmic events were recorded with the full detector and a magnetic field of 3.8~T turned on. The effort has provided significant statistics to study the detector performance and analyze the physics of cosmic rays. We present recent results from the cosmic muon analysis activities that were conducted using real data and dedicated cosmic Monte Carlo samples. Measurements of the cosmic muon charge ratio, the energy loss in the detector, the flux measurement, as well as other interesting studies were performed using dedicated reconstruction tools and have demonstrated good agreement between the real data and Monte Carlo samples. The cosmic muon analysis effort is not only a rehearsal for physics analysis at the LHC, but also provides interesting links to astrophysics and helps to validate the sophisticated simulation tools used. [Preview Abstract] |
Sunday, May 3, 2009 9:06AM - 9:18AM |
G14.00004: The Electron Detection Efficiency of the BeamCal at the Simulated ILC Gleb Oleinik, Uriel Nauenberg, Jack Gill We have produced measurements of the detection efficiency for electrons incident to the BeamCal in the forward region of the latest Silicon Detector (SiD) concept. SiD is an ongoing study that aims to create a detector concept to be incorporated into the International Linear Collider (ILC). We have employed the GEANT4 physics simulator to conduct in-depth simulations of the current SiD design, examining in particular its robustness in detecting events in the forward region. We require good detection efficiency in the forward region in order to veto two-photon events, which constitute a major background for several supersymmetric events. Obtaining good efficiency in this region is complicated by the massive beamstrahlung depositions there. Therefore, we have created several clustering algorithms designed to mitigate the effect of the beamstrahlung and to detect and measure the showers of electrons produced by two-photon events. We now have results for the detection efficiency with these algorithms. [Preview Abstract] |
Sunday, May 3, 2009 9:18AM - 9:30AM |
G14.00005: Beam Tests of an ILC Tail Catcher/Muon Tracker Prototype Based on Scintillator/SiPMs Kurt Francis The International Linear Collider (ILC), an electron-positron colliding beam accelerator for high energy physics, has been proposed as a new particle accelerator to complement the Large Hadron Collider (LHC). The high precision of the ILC will enable physicists to study in greater detail new physics discovered at the LHC. To help define the optimum design for a detector for the ILC, the Northern Illinois Center for Accelerator and Detector Development (NICADD) is a participant in the Calorimeter for the Linear Collider Experiment (CALICE) Collaboration's detector prototype. The CALICE detector includes a tail catcher/muon tracker (TCMT), designed and built at NIU, that is designed to test the use of a tail-catching subsystem to improve the resolution of the complete detector and to test new technologies such as extruded plastic scintillators and Silicon Photomultipliers(SiPM). This presentation demonstrates that the new technology represented by the SiPMs and the addition of a TCMT subsystem successfully captures energy lost due to practical limitations to the hadron calorimeters. [Preview Abstract] |
Sunday, May 3, 2009 9:30AM - 9:42AM |
G14.00006: Using constant fraction discrimination techniques to improve time resolution in CUORE Thomas Bloxham The CUORE experiment is a bolometric search for neutrinoless double beta decay to be based at LNGS in Italy. Both it, and the prototype Cuoricino whose operation has just been concluded, use Tellurium Oxide bolometer crystals as their active detectors. These bolometers are characterized by a slow pulse shape, across almost 4 seconds, and thus a poor reconstruction of initial event times. Using constant fraction discrimination techniques, it is possible to vastly improve the time resolution, and to reconstruct events or background occurring across multiple bolometers in a useful way. [Preview Abstract] |
Sunday, May 3, 2009 9:42AM - 9:54AM |
G14.00007: The Neutrino Beam for the Homestake-DUSEL Long Baseline Experiment Mary Bishai The proposed very long baseline neutrino oscillation experiment utilizing massive detectors at the deep Underground Science and Engineering Laboratory (DUSEL) requires a neutrino beam that is well matched to the physics goals and the performance of the DUSEL detectors. Fermi National Accelerator Laboratory (Fermilab) is located 1300km from the DUSEL location in Homestake Mine SD. This baseline has been shown to be well matched to the physics requirements of a next generation neutrino oscillation experiment. We present preliminary designs and performance studies for a high power DUSEL neutrino beam utilizing the 120 GeV Main Injector (MI) proton accelerator at Fermilab. These studies are based on the experience gained from the design and operation of the NuMI neutrino beamline which has been operating at the MI since 2005. [Preview Abstract] |
Sunday, May 3, 2009 9:54AM - 10:06AM |
G14.00008: Prospects for a Low Threshold Neutrino Experiment at the SNS Taritree Wongjirad A low-threshold neutrino scattering experiment at a high intensity stopped-pion neutrino source has the potential to measure coherent neutral current neutrino-nucleus elastic scattering. A promising prospect for this measurement is through a proposed noble-liquid-detector experiment, dubbed CLEAR (Coherent Low Energy A(Nuclear) Recoils), at the Spallation Neutron Source. This talk will describe the CLEAR detector, our study of backgrounds, and the experiment's physics reach. [Preview Abstract] |
Sunday, May 3, 2009 10:06AM - 10:18AM |
G14.00009: Long baseline neutrino oscillation experiments with massive detectors at DUSEL To be Determined We review the prospects of a very long baseline neutrino oscillation experiment based at the Deep Underground Science and Engineering Laboratory in Homestake, SD. The experiment is designed to utilize a high power neutrino beam from Fermi National Accelerator Laboratory at a baseline of 1300km. We present updated experimental sensitivities to CP violation effects in the neutrino sector and precision measurements of neutrino mixing matrix parameters from a simulation of the proposed 300 kton scale DUSEL water Cerenkov detector. [Preview Abstract] |
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