Bulletin of the American Physical Society
2006 APS April Meeting
Saturday–Tuesday, April 22–25, 2006; Dallas, TX
Session C12: Accelerator-Based Neutrino Experiments |
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Sponsoring Units: DPF Chair: Hugh Gallagher, Tufts University Room: Hyatt Regency Dallas Cumberland F |
Saturday, April 22, 2006 1:30PM - 1:42PM |
C12.00001: The Neutrino Beam for the MINOS (Main Injector Neutrino Oscillation Search) Experiment at Fermilab Mary Bishai On January 21$^{\rm st}$, 2005 the NuMI (Neutrinos at the Main Injector) neutrino beamline delivered its first neutrino beam to the MINOS experiment. During its first year of operation the NuMI beamline has delivered over $1 \times 10^{20}$ protons-on-target to the MINOS experiment. The NuMI proton beamline is one of the most heavily instrumented beamlines in high energy physics. This has enabled the MINOS experiment to characterize and study the primary proton beam characteristics as well as the secondary neutrino beam. We present a review of the NuMI beamline performance in 2005 and discuss the implications of beam performance on the MINOS experiment's neutrino physics program. [Preview Abstract] |
Saturday, April 22, 2006 1:42PM - 1:54PM |
C12.00002: Deep Inelastic Scattering Cross Section in MINOS Debdatta Bhattacharya The MINOS experiment, using the high-intensity NUMI beam, has been recording beam neutrino interactions in the near and the far detector since March 2005. The near detector data sample will have high statistics in the 1-30 GeV range. A measurement of charged-current neutrino deep inelastic scattering cross section using this sample will be discussed. The deep inelastic scattering cross section will allow a first measurement of the neutrino-iron structure functions in the low-Q2, high-x region. Understanding the neutrino cross section in the given energy range will be important both for MINOS and for the next generation neutrino oscillation experiments (T2K, Nova). [Preview Abstract] |
Saturday, April 22, 2006 1:54PM - 2:06PM |
C12.00003: $\nu_{\mu}\rightarrow\nu_{e}$ oscillation study in MINOS Tingjun Yang The MINOS (Main Injector Neutrino Oscillation Search) is a long baseline neutrino experiment using the NuMI neutrino beam to study neutrino oscillations. MINOS will be able to improve the limit on the neutrino mixing angle $\theta_{13}$ by searching for an electron neutrino appearance signal in the far detector from $\nu_{\mu}$ beams. We may make the first measuremeant of $\theta_{13}$ with improved proton intensity if $\theta_{13}$ is found to be sufficiently large. I will present the method to identify electron neutrinos and show the systematics analysis using the MINOS near detector data. [Preview Abstract] |
Saturday, April 22, 2006 2:06PM - 2:18PM |
C12.00004: Sterile Neutrino Analysis in MINOS Thomas Osiecki MINOS is a long baseline neutrino oscillation experiment based at Fermilab with an intense neutrino beam at its disposal. MINOS will produce the best measurement to date of $\Delta m^{2}$ using $\nu_{\mu} \to \nu_{\tau}$ oscillations and also has sensitivity to a sterile admixture from $\nu_{\mu} \to \nu_{sterile}$ oscillations using Neutral Current interactions. The basic sterile neurino analysis will be discussed and results from the Near Detector at Fermilab will also be presented. [Preview Abstract] |
Saturday, April 22, 2006 2:18PM - 2:30PM |
C12.00005: Latest Atmospheric Neutrino Results from MINOS Pedro Ochoa The latest atmospheric neutrino results based on 418 days of exposure of the MINOS Far Detector in Soudan, MN are presented. A fit to the observed L/E distribution excludes the null oscillation hypothesis at the 98\% level, and a charge ratio measurement for atmospheric neutrinos is obtained. These results constitute the first observation of atmospheric neutrino interactions for neutrinos and antineutrinos separately. [Preview Abstract] |
Saturday, April 22, 2006 2:30PM - 2:42PM |
C12.00006: A Detector 2 km Away from the T2K Neutrino Source Kate Scholberg We describe a detector array 2 km from the neutrino production target of the T2K experiment. At this distance, almost the same neutrino flux is measured as that seen at Super-Kamiokande, 295 km away. The detector consists of a 1 kton water Cherenkov detector, a muon range detector, and a 100 ton liquid argon TPC. We show how this detector may be used to study neutrino oscillations with the T2K beam and Super-Kamiokande. [Preview Abstract] |
Saturday, April 22, 2006 2:42PM - 2:54PM |
C12.00007: Liquid Argon Detectors for Long Baseline Neutrino Oscillation Physics Bonnie Fleming Long baseline, off-axis $\nu_e$ appearance programs are sensitive to the final unknowns in the MNS neutrino mixing matrix, $\theta_{13}$, a possible CP violating phase, $\delta$, and with sufficient baseline, the mass hierarchy. These experiments are difficult, though, and require the best detectors to do the physics. Liquid Argon Time Projection Chambers (LArTPC) are the best way to take advantage of new high intensity neutrino beams, such as the NuMI neutrino beamline at Fermilab, to do these experiments. The sensitivity of these detectors for this physics, their feasibility, as well as a program to utilize these detectors on the NuMI beamline at Fermilab will be presented. [Preview Abstract] |
Saturday, April 22, 2006 2:54PM - 3:06PM |
C12.00008: Liquid argon R \& D at Yale Matthew Harrison, Alessandro Curioni, Bonnie Fleming Liquid argon detectors are at the cutting edge of several present and/or proposed experimental activities in particle and astroparticle physics: neutrinos, Dark Matter, proton decay etc. Recently a great deal of attention has been paid to the scintillation light from liquid Ar. The Yale group is among the leaders of the US-based effort toward a multi-kiloton liquid argon time projection chamber for neutrino physics. Here we present results from the laboratory activities at Yale, in particular studies of light detection in liquid Ar. [Preview Abstract] |
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