Bulletin of the American Physical Society
2008 APS April Meeting and HEDP/HEDLA Meeting
Volume 53, Number 5
Friday–Tuesday, April 11–15, 2008; St. Louis, Missouri
Session W13: Neutrinos III |
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Sponsoring Units: DNP Chair: Zelimir Djurcic, Columbia University Room: Hyatt Regency St. Louis Riverfront (formerly Adam's Mark Hotel), St. Louis F |
Tuesday, April 15, 2008 10:45AM - 10:57AM |
W13.00001: Deconstruction of atmospheric neutrino oscillation data David Ernst, Jesus Escamilla, David Latimer Atmospheric neutrinos are statistically the most important subset of neutrino oscillation data and they cover a range of L/E values that span four orders of magnitude. However, atmospheric data is the most complex to analyze because the source is neutrinos produced in the atmosphere by cosmic rays and because this data is the only data which measures the direction of the created lepton. We examine bin by bin the average and rms values of the physics parameters associated with each bin and thus ascribe the importance of each bin for determining the oscillation parameters, including theta{\_}13. [Preview Abstract] |
Tuesday, April 15, 2008 10:57AM - 11:09AM |
W13.00002: Neutrino-anti-neutrino analysis of atmospheric data Jesus Escamilla, David Latimer, David Ernst To date all atmospheric neutrino oscillation data does not discriminate between neutrinos and anti-neutrinos. We investigate the possibility of performing an analysis using realistic hypothetical data that distinguishes neutrinos from anti-neutrinos. This allows us to examine in more detail the role of the MSW effect and CP violation. This will provide guidance for future possible experiments. [Preview Abstract] |
Tuesday, April 15, 2008 11:09AM - 11:21AM |
W13.00003: Neutrinos from a black hole-neutron star merger Rebecca Surman, Gail McLaughlin A possible progenitor of short-duration gamma-ray bursts is the merger of a black hole and a neutron star in a binary system. The collision is thought to form a black hole surrounded by a rapidly accreting disk of debris. This accretion disk powers the burst, and its outflows are likely the site of interesting nucleosynthesis. If such a merger were to happen in our galaxy, the neutrinos from the accretion disk would be detectable on Earth. Here we examine the role of neutrinos in the black hole-neutron star merger scenario. We begin with the results of a three dimensional numerical model of a black hole-neutron star merger and calculate the neutrino and antineutrino fluxes emitted from the resulting accretion disk. We then discuss the impact of the neutrinos on the system, focusing on their influence on the outflow nucleosynthesis. [Preview Abstract] |
Tuesday, April 15, 2008 11:21AM - 11:33AM |
W13.00004: Magnetic Moment of Massive Neutrinos in Thermal Background Samina Masood We compare the magnetic moment of neutrinos carrying different type of mass in hot and dense media. The background effects on the magnetic moment of neutrinos are shown to depend on the type of neutrino mass. We compare the magnetic moment for the same value of temperature and density for Dirac and Majorana type of neutrino. Background effects are shown to be more important in the very early universe. [Preview Abstract] |
Tuesday, April 15, 2008 11:33AM - 11:45AM |
W13.00005: ABSTRACT WITHDRAWN |
Tuesday, April 15, 2008 11:45AM - 11:57AM |
W13.00006: ABSTRACT WITHDRAWN |
Tuesday, April 15, 2008 11:57AM - 12:09PM |
W13.00007: ABSTRACT WITHDRAWN |
Tuesday, April 15, 2008 12:09PM - 12:21PM |
W13.00008: ABSTRACT WITHDRAWN |
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