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X-WR-CALDESC:Events for INPA
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TZOFFSETFROM:-0800
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DTSTART:20180311T100000
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DTSTART;TZID=America/Los_Angeles:20180406T120000
DTEND;TZID=America/Los_Angeles:20180406T130000
DTSTAMP:20260527T001805
CREATED:20180314T154601Z
LAST-MODIFIED:20180402T153516Z
UID:365-1523016000-1523019600@inpa.lbl.gov
SUMMARY:Vincent Fischer (UC Davis) - Accelerator Neutrino Neutron Interaction Experiment (ANNIE)
DESCRIPTION:The next generation of large scale neutrino detectors\, such as DUNE or Hyper-Kamiokande\, will heavily rely on a precise understanding of neutrino-nucleus interactions to reach their goal of measuring leptonic CP violation. Accounting for and reconstructing all final state particles\, especially neutrons\, created upon such interactions is thus crucial. This is the goal of the ANNIE experiment: Measuring the neutron abundance in the final state of neutrino-nucleus interactions in the energy domain relevant for oscillation experiments. With a volume of about 30 tons of pure water doped with gadolinium to enhance neutron tagging efficiency\, ANNIE will provide a measurement of the neutron yield of neutrino interactions as a function of the neutrino energy in the well-characterized Booster Neutrino Beam at Fermilab. The modularity of ANNIE will allow it to perform the very first live test of a novel kind of photodetectors called LAPPDs (Large Area Picosecond Photodetectors) in a neutrino detector to reconstruct neutrino interaction vertices through precision timing measurement. This seminar will describe the design and construction of the experiment\, along with the background measurement results from Phase~I and the plans for Phase~II.
URL:https://inpa.lbl.gov/event/vincent-fischer-uc-davis-tba-accelerator-neutrino-neutron-interaction-experiment-annie/
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180413T120000
DTEND;TZID=America/Los_Angeles:20180413T130000
DTSTAMP:20260527T001805
CREATED:20180402T154118Z
LAST-MODIFIED:20180410T173652Z
UID:376-1523620800-1523624400@inpa.lbl.gov
SUMMARY:Helion Mas du Bourboux ( University of Utah) - Baryonic Acoustic Oscillations in SDSS and DESI using the intergalactic medium absorption
DESCRIPTION:We present the measurement of the Baryonic Acoustic Oscillation (BAO) scale from the correlation between absorption in the intergalactic medium and the positions of galaxies and quasars in the SDSS data and in the desi simulations. \nWe use the absorption by neutral Hydrogen and by Magnesium-II observed in quasar spectra to trace the underlying matter density fluctuations. Combined with galaxies and quasars\, these two tracers allow to measure the 3d cross-correlation of matter from a redshift of z = 0.5 up to a redshift of z = 2.4.
URL:https://inpa.lbl.gov/event/helion-mas-du-bourboux-quasars/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180417T170000
DTEND;TZID=America/Los_Angeles:20180417T180000
DTSTAMP:20260527T001805
CREATED:20180411T184240Z
LAST-MODIFIED:20180416T171625Z
UID:390-1523984400-1523988000@inpa.lbl.gov
SUMMARY:Heidi Newberg (RPI) - Dwarf galaxies and dark matter in the Milky Way
DESCRIPTION:In the past fifteen years\, dozens of tidal streams of stars pulled from dwarf galaxies and globular clusters have been discovered in the Milky Way’s stellar halo. Recently\, it has been discovered that as the dwarf galaxies fall into our galaxy they perturb the stars in the disk\, causing wavelike disturbances that are seen in the densities and velocities of disk stars. These disturbances could be driving force behind spiral structure in galaxies. MilkyWay@home is a petaFLOPS scale volunteer computing platform that is mapping the densities of stars in the larger tidal streams in the stellar halo and using that information to measure the mass and density profile of both the stars and the dark matter in the progenitor dwarf galaxies\, using only information from the stars in the tidal streams. Eventually\, MilkyWay@home will fit the shape of the Galactic potential using tidal streams.
URL:https://inpa.lbl.gov/event/heidi-newbert-rpi-dwarf-galaxies-and-dark-matter-in-the-milky-way/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180420T120000
DTEND;TZID=America/Los_Angeles:20180420T130000
DTSTAMP:20260527T001805
CREATED:20180202T161329Z
LAST-MODIFIED:20180416T171943Z
UID:344-1524225600-1524229200@inpa.lbl.gov
SUMMARY:Rebecca Canning (Stanford) - Understanding Active Galactic Nuclei (AGN) in the most massive cosmic laboratories
DESCRIPTION:Supermassive Black Holes (SMBHs) lurk in the centers of all massive galaxies\, a fraction of these SMBHs are actively accreting and this can result in powerful outbursts which have important consequences for galaxy formation and evolution. However\, the conditions under which a SMBH becomes active and the manner in which it interacts with its environment are not well understood. Clusters of galaxies offer us wonderful cosmic laboratories in which we can observe these processes. I will discuss what observations of these massive galaxy clusters can tell us about the role of AGN feedback in both maintaining a delicate balance between heating and cooling and in searching for a casual link between SMBHs and galaxy co-evolution and detail the Cluster AGN Topography Survey which is undertaking a census of SMBH activity in massive galaxy clusters.
URL:https://inpa.lbl.gov/event/rebecca-canning-stanford/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180427T120000
DTEND;TZID=America/Los_Angeles:20180427T130000
DTSTAMP:20260527T001805
CREATED:20180314T154654Z
LAST-MODIFIED:20180425T170724Z
UID:367-1524830400-1524834000@inpa.lbl.gov
SUMMARY:Dan Dwyer (LBNL) - Demonstration of a true 3D micro-power sensor for liquid argon time projection chambers
DESCRIPTION:Time projection chambers (TPCs) based on the ionization of cryogenic liquids are a prominent tool for neutrino oscillation\, neutrinoless double beta decay\, and dark matter experiments. Over the past two years I have pursued the development of a novel charge readout sensor providing true 3D imaging of particle interactions in large-scale liquid argon TPCs. The sensor must meet stringent requirements on noise (<600 electron)\, power (<100 microwatts per channel)\, and scalability (digital multiplexing of 100\,000 channels per square meter)\, all at cryogenic temperatures. Such a scalable 3D micro-power sensor would enable operation of liquid argon TPCs in high-occupancy environments\, such as the near detector site of the Deep Underground Neutrino Experiment (DUNE). I will present my recent mad dash to a successful demonstration of 3D micro-power imaging of particle tracks in liquid argon\, and discuss what worked and what didn’t work along the way. I will also discuss the potential impact on upcoming neutrino measurements.
URL:https://inpa.lbl.gov/event/dan-dwyer-lbnl-tba-dune-upgrade-tpc-readout/
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