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DTSTART:20220313T100000
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DTSTART;TZID=America/Los_Angeles:20221118T120000
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DTSTAMP:20260427T214129
CREATED:20221116T013539Z
LAST-MODIFIED:20221117T220553Z
UID:1304-1668772800-1668776400@inpa.lbl.gov
SUMMARY:SPEAKER: Daniel Kodroff (Penn State University) - TITLE: Background Modeling and First Results From The LUX-ZEPLIN Dark Matter Experiment
DESCRIPTION:This is a VIRTUAL Event \nTITLE: Background Modeling and First Results From The LUX-ZEPLIN Dark Matter Experiment \nABSTRACT: LUX-ZEPLIN (LZ) is a dark matter experiment located at the Sanford Underground Research Facility in South Dakota\, USA employing a 7 tonne active volume of liquid xenon in a dual-phase time projection chamber (TPC). It’s surrounded by an instrumented xenon “skin” region and gadolinium-loaded liquid scintillator outer detector\, primarily serving as active vetoes for gamma-ray and neutron backgrounds\, respectively\, all contained within an ultra-pure water tank. A comprehensive material\nassay and selection campaign for detector components\, along with a xenon purification campaign\, have further ensured an ultra-low background environment. These mitigations have allowed LZ to achieve a background rate of (63.0 ± 4.5) x 10−6 events/keVee/kg/day in the low energy region\, approximately 60 times lower than that of its predecessor LUX experiment. In this low background region\, LZ has recently set new world-leading limits for the spin-independent elastic scattering of nuclear recoils of Weakly Interacting Massive Particles (WIMPs) with masses above 9 GeV/c^2 using an exposure of 60 live days and a fiducial mass of 5.5 tonnes. This talk will provide an overview of the LZ detector and a description of its backgrounds with an emphasis on techniques to constrain these backgrounds in situ. I will also discuss the first results from LZ and briefly discuss its future science program. \nZOOM Information –  \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/91782268585 \nMeeting ID: 917 8226 8585
URL:https://inpa.lbl.gov/event/speaker-daniel-kodroff-penn-state-university-title-background-modeling-and-first-results-from-the-lux-zeplin-dark-matter-experiment/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
ORGANIZER;CN="Patrick McDonald":MAILTO:pvmcdonald@lbl.gov
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