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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
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DTSTART:20220101T000000
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DTSTART;TZID=UTC:20220616T120000
DTEND;TZID=UTC:20220616T130000
DTSTAMP:20260422T164838
CREATED:20220616T190938Z
LAST-MODIFIED:20220616T190938Z
UID:1903-1655380800-1655384400@rpm.physics.lbl.gov
SUMMARY:Anne Green (University of Nottingham) "Primordial Black Holes as a Dark Matter Candidate"
DESCRIPTION:ABSTRACT: \nDiverse astrophysical and cosmological observations indicate that most of the matter in the Universe is cold\, dark and non-baryonic. Traditionally the most popular dark matter candidates have been new elementary particles\, such as WIMPs and axions. However Primordial Black Holes (PBHs)\, black holes formed from over densities in the early Universe\, are another possibility. The discovery of gravitational waves from mergers of ~10 Solar mass black hole binaries by LIGO-Virgo has generated a surge in interest in PBH dark matter. I will overview the formation of PBHs\, the observational limits on their abundance and the key open questions in the field. \nhttp://physics.lbl.gov/rpm/index.php/events/
URL:https://rpm.physics.lbl.gov/event/anne-green-university-of-nottingham-primordial-black-holes-as-a-dark-matter-candidate/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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DTSTART;TZID=UTC:20220630T160000
DTEND;TZID=UTC:20220630T170000
DTSTAMP:20260422T164838
CREATED:20220630T002312Z
LAST-MODIFIED:20220630T002312Z
UID:1906-1656604800-1656608400@rpm.physics.lbl.gov
SUMMARY:Matt Kramer (LBNL) - "Measurement of sin²2θ₁₃ and Δm²ₑₑ from the Full Dataset of the Daya Bay Experiment"
DESCRIPTION:ABSTRACT: (This is a Hybrid/ZOOM Meeting)\nThe Daya Bay Reactor Neutrino Experiment was built to measure the smallest neutrino mixing angle\, θ₁₃\, using the oscillation of electron antineutrinos produced by the Daya Bay nuclear power complex in southern China. Using the rate and spectral shape of antineutrino events at multiple baselines from the reactors\, sin²2θ₁₃ is extracted along with the effective mass splitting Δm²ₑₑ. This talk describes\, step-by-step\, the latest oscillation analysis from our full dataset of ~5.5 million antineutrinos acquired over nearly a decade. In addition to the increase in statistics\, this analysis benefits from improvements in energy reconstruction and background subtraction. With an uncertainty of 2.8%\, this measurement of sin²2θ₁₃ is likely to remain the world’s most precise for the foreseeable future. \n\nZOOM Talk: https://lbnl.zoom.us/j/91782268585 \nTime: 4:00 PM \n\nHybrid Location: Conference Room Location: 50-5132
URL:https://rpm.physics.lbl.gov/event/matt-kramer-lbnl-measurement-of-sin%c2%b22%ce%b8%e2%82%81%e2%82%83-and-%ce%b4m%c2%b2%e2%82%91%e2%82%91-from-the-full-dataset-of-the-daya-bay-experiment/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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