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DTSTART;TZID=America/Los_Angeles:20200918T120000
DTEND;TZID=America/Los_Angeles:20200918T130000
DTSTAMP:20260429T083514
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UID:867-1600430400-1600434000@inpa.lbl.gov
SUMMARY:VIRTUAL INPA SEMINAR – Stefan Schoppmann (UC Berkeley)
DESCRIPTION:Speaker: Stefan Schoppmann (UC Berkeley)\n\n\nTitle: the STEREO Experiment: Search for Sterile Neutrinos \nAbstract: In recent years\, two unsolved anomalies have appeared from the study of reactor neutrinos: the reactor antineutrino anomaly being related to the absolute neutrino flux\, and the energy spectral shape anomaly. By conducting measurements of reactor neutrinos at very short baselines from a highly enriched uranium reactor\, both anomalies can be addressed simultaneously. \nSTEREO is a liquid-scintintillator-based experiment located at a short ~10 m baseline from the ILL research reactor in Grenoble\, France. Its primary objective is the search for energy and baseline dependent disappearance patterns of reactor neutrinos\, which would indicate that the reactor antineutrino anomaly could be caused by neutrino oscillations towards sterile neutrinos. Its second objective is to investigate whether highly enriched uranium reactors show the same energy spectral distortions of neutrinos as lowly enriched reactors. Due to the small overburden of 15 m.w.e. and the high ambient neutron flux in the reactor hall\, STEREO’s scintillator has to meet special requirements in terms of particle identification and discrimination. \nIn this presentation\, latest results of the STEREO experiment regarding its oscillation\, absolute rate\, and spectral shape analyses using 179 days of reactor-on data are discussed. A highlight is set on STEREO’s liquid scintillator and its particle ID capabilities. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/99615784061?pwd=Q2tTcFplMDNuQzFjU0I1N3B5N1Nxdz09 \nMeeting ID: 996 1578 4061\nPasscode: 884122
URL:https://inpa.lbl.gov/event/virtual-inpa-seminar-stefan-schoppmann-uc-berkeley/
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DTSTART;TZID=America/Los_Angeles:20200925T120000
DTEND;TZID=America/Los_Angeles:20200925T130000
DTSTAMP:20260429T083514
CREATED:20200916T022134Z
LAST-MODIFIED:20200916T022134Z
UID:872-1601035200-1601038800@inpa.lbl.gov
SUMMARY:VIRTUAL INPA SEMINAR | Stephane Zsoldos (UCB)
DESCRIPTION:Speaker: Stephane Zsoldos (UC Berkeley) \nTitle: An overview of the Hyper-Kamiokande experiment \nAbstract: \nHyper-Kamiokande\, which started construction in April 2020\, is a next generation underground water Cherenkov detector\, based on the highly successful Super-Kamiokande experiment. It will serve as a far detector\, 295 km away\, of a long baseline neutrino experiment for the upgraded J-PARC beam in Japan. It will also be a detector capable of observing — far beyond the sensitivity of the Super-Kamiokande detector — proton decay\, atmospheric neutrinos\, and neutrinos from astronomical sources. \nAlthough a wide and rich research program for neutrinos at both low and high-E\, I will\, after introducing and reviewing the general status of the experiment\, focus on the oscillation physics\, especially on the two main unanswered questions\, the hierarchy of the neutrino mass eigenstates and the value of the leptonic delta CP phase. Especially\, I will discuss Hyper-Kamiokande’s sensitivity using a joint atmospheric and accelerator fit to unravel part of these interrogations. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/96424252212?pwd=bzVXMm5rN2thVUFKMnNNdG1FUUpPQT09 \nMeeting ID: 964 2425 2212\nPasscode: 974805
URL:https://inpa.lbl.gov/event/virtual-inpa-seminar-stephane-zsoldos-ucb/
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