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X-WR-CALNAME:Erlangen Centre for Astroparticle Physics
X-ORIGINAL-URL:https://ecap.nat.fau.de
X-WR-CALDESC:Events for Erlangen Centre for Astroparticle Physics
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TZID:Europe/Berlin
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TZOFFSETFROM:+0100
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TZNAME:CEST
DTSTART:20170326T010000
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DTSTART:20171029T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20170510T120000
DTEND;TZID=Europe/Berlin:20170510T130000
DTSTAMP:20260427T070435
CREATED:20170428T093141Z
LAST-MODIFIED:20170428T093141Z
UID:1530-1494417600-1494421200@ecap.nat.fau.de
SUMMARY:Stefan Geißelsöder - Pattern recognition and deep learning
DESCRIPTION:Algorithms from the field of pattern recognition are used throughout industry and academia. In particular machine learning algorithms have become an established technique in modern experimental physics\, for instance for the discrimination between desired measurements and background. In recent years\, the concept of deep learning has gained considerable attention in the machine learning community and beyond\, achieving record breaking performance for a multitude of tasks. This talk introduces some basics of pattern recognition and a few of the most popular approaches in deep learning\, namely convolutional neural networks (CNNs)\, recurrent neural networks and autoencoders. Results of first applications of CNNs for the KM3NeT neutrino telescope are also presented. They have been produced using the Keras framework with TensorFlow\, the open source tool from Google.
URL:https://ecap.nat.fau.de/index.php/event/seminar-2017-05-10-stefan-geisselsoeder/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20170517T120000
DTEND;TZID=Europe/Berlin:20170517T130000
DTSTAMP:20260427T070435
CREATED:20170320T180346Z
LAST-MODIFIED:20170320T180346Z
UID:809-1495022400-1495026000@ecap.nat.fau.de
SUMMARY:Kathrin Valerius - Status and prospects of direct neutrino mass searches: News from KATRIN and outlook on future projects
DESCRIPTION:Precision measurements of the kinematics of weak decays offer the only model- independent (direct) approach to investigate the absolute neutrino mass scale in a laboratory experiment. \nIn this talk I will review the status of direct neutrino mass searches based on beta decay of tritium and electron capture in 163Ho and give an overview of future experiments. The currently most mature technique relies on the spectroscopy of tritium beta decay near its kinematic endpoint at 18.6 keV. The KArlsruhe TRItium Neutrino experiment (KATRIN) is targeted at improving the sensitivity of this method by an order of magnitude to 200 meV/c2 (90% C.L.). To this end\, KATRIN utilises an ultra-luminous windowless gaseous tritium source and a high-resolution electrostatic spectrometer. In its recent „First Light“ campaign\, KATRIN has successfully inaugurated its full 70-m electron beam line and is now carrying out final commissioning works leading up to the start of tritium measurements. \nAt the same time\, novel approaches studying the electron capture spectrum in 163Ho with cryogenic microcalorimeters (notably\, ECHo\, HOLMES\, and NuMECS)\, or developing innovative techniques for tritium beta spectroscopy using radio-frequency detection of single electrons (Project 8) are gaining momentum. Experiments exploiting these new techniques are currently in the conceptual design and prototype characterisation phases\, with the aim of developing these complementary methods further towards a sub-eV sensitivity on the neutrino mass.
URL:https://ecap.nat.fau.de/index.php/event/seminar-2017-05-17-kathrin-valerius/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20170523T100000
DTEND;TZID=Europe/Berlin:20170523T110000
DTSTAMP:20260427T070435
CREATED:20170321T100740Z
LAST-MODIFIED:20170321T100740Z
UID:820-1495533600-1495537200@ecap.nat.fau.de
SUMMARY:Jakob van Santen - What's new in IceCube?
DESCRIPTION:The IceCube Neutrino Observatory is a 1 km3 optical Cherenkov detector embedded deep in the ice sheet that covers the geographic South Pole. Since its completion in the austral summer of 2010\, data from the observatory have provided the first evidence for a flux of extraterrestrial high-energy neutrinos of multiple flavors. At the same time\, the lack of significant clustering of neutrinos in space or time has provided constraints on the kinds of steady and transient sources that contribute to the flux. I will review current IceCube results\, provide an overview of ongoing efforts to sharpen them\, and briefly discuss plans for future detectors at the South Pole.
URL:https://ecap.nat.fau.de/index.php/event/seminar-2017-05-23-jakob-van-santen/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20170524T120000
DTEND;TZID=Europe/Berlin:20170524T130000
DTSTAMP:20260427T070435
CREATED:20170321T102900Z
LAST-MODIFIED:20170321T102900Z
UID:827-1495627200-1495630800@ecap.nat.fau.de
SUMMARY:Andrii Neronov - Galactic and extragalactic contributions to the astrophysical neutrino flux
DESCRIPTION:Spectral and anisotropy properties of IceCube astrophysical neutrino signals reveal evidence for a sizeable Galactic contribution to the neutrino flux in the Southern Hemisphere. I will review this evidence and relate it to the absence of Galactic component signature in the muon neutrino signal from the Northern sky. I will discuss implications of the possible Galactic component of the astrophysical neutrino flux for understanding of the cosmic ray content of the Milky Way and of the locally observed cosmic ray flux. I will also review possible options for the extragalactic astrophysical neutrino flux component which presumably dominates the signal in the Northern hemisphere.
URL:https://ecap.nat.fau.de/index.php/event/seminar-2017-05-24-andrii-neronov/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20170531T120000
DTEND;TZID=Europe/Berlin:20170531T130000
DTSTAMP:20260427T070435
CREATED:20170321T103304Z
LAST-MODIFIED:20170321T103304Z
UID:829-1496232000-1496235600@ecap.nat.fau.de
SUMMARY:Francesco Longo - GRB observations at High and Very High Energy
DESCRIPTION:Gamma Ray Bursts are among the most powerful astrophysical phenomena. In the recent past many observations shed light on their high-energy (HE\, E>10 MeV) emission properties. In the seminar I will describe the observations of GRBs by the currently operating HE satellites AGILE and Fermi. I will discuss the main observational properties of the detected bursts and their main theoretical interpretations. \nAt very high energies (E>100 GeV) the detection of GRBs by currently operating Imaging Atmospheric Cherenkov telescopes is still missing. Based on the observation of GRBs at lower energies\, I will discuss the prospects of GRB detection by future VHE facilities\, like the Cherenkov Telescope Array.
URL:https://ecap.nat.fau.de/index.php/event/seminar-2017-05-31-francesco-longo/
LOCATION:ECAP\, room 307\, Erwin-Rommel-Str 1\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
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