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Felicia Krauss03/10/2018, 16:00Invited talk
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Marc Schumann03/10/2018, 17:30Lecture
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Marc Schumann04/10/2018, 09:00Lecture
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Achim Stahl04/10/2018, 11:00Lecture
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Achim Stahl04/10/2018, 16:00Lecture
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04/10/2018, 17:30
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Marc Schumann05/10/2018, 09:00Lecture
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Achim Stahl05/10/2018, 11:00Lecture
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Alexander Fulst (WWU Münster)05/10/2018, 16:00Participant talk
The Karlsruhe Tritium Neutrino (KATRIN) experiment is a model-independent measurement of the neutrino mass from the tritium $\beta$ decay spectrum, aiming for a sensitivity of $0.2 \frac{\mathrm{eV}}{\mathrm{c}^2}$ (90% C.L.). Electrons from the decay in the high-intensity windowless gaseous tritium source are analyzed in a high-resolution...
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Mr Patrick Meinhardt05/10/2018, 16:20Participant talk
Many astrophysical observations indicate that the major part of matter in the universe is dark. The hypothetical Weakly Interacting Massive Particle (WIMP), predicted by many BSM theories, is one of the most promising candidates. Liquid Xenon (LXe)-filled dual-phase time projection chambers (TPC) as a dark matter detectors are well established and set the most stringent limits for...
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Mr Lutz Althüser (IKP, Westfälische Wilhelms-Universität Münster)05/10/2018, 16:40Participant talk
The XENON Dark Matter Project uses a dual-phase xenon time projection chamber (TPC) for a direct detection of weakly interacting massive particles (WIMPs). The current operating step, XENON1T, is the most sensitive direct detection dark matter experiment in the world.
Therefore, the TPC is build to detect low intensity light signals, generated either directly by the recoil produced by the...
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Tobias Ziegler (ECAP)05/10/2018, 17:00Participant talk
The $\mbox{EXO-200}$ experiment searches for the neutrinoless double beta ($0\nu\beta\beta$) decay in $^{136}$Xe with an ultra-low background single-phase time projection chamber$~$(TPC) filled with 175$\,$kg isotopically enriched liquid xenon$~$(LXe). The detector has demonstrated good energy resolution and background rejection capabilities by simultaneously collecting scintillation light and...
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05/10/2018, 17:30
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Martin Erdmann06/10/2018, 09:00Invited talk
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Alexander Harnisch (TU Dortmund)06/10/2018, 16:00Participant talk
The IceCube Neutrino Observatory detects Cherenkov photons emitted by charged particles passing through the antarctic ice. The properties of light propagation in and around the detector must be well understood, to be able to learn about the interacting particles and their origin. This talk gives an overview of how to use in-situ light sources to derive ice parameters by performing gradient...
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Gerrit Wrede06/10/2018, 16:20Participant talk
The IceCube neutrino observatory is searching for point sources in the astrophysical neutrino flux. Relativistic muons created by muon-neutrinos offer a good angular resolution and are thus an ideal channel for the detection of points sources.
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Recurrent neural networks (RNNs) are a class of artificial neural networks that capture the dynamics of sequential data by recurrently applying the... -
Michael Moser (Friedrich-Alexander-Universität Erlangen-Nürnberg)06/10/2018, 16:40Participant talk
An important open question in neutrino physics is the unitarity of the PMNS matrix. Currently, the uncertainties on several matrix elements are too large in order to draw significant conclusions on the unitarity. This is mostly due to the low experimental statistics in the tau neutrino sector.
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KM3NeT-ORCA is a water Cherenkov detector under construction with several megatons of instrumented... -
Ms Victoria Tokareva (KIT)06/10/2018, 17:00Participant talk
An important prerequisite for performing a joint analysis of data from different experiments is a search for ways to integrate these data. This process includes mapping, i.e. finding a correspondence of observables between each other, establishing similarities and differences, and normalization, i.e. shifting measurement scales to allow comparison of corresponding normalized values for...
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06/10/2018, 17:30
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Luciano Rezzolla08/10/2018, 09:00Lecture
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Dainis Dravins (U. Lund)08/10/2018, 11:00
Much of the progress in astronomy is driven by improved imaging. In the optical, one tantalizing threshold will be the imaging of stellar surfaces. Bright stars subtend only a few milliarcseconds in the sky and for resolving them, the laws of diffraction dictate kilometer-scale optical facilities. This is very challenging to realize on the ground due to atmospheric turbulence, while space...
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Mr Ziwei OU (Institut de Physique Nucléaire d'Orsay, France)08/10/2018, 16:00Participant talk
PeVatrons are astrophysical sources which are supposed to accelerate charged
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particles up to PeV energies. Studying PeVatrons would help us to understand acceleration processes of cosmic rays and fundamental physics of the compact sources. The Cherenkov Telescope Array (CTA) has a broad energy range from 30 GeV to 300 TeV, which arise the possibility to detect Pevatron candidates through pion... -
Mr Philipp Julian Rauscher (Institute for Nuclear Physics Karlsruhe Institute of Technology)08/10/2018, 16:20Participant talk
The Pierre Auger Observatory in Argentina aims to survey properties of cosmic rays. The signal of the surface detector array is used to determine the energy of a cosmic ray. It is described by an NKG-type lateral distribution function. A global fit of the parameters on all data of the SD-array shall improve our empirical parameters.
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Peter Steinmüller08/10/2018, 16:40Participant talk
In coming years, an upgrade of the surface array IceTop with scintillators is foreseen. An additional installation of radio antennas integrated into the scintillation detector system would significantly improve the task of cosmic ray physics at the South Pole. In particular, it would allow the search for PeV gammas coming from the center of our Galaxy.
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A reasonable option for this array are... -
Felix Schlüter (KIT)08/10/2018, 17:00Participant talk
In recent years the observation of ultra high energy cosmic ray (UHECR) with coherent radio emission has become increasingly active in astroparticle physics.
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The detection of radio emission provides an independent measurement of the cosmic ray energy and mass. A precise reconstruction of these properties requires an accurate unfolding of the recorded signals.
In this talk a two-part approach... -
08/10/2018, 17:30
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Marc Hempel08/10/2018, 20:00Lecture
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Luciano Rezzolla09/10/2018, 09:00Lecture
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David Berge09/10/2018, 11:00Lecture
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Sarah Pieper09/10/2018, 16:00Participant talk
Luminescence is the emission of photons from a medium via the deexitation of atomic orbitals following an external excitation. It can be characterized using the parameters: light yield, emission spectrum, and decay time.
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It has been proposed that luminescence of water and ice can be used as a new detection channel by particle detectors that use water or ice as their target medium. These... -
Pia Friend09/10/2018, 16:20Participant talk
In 2005 the Cassini spacecraft discovered that Enceladus, one of Saturn‘s icy moons, not only exhibits liquid water under it‘s ice shell, but also is a geologically active body. Since then enceladus became one of the most interesting scientific targets in our solar system, especially for the search of extraterrestrial life.
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Geysers at Enceladus‘ south pole region proves that a salty ocean... -
Mr Alexander Kyriacou (Bergische Universtat Wuppertal)09/10/2018, 16:40Participant talk
Enceladus Explorer (EnEx) is a proposed DLR space probe to explore Saturn's moon Enceladus for signs of extraterrestrial life. Geyser eruptions at the south pole indicate the presence of a salt water ocean with hydrothermal vents below the moon’s ice shell, a possible home for extraterrestrial life. The envisioned EnEx probe would land at a safe distance to one of Enceladus' active geysers...
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Simone Garrappa (DESY)09/10/2018, 17:00
Observations performed by the Large Area Telescope (LAT) on board of the Fermi Gamma-ray Space Telescope around the IC170922A region revealed a flaring gamma-ray blazar, TXS 0506+056, in spatial and temporal coincidence with the neutrino event detected by the IceCube Neutrino Observatory. Archival searches of other historical, well-reconstructed high-energy neutrino events have revealed...
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09/10/2018, 17:30
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Luciano Rezzolla10/10/2018, 09:00Lecture
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David Berge10/10/2018, 11:00Lecture
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Mr Daniel Guderian (Uni Münster)10/10/2018, 16:00Participant talk
The multi-PMT Digital Optical Module is chosen to be the baseline concept for the future upgrade to the IceCube detector. It offers, amongst other properties, superior directional sensitivity and larger effective volume when compared to the current sensors. Due to tight energy budget restrictions in a multi-PMT design a power-efficient multi-level time-over-threshold (ToT) readout is the...
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Simon Strotmann (University of Wuppertal)10/10/2018, 16:20Participant talk
With the new instrumentation of the batch test facility at the University of Wuppertal for the characterization of photomultipliers for the SSD-Upgrade of the Pierre Auger Observatory we will measure the relevant quantities to ensure the required operation in the field. We will have the possibility to determine the homogeneity, dark current, linearity and pulse rise time of the first batch of...
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Alina Esfahani10/10/2018, 16:40Participant talk
The MAGIC telescopes on La Palma detect Cherenkov radiation induced by particle showers. Photomultiplier tubes (PMTs) are currently used as photodetectors. In order to extend the duty cycle of such telescopes and improve their general robustness the use of silicon based photodetectors (SiPMs) is tested.
As part of achieving a better understanding of operation of SiPMs in Imaging Atmospheric...
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Roxanne Turcotte (RWTH Aachen)10/10/2018, 17:00Participant talk
Following the success of the IceCube detector, an upgrade is planned for the upcoming years. To get a sufficiently large volume for this upgrade, the optical modules must be separated by larger distances. Due to the optical properties of ice, light signals are expected to deteriorate faster than acoustic signals. Hence, the importance of developing an acoustic device which could be integrated...
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Mr Robert Stein (DESY Zeuthen)10/10/2018, 17:20
Since the detection of high-energy cosmic neutrinos at the IceCube Neutrino Observatory in 2013, there has been an on-going search to find suitable transient or variable source candidates. Previous analyses testing core-collapse supernovae, GRBs and time-integrated blazar emission have lead to constraints disfavouring these sources as dominant contributors to the observed neutrino flux....
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Mrs Francesca Moglia10/10/2018, 17:30Invited talk
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Sergeant Stephan11/10/2018, 09:00Invited talk
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David Berge11/10/2018, 11:00Lecture
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Mr Mohammed Bouta (PMRL)
Nuclearites are lumps of strange quarks matter, the matter which may be the ground state of our universe. According to the theory, nuclearites may exist in cosmic rays reaching the Earth and so, they may hit the ANTARES detector or its alternatives. Their energy loss in atmosphere and water should help us to detect them at deep sea. Based on their number of photons emitted, nuclearites with...
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