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Michèle Heurs (AEI Hannover)04/10/2023, 16:00
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Ms Karen Terveer (ECAP)04/10/2023, 18:15
The LOw Frequency ARray (LOFAR) is a radio telescope with 38 stations of antenna fields across Europe, and it can detect the radio emission from cosmic-ray induced air showers via radio antennas in the frequency range from $30$ to $80 \ \text{MHz}$.
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A current reconstruction approach is determining the shower maximum $X_\text{max}$, which can be used to deduce the mass of the primary particle.... -
Kai Schmitz (University of Münster)05/10/2023, 09:00
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Caren Hagner (University of Hamburg)05/10/2023, 11:15
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Teresa Pernice05/10/2023, 16:15
The IceCube neutrino observatory instruments 1 $km^{3}$ of Antartic ice that represents the detection target and the light propagation medium. The IceCube detector instruments several thousands optical sensors, that detect Cherenkov light emitted from secondary particles (muons) created in neutrino interactions. From these photons, it is possible to reconstruct the muon (and therefore the...
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Frederike Apel05/10/2023, 16:45
The radiation from astrophysical sources such as blazars originates mainly from various particle interactions in the jet or in other regions of the blazar. The spectral energy distribution of a blazar shows a two-bump structure. While the low-energy emission is explained by synchrotron radiation of highly energetic electrons, the high-energy part can contain contributions from hadrons too....
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Ms Clara Escanuela NIeves (MPIK)05/10/2023, 17:00
The Cherenkov Telescope Array (CTA) is a next-generation atmospheric Cherenkov gamma-ray observation which will consist of two sites, one in Paranal and another one in La Palma, and three different types of telescopes (large, medium, and small size telescopes). CTA will be coordinated by the Array Control and Data Acquisition (ACADA). ACADA will collect event data from all of the CTA...
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Martin Schneider (ECAP, FAU)05/10/2023, 17:15
The Southern Wide-field Gamma-ray Observatory (SWGO) is a next-generation ground-based gamma-ray observatory. Currently in the R&D phase, the experiment is expected to have a large array of water Cherenkov detectors (WCD) placed at high elevations in South America. This will enable precise observations of the gamma-ray sky, mainly in the regime of ~100GeV up to the PeV region. The primary...
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Karim Sabri (Laboratoire Univers et Particules de Montpellier)05/10/2023, 17:45
A TeV halo is defined as the Inverse Compton emission from $e^\pm$
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diffusing in the Interstellar Medium, injected by a Pulsar Wind
Nebula (PWN). The pulsars surrounded by such halos are generally
older than those powering the TeV PWNe identified in the H.E.S.S
Galactic Plane Survey (HGPS). We revisit the HGPS sources in search
of halo candidates among coincidences between TeV components... -
Ms Chiara Jane Papior (Universität Siegen)05/10/2023, 18:30
Recently, several observatories have discovered photons of cosmic origin with maximum energies in the PeV ($10^{15}\,\text{eV}$) range. Photons at these energies might be produced as by-products from particle acceleration in so-called PeVatrons, which are widely assumed to be the source of a large part of galactic cosmic rays. The first PeVatron to be firmly established was the Crab nebula, a...
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Pavlo Plotko (Deutsches Elektronen-Synchrotron DESY)05/10/2023, 18:45
We present a detailed study of the contribution of low- and high-luminosity jetted Active Galactic Nuclei (AGN) populations to the spectrum and composition of ultra-high-energy cosmic rays (UHECRs) and the corresponding EeV neutrino flux. We find that two AGN populations should have different properties to explain the UHECR data. Our results show that the dominant contribution to the neutrino...
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Caren Hagner (University of Hamburg)06/10/2023, 09:00
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Kai Schmitz (University of Münster)06/10/2023, 11:15
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Caren Hagner (University of Hamburg)06/10/2023, 16:00
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Tiffany Luce06/10/2023, 17:45
As liquid xenon (LXe) dark matter detectors grow in size with each experiment, larger components come with larger challenges that new designs might solve. The Xenon Based Research Apparatus (XeBRA) is a small test platform in Freiburg where new components and configurations are explored. The test platform is now being setup to test a new kind of photosensor, a digital silicon photomultiplier,...
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Anna Eimer06/10/2023, 18:15
A precise understanding of the optical properties of the instrumented Antarctic ice sheet is crucial to the performance of optical Cherenkov telescopes such as the IceCube Neutrino Observatory and its planned successor, IceCube-Gen2.
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One complication arising from the large envisioned footprint of IceCube-Gen2 is the larger impact of the so-called ice tilt, which describes the undulation of... -
David Koke (Westfälische Wilhelms-Universität Münster, Germany)06/10/2023, 18:45
The XENONnT experiment, located underground at the Laboratori Nazionali del Gran Sasso, uses a total of 8.6t of high-purity liquid xenon to directly search for WIMP (weakly interacting massive particle) dark matter using a dual phase time projection chamber. A predominant part of the detector's low-energy background is caused by intrinsic contamination of the xenon with Rn-222, which is...
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Christian Stegmann06/10/2023, 20:00
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Jaroslav Storek (Karlsruher Institut für Technologie)07/10/2023, 09:00
In the KArlsruhe TRItium Neutrino (KATRIN) experiment we perform a precision measurement of the tritium beta decay spectrum. Our goal is to determine the neutrino mass by investigating the spectrum shape near the endpoint region at around $18.6$ keV. Recently we have published a new direct upper limit on neutrino mass of $0.8$ eV/c${}^2$ (90% C.L.) which has been obtained with only 5% of the...
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Philipp Schulte (Institut für Kernphysik, Universität Münster)07/10/2023, 09:15
On the various astrophysical and cosmological scales there is compelling evidence for the existence of dark matter beyond the constituents of our Standard Model of particle physics. WIMPs are among the favored candidates which would solve also other problems of the Standard Model. The DARWIN Collaboration and/or the XLZD Consortium plan a next generation xenon detector with 40t (or up to 80t)...
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Amala Augusthy (JGU Mainz)07/10/2023, 09:45
DISCO (Directionality in Scintillation Observer) is a lab-scale experiment built at the University of Mainz to characterize water-based liquid scintillators (WbLS) and demonstrate the ability to separate Cherenkov and Scintillation light. It consists of three main components: the muon tracker, the test cell, and the light detection system. The test cell can be filled with water, a...
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Dr Sayan Ghosh (Purdue University)07/10/2023, 10:30
Astrophysical neutrinos are a great tool to study physics beyond the standard model of particle physics (BSM), one such source being galactic supernovae (SN). While these neutrinos can be detected by traditional neutrino detectors via the production of their charged lepton partners, they undergo the neutral current (NC) Coherent Elastic Neutrino Nucleus Scattering (CE$\nu$NS) process. These...
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Kai Schmitz (University of Münster)07/10/2023, 11:15
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Philipp Mertsch (RWTH Aachen)09/10/2023, 09:00
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Philipp Mertsch (RWTH Aachen)09/10/2023, 11:15Lecture
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Anna Nelles09/10/2023, 16:00
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Anna Nelles09/10/2023, 17:45Lecture
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Wayne Springer (University of Utah)10/10/2023, 09:00
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Philipp Mertsch (RWTH Aachen)10/10/2023, 11:15
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Sarah Heim (DESY)10/10/2023, 16:00
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Paul-Simon Blomenkamp (Ruhr-Universität Bochum)10/10/2023, 17:45
\documentclass{article}
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\usepackage{graphicx} % Required for inserting images
\usepackage{hyperref}
\usepackage{siunitx}
\usepackage{gensymb}
\pagenumbering{gobble}
\DeclareSIUnit\parsec{pc}
\title{Analysing the Fermi Bubbles\
\large using improved models and datasets}
\author{Paul-Simon Blomenkamp\ ... -
Mr Luca Deval10/10/2023, 18:30
Ultra high energy cosmic rays are charged particles originating from various astrophysical sources and they exhibit anisotropic distributions in their arrival directions at Earth. Several studies have been conducted by the Pierre Auger Observatory on the arrival directions of such particles by employing a likelihood analysis which showed that the starburst galaxies (SBG) model have a better...
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Janning Meinert (Bergische Universität Wuppertal)10/10/2023, 18:45
The existing discrepancies between the observation of local and extraction of global cosmological parameters motivate an extension of the ΛCDM cosmological model. A proposed extension called SU(2)_CMB describes cosmic microwave background (CMB) photons with an SU(2) instead of a U(1) gauge group. This mitigates some of these tensions, for example 𝐻0, Ω𝑚, 𝜎8, pushes the recombination epoch to...
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Marc Hempel (PT.DESY)10/10/2023, 20:00
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Sarah Heim (DESY)11/10/2023, 09:00
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Anna Nelles11/10/2023, 11:15
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Alessandro Santoni (Pontificia Universidad Católica de Chile / TU Wien), Alex Soto11/10/2023, 16:15
Very Special Relativity (VSR) is a particular realization of Lorentz violation, which was presented for the first time by Cohen and Glashow in 2006 with the idea of introducing an alternative mechanism for neutrinos' masses. Since then, the ideas of VSR have been applied to many different areas. In this talk, after a short introduction to the key features of VSR, I will present its application...
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Maria Rosaria Musone (Università degli Studi della Campania "L. Vanvitelli ")11/10/2023, 16:30
Extreme high-energy peaked BL Lac objects (EHBLs) are an emerging class of Blazars with specific spectral properties, characterized by synchrotron emission peaking in the hard X-rays band and inverse compton emission peaking at TeV energies, possible sources energy extra-galactic neutrinos. The presence of a jet extending up to hundreds of Kiloparsec can guarantee the acceleration of CRs up to...
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Nick Jannis Schmeisser11/10/2023, 16:45
The new Faint Particle Trigger (FPT) in IceCube was developed with the intention of reaching a higher sensitivity for faint signals in the IceCube detector. Instead of customary triggers, which are based on local coincidences between multiple modules in the detector, it also uses isolated hits. Therefore it is especially suited for the search for faint signals in the detector. Examples are...
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Chloé Gaudu (Bergische Universität Wuppertal)11/10/2023, 17:00
Understanding the properties of extensive air showers (EAS) is of prime importance for extracting the properties of ultra high-energy cosmic rays from data, such as collected by the Pierre Auger Observatory. Inferring their primary energy and, most importantly, their primary mass relies on detailed comparisons of EAS measurements with corresponding air shower simulations. The largest...
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Jörn Wilms11/10/2023, 17:30
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Sarah Heim (DESY)12/10/2023, 09:00
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Christian Fromm (JMU Würzburg)12/10/2023, 11:15
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