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Dmitri Semikoz (APC, Paris)07/12/2020 09:00
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Ralph Engel (Karlsruhe Institute of Technology)07/12/2020 09:15
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Antoine Kouchner (Laboratoire APC)07/12/2020 09:45
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Ioana Maris07/12/2020 10:45
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Michael Unger (KIT)07/12/2020 11:15
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Dr Sergey Ostapchenko (Frankfurt Institute for Advanced Studies (FIAS))07/12/2020 11:45
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Glennys Farrar07/12/2020 14:00
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Franco Vazza07/12/2020 14:30
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Petr Tinyakov (Universite Libre de Bruxelles)07/12/2020 15:00
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Ralph Engel (Karlsruhe Institute of Technology)07/12/2020 15:30
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Kumiko Kotera (Institut d'Astrophysique de Paris)08/12/2020 09:00
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Anna Nelles08/12/2020 09:30
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Rosa Coniglione (INFN-Laboratori Nazionali del Sud)08/12/2020 10:30
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Zhan Dzhilkibaev08/12/2020 11:00
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Anatoli Fedynitch08/12/2020 11:30
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Véronique Van Elewyck (APC)08/12/2020 12:00
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Francis Halzen08/12/2020 13:30
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Giulia Illuminati08/12/2020 14:00
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Alexander Plavin08/12/2020 14:30
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Antonio Marinelli (Pisa physics department)08/12/2020 15:30
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Markus Ahlers08/12/2020 16:00
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Donald Fortescue08/12/2020 16:30
Donald Fortescue is a professor of art and design at the California College of the Arts in San Francisco. He creates sculptural instrument that engage with the natural world. His research investigates how scientific approaches to knowledge building and investigating with the “hidden” forces and processes that surround us can influence and engage with artistic approaches. For the last 5 years,...
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Giuseppe Di Sciascio09/12/2020 09:00
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Andrei Bykov (Ioffe Institute)09/12/2020 09:30
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Prof. Jörg Hörandel (Radboud University Nijmegen)09/12/2020 10:00
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Sergey Troitsky (INR, Moscow)09/12/2020 11:00
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Zhen Cao09/12/2020 11:30
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Felix Aharonian09/12/2020 12:00
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Felix Aharonian09/12/2020 12:30
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Viviana Niro09/12/2020 14:30
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Andrii Neronov (Geneva University)09/12/2020 15:00
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Michael Kachelriess09/12/2020 16:00
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Maurizio Spurio (Università Bologna)09/12/2020 16:30
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Francesco Vissani09/12/2020 17:00
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Andreas Haungs (KIT)10/12/2020 09:30
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Roberto Aloisio10/12/2020 10:00
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Markus Ahlers10/12/2020 10:30
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Sara Buson10/12/2020 11:00
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Oleg Kalashev10/12/2020 11:30
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Dmitri Semikoz (APC, Paris)10/12/2020 12:00
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Eli Waxman10/12/2020 13:30
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Kohta Murase (Penn State University)10/12/2020 14:00
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Justin Vandenbroucke10/12/2020 14:30
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Gwenhaël de Wasseige (APC)10/12/2020 15:30
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Cecilia Lunardini (Arizona State University)10/12/2020 16:00
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Robert Stein (DESY Zeuthen)10/12/2020 16:30
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Anna Franckowiak (Humboldt University, Berlin), Robert Stein10/12/2020 16:40
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Daniele Gaggero11/12/2020 09:00
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Damien Dornic (CPPM)11/12/2020 09:30
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Anna Franckowiak (Humboldt University, Berlin)11/12/2020 10:30
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Walter Winter (DESY Zeuthen)11/12/2020 11:00
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Foteini Oikonomou (ESO)11/12/2020 11:30
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Elisa Bernardini11/12/2020 12:00
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Mauricio Bustamante (DESY / Universität Würzburg)11/12/2020 14:00
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Arman Esmaili Taklimi (IPM (Institute for Studies in Theoretical Physics and Mathematics))11/12/2020 14:30
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Andrii Neronov (Geneva University)11/12/2020 15:00
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Dmitri Semikoz (APC, Paris)11/12/2020 15:30
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M. Paul Coppin (VUB)Poster
Gamma-Ray Bursts (GRBs) have historically been regarded as one of the prime potential sources of (ultra-high-energy) cosmic rays and astrophysical neutrinos. They can occur following the collapse of a super-massive star or the coalescence of a binary neutron star system. In both cases, a compact object is formed, from which a highly-relativistic jet is subsequently expulsed. In terms of their...
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Mme Ioulia Florou (National & Kapodistrian University of Athens)Poster
A small fraction of GRBs with available data down to soft X-rays ( ~0.5 keV) have been shown to feature a spectral break in the low energy part of their prompt emission spectrum. The overall spectral shape is consistent with optically thin synchrotron emission from a population of marginally fast cooling particles. If the radiating particles are electrons, this interpretation implies...
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M. Sergio Alves Garre (IFIC (UV-CSIC))Poster
ANTARES and Baikal-GVD are both Cherenkov neutrino telescopes located in
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the Northern Hemisphere. As a consequence, their fields of view overlap allowing
for a combined study of the sky. Since December of 2018, Baikal followed up
a total of 25 ANTARES alerts, and while no prompt coincidence was found, a
cascade mode search showed some events falling within an angular distance of
less than... -
Anatoli Fedynitch
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Piotr Kalaczyński (NCBJ Warsaw)Poster
The KM3NeT Collaboration has successfully deployed the first detection units of the next generation undersea neutrino telescope in the Mediterranean Sea in 2016 and 2017 at the two sites in Italy and in France. The sample of data collected between December 2016 and January 2020 has been used to measure the at mospheric muon rate at two different depths under the sea level: 3.5 km with ARCA and...
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RNO-G targets neutrino energies above 10 PeV. It uses the detection of the produced radio signals from the particle showers due to highly energetic neutrinos interacting in the ice. Because the attenuation length of the radio signal in ice is large O(1km), a sparse array of stations can be built, implying large ?effective volumes and sensitivities up to the highest energies. By 2023, 35...
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Poster
Astrophysical neutrinos in the energy range above 10PeV can deliver new insights into the origins and physics of ultra-high energy cosmic rays. Because of the low expected flux, to observe them , gigantic detectors with fiducial volumes of several cubic kilometers are necessary. Starting in the coming summer, the Radio Neutrino Observatory in Greenland (RNO-G) will overcome these challenges by...
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Dmitry Zaborov (INR RAS, Moscow, Russia)Poster
Baikal Gigaton Volume Detector (Baikal-GVD) is a 1 km$^3$ neutrino detector currently under construction in lake Baikal, Russia. The detector consists of several thousand optical sensors arranged on vertical strings. The strings are grouped into clusters of 8 strings each. Each cluster can operate as a stand-alone neutrino detector, providing an effective volume of $\sim$ 0.05 km$^3$. A fast...
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Viktoriya Dik (Joint Institute for Nuclear Research)Poster
High energy neutrino alerts observed by IceCube in Fall 2020, have been
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performed in fast regime using Baikal-GVD data first time. Search for
correlations between alerts and events reconstructed in two modes, track
and cascade, for the time windows \pm 1 hour and \pm 12 hours
does not indicate statistically significant excess of the number over
the expected number of background events.... -
Glennys Farrar
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Mihaela Baloi (West University of Timisoara)
Production of Z bosons in emission processes by neutrinos in the expanding de Sitter universe is studied. We use perturbative methods to investigate emission processes that are forbidden in flat space-time electro-weak theory by the energy and momentum conservation. The amplitude and probability for the spontaneous emission of a Z boson by a neutrino or an antineutrino are computed...
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Poster
The detection of a common source of gravitational waves (GW) and neutrinos would greatly help in the understanding of the dynamic of such astrophysical objects. It would also permit more prompt EM follow-up, as the coincidence surely improves the pointing to the source. Since 2015, LIGO/Virgo collaboration (LVC) is providing GW alerts, both in realtime (fully public since April 2019 and the...
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Doga Veske (Columbia University)Poster
Quantification of the significance of a candidate multi-messenger detection of cosmic events is an emerging need in the astrophysics and astronomy communities. All the searches and analyses done so far are on two messenger coincidences. However, with improving sensitivities of the detectors (i.e. upgrades in LIGO/Virgo/KAGRA, IceCube Gen2, KM3NeT, Vera Rubin Observatory, Ultrasat…), more than...
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Ghazala Lakel (Badji Mokhtar University of Annaba )Poster
Experiments like the Pierre Auger observatory, the Telescope Array and soon the space telescope JEM-EUSO are investigating ultra-high-energy cosmic rays (UHECRs) in order to determine their identity and their mysterious origin. These experiments are mainly based on indirect and simultaneous measurements of parameters such as the primary energy $E_0$ and the slant depth of the shower maximum...
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Poster
Neutrino telescopes have the potential to advance our knowledge of both astronomy and particle physics. The interpretation of the measured event rates from these experiments depends on knowledge of the interaction cross section of neutrinos. At high energies, the cross section is dominated by deep inelastic scattering off matter nucleons and scattering on atomic electrons via the Glashow...
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MARTA COLOMER MOLLA (APC/IFIC)Poster
Since 2015, fifty gravitational-wave (GW) signals have been identified and published in two catalogs, marking the growth of the GW astronomy. A single multi-messenger observation from a binary neutron star merger, with an electromagnetic and GW signals detected, has been achieved up to now. Even though compact binary mergers are promising candidates, no neutrino has been yet detected from...
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Poster
IceCube has detected many TeV-PeV neutrinos, but their astrophysical origins remain largely unknown. Motivated by the observed late-time X-ray/optical bumps in some gamma-ray bursts (GRBs), we examine the correlation between IceCube neutrinos and GRBs allowing delayed neutrinos about 1 day after the prompt gamma rays. Although we have not found any definitive correlation, up to 10% of the...
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Poster
The detection of a high-energy neutrino from the flaring blazar TXS 0506+056 and the subsequent discovery of a neutrino excess from the same direction have strengthened the hypothesis that blazars are cosmic neutrino sources. The lack, however, of gamma-ray flaring activity during the latter period challenges the standard scenario of correlated gamma-ray and high-energy neutrino emission in...
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Alexander Plavin
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Giulia Illuminati
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Poster
High-energy neutrinos are considered the smoking gun signature for identifying hadronic acceleration sites. High-energy cosmic rays interact with ambient matter or photon fields to produce charged and neutral pions. Neutral pions decay to gamma rays, but charged pions produce neutrinos in their decay chain. While high-energy gamma rays can also be produced in leptonic processes such as Inverse...
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Volodymyr Takhistov
Abstract: Millicharge particles with electric charge smaller than the electron, aside posing great theoretical interest, have been also considered as dark matter candidates. I will discuss production of energetic millicharge particles from cosmic accelerators as well as from cosmic rays colliding with the atmosphere. Large neutrino experiments, such as Super-Kamiokande, are particularly well...
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Simone Garrappa (DESY Zeuthen)Poster
In July 2019, the IceCube experiment, located in the South Pole, detected a 300 TeV neutrino from a direction consistent with PKS 1502+106, the fifteenth brightest known gamma-ray blazar detected by Fermi-LAT. Given the large redshift of 1.84, this source must have an extremely high intrinsic luminosity, and it has shown high variability in gamma-rays as well as in other bands during more...
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Spencer Griswold (University of Rochester)Poster
The next Galactic supernova will be a once-in-a-lifetime opportunity for multi-messenger astronomy. A core collapse will produce a neutrino burst visible hours to days before electromagnetic radiation from the explosion, so the burst will provide an early warning for optical follow-up and offer valuable insight about the proto-neutron star. Since local supernovae are exceedingly rare, it is...
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The direct detection of particle dark matter (DM) through its scattering with nucleons is of fundamental importance to understand the nature of DM. In this work, we propose that the high-energy neutrino detectors like IceCube can be used to uniquely probe the DM-nucleon cross-section for high-energy light DM with energy around PeV, up-scattered by the high-energy cosmic rays. We derive for the...
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Anna Nelles
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Poster
A new redshift effect was proposed in the literature. In this effect, the photon is red-shifted; additionally to cosmological, gravitational and Doppler effects; by its gravitational radiations due to the gravitational interaction of the photon with cosmic magnetic fields. This effect can have a significant contribution depending on the strength and wide presence of these magnetic fields in...
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Jorge TorresPoster
Neutrinos are unique messengers to the distant, high energy universe. As neutral, weakly interacting particles, neutrinos arrive from cosmic distances (>100 Mpc) unattenuated and undeflected. Because of their low fluxes and low cross sections, neutrinos of ultra-high energies (UHE, >10 PeV) remain undetected. The Askaryan Radio Array (ARA) is an experiment deployed at the South Pole searching...
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Francis Halzen
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Francesco Lucarelli (University of Geneva)Poster
After more than 100 years since their discovery, cosmic rays (CRs) are still one of the most intriguing open questions in astrophysics. Different astrophysical objects, such as black holes in active galaxies, gamma-ray bursts, supernova shocks, etc., have been proposed as sources of high-energy CRs, but any scientific attempt to track back the sites of their production and acceleration is...
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Raamis Hussain (IceCube)
The advent of gravitational wave and neutrino astronomy has led to an exciting era
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of multi-messenger astronomy. Identifying high-energy neutrino emission from
compact binary mergers could shed light on the sources of high-energy neutrino
emission as well as particle acceleration mechanisms in these compact binary
systems. The LIGO-Virgo Collaboration (LVC) has reported a total of 67... -
Poster
Weakly Interacting Massive Particles (WIMPs) are a broad class of dark matter (DM) candidates. Generically, WIMPs can have a non-zero cross section with the Standard Model (SM) particles. This allows WIMPs to scatter off large celestial bodies, and become gravitationally bound. These captured WIMPs can then co-annihilate into SM particles which can be seen by current telescopes. I will present...
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Dr Feifei Huang (CPPM)Poster
KM3NeT, consisting of ORCA and ARCA (for Oscillation and Astroparticle Research with Cosmics in the Abyss), is a multi-purpose cubic-kilometer neutrino observatory in construction in the Mediterranean Sea. Although ORCA and ARCA have different primary goals, both detectors can be used to do neutrino astronomy over a very wide energy range, from few GeV to few tens of PeV. Already few detection...
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Luigi Antonio Fusco (CPPM, Marseille)Poster
The composition in terms of nuclear species of the primary cosmic ray flux is largely uncertain in the knee region and above. The possibility of testing it in the measured flux of atmospheric leptons in very large volume Cherenkov detector such as IceCube and ANTARES has been tested in this contribution. Two possible models of cosmic ray composition have been used to produce pseudo-data sets...
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Poster
Blazar hadronic models have been developed in the past decades as an alternative to leptonic ones. In hadronic models the gamma-ray emission is associated with synchrotron emission by protons, and/or secondary leptons produced in proton-photon interactions. Together with photons, hadronic emission models predict the emission of neutrinos that are therefore the smoking gun for acceleration of...
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Poster
The Giant Radio Array for Neutrino Detection (GRAND) is a project dedicated to the radio detection of ultra-high energy cosmic rays, gamma rays, and neutrinos. It aims at deploying in total 200 000 antennas in about 20 sub-arrays, located in mountainous regions, with a combined area of 200 000 $\rm km^{2}$, making it the largest ground detector ever built. The objective is to detect inclined ...
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Poster
The High Altitude Water Cherenkov (HAWC) Observatory, located in Puebla, Mexico, has observed many sources emitting gamma rays above 100 TeV. These objects appear to come from a wide variety of source classes: pulsar wind nebulae such as the Crab Nebula; unidentified objects such as MGRO J1908+06; and at least one superbubble containing freshly accelerated cosmic rays originating from a...
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Antonio Capanema (Pontifical Catholic University of Rio de Janeiro)Poster
Uncovering the sources of the astrophysical neutrinos observed by IceCube has been one of the most daunting challenges of neutrino astronomy since their discovery in 2013. By taking advantage of the multimessenger nature of these sources, it is possible to extract important information from them. In particular, we expect their production of TeV-PeV neutrinos to be accompanied by a $\gamma$-ray...
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Simon De Kockere (IIHE - VUB), M. Enrique Huesca Santiago (IIHE - VUB), Dr Vesna Lukic (IIHE - VUB), Dr Katharine Mulrey (IIHE - VUB), M. Cade Sbrocco (Ohio State University), Mme Rose Stanley (IIHE - VUB), M. Dieder Van den Broeck (IIHE - VUB)Poster
The Radar Echo Telescope for Neutrinos (RET-N) project aims to detect astrophysical neutrinos with energies of 10 PeV (10$^{16}$ eV) and above using the radar echo technique. The results of SLAC experiment T-576 show that a high-energy neutrino interacting in a dense medium like ice will create a short-lived plasma with the ability to reflect incoming radio waves. By detecting the reflection...
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MARTA COLOMER MOLLA (APC/IFIC)
A multi-messenger observation of the next Galactic Core Collapse Supernova (CCSN) will help understanding the different physical phenomena involved in these energetic explosions. Measuring the time of arrival of neutrinos with a good precision is crucial for the identification of the CCSN, the reconstruction of its sky location and thus the rapid identification of an electromagnetic and/or...
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Kumiko Kotera (Institut d'Astrophysique de Paris)
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Zhan Dzhilkibaev
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Rosa Coniglione (INFN-Laboratori Nazionali del Sud)
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Alexis Coleiro (APC / Université Paris Diderot)
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