Moritz Kellermann

ORCID: 0009-0004-5271-0378
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About
Contact & Profiles
Research Areas
  • Astrophysics and Cosmic Phenomena
  • Neutrino Physics Research
  • Dark Matter and Cosmic Phenomena
  • Radio Astronomy Observations and Technology
  • Particle physics theoretical and experimental studies
  • Radiation Detection and Scintillator Technologies
  • Gamma-ray bursts and supernovae
  • Pulsars and Gravitational Waves Research
  • Ionosphere and magnetosphere dynamics
  • Particle Detector Development and Performance
  • Radio Wave Propagation Studies
  • Gyrotron and Vacuum Electronics Research
  • Solar and Space Plasma Dynamics
  • Cosmology and Gravitation Theories
  • Atomic and Subatomic Physics Research
  • Superconducting and THz Device Technology
  • CCD and CMOS Imaging Sensors
  • Tropical and Extratropical Cyclones Research
  • Precipitation Measurement and Analysis
  • Advanced Semiconductor Detectors and Materials
  • Advanced Thermodynamic Systems and Engines
  • Particle accelerators and beam dynamics
  • Radio, Podcasts, and Digital Media
  • Photocathodes and Microchannel Plates
  • Atmospheric Ozone and Climate

Max Planck Institute for Physics
2021-2024

RWTH Aachen University
2020-2023

Providence College
2021

Clark Atlanta University
2021

The University of Texas at Arlington
2021

Southern University and Agricultural and Mechanical College
2021

University of Würzburg
2021

University of Alaska Anchorage
2021

Shanghai Jiao Tong University
2021

University of Geneva
2021

Sodium iodide (NaI)-based cryogenic scintillating calorimeters using quantum sensors for signal readout have shown promising first results toward a model-independent test of the annually modulating detected by DAMA/LIBRA dark matter experiment. The COSINUS Collaboration has previously reported on above-ground measurements dual-channel phonons and light based transition edge (TESs) that allows particle discrimination an event-by-event basis. In this article, we outline underground measurement...

10.1103/physrevd.110.043010 article EN cc-by Physical review. D/Physical review. D. 2024-08-05

The COSINUS direct dark matter experiment situated at Laboratori Nazionali del Gran Sasso in Italy is set to investigate the nature of annually modulating signal detected by <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>DAMA</a:mi><a:mo>/</a:mo><a:mi>LIBRA</a:mi></a:mrow></a:math> experiment. has already demonstrated that sodium iodide crystals can be operated mK temperature as cryogenic scintillating calorimeters using transition edge sensors, despite...

10.1103/physrevd.109.082003 article EN cc-by Physical review. D/Physical review. D. 2024-04-29

Abstract While neutrinos are often treated as a background for many dark matter experiments, these particles offer new avenue physics: the detection of core-collapse supernovae. Supernovae extremely energetic, violent and complex events that mark death massive stars. During their collapse stars emit large number in short burst. These carry 99% emitted energy which makes fundamental understanding This paper illustrates how COSINUS (Cryogenic Observatory SIgnatures seen Next-generation...

10.1088/1475-7516/2025/03/037 article EN cc-by Journal of Cosmology and Astroparticle Physics 2025-03-01

The cryogenic scintillating calorimeter technology devoted to rare event searches is reaching the sensitivity level required for hunt of dark matter-electron scatterings. Dark interactions in targets are expected stimulate emission single photons, each energy equal target electronic band gap. gap scintillators like <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>NaI</a:mi><a:mo>/</a:mo><a:mi>GaAs</a:mi></a:mrow></a:math> <c:math...

10.1103/physrevd.110.123012 article EN Physical review. D/Physical review. D. 2024-12-03

NaI(Tl) based scintillation detectors have become a staple in the field of direct dark matter searches, with DAMA-LIBRA experiment being standout for its reported observation an annually modulating WIMP-like signal which is contrast other results. In order to accurately calibrate energies WIMP-induced nuclear recoil signals, precise measurements quenching factor NaI crystals are essential each these experiments, as it well established that electron recoils and dissimilar light yields. this...

10.21468/scipostphysproc.12.028 article EN cc-by SciPost Physics Proceedings 2023-07-04

Sodium iodide (NaI) based cryogenic scintillating calorimeters using quantum sensors for signal read out have shown promising first results towards a model-independent test of the annually modulating detected by DAMA/LIBRA dark matter experiment. The COSINUS collaboration has previously reported on above-ground measurements dual channel readout phonons and light transition edge (TESs) that allows particle discrimination an event-by-event basis. In this letter, we outline underground...

10.48550/arxiv.2307.11139 preprint EN cc-by arXiv (Cornell University) 2023-01-01

Abstract COSINUS is a dark matter (DM) direct search experiment that uses sodium iodide (NaI) crystals as cryogenic calorimeters. Thanks to the low nuclear recoil energy threshold and event-by-event discrimination capability, will address long-standing DM claim made by DAMA/LIBRA collaboration. The currently under construction at Laboratori Nazionali del Gran Sasso, Italy, employs large cylindrical water tank passive shield meet required background rate. However, muon-induced neutrons can...

10.1140/epjc/s10052-024-12923-2 article EN cc-by The European Physical Journal C 2024-05-31

COSINUS is a dark matter (DM) direct search experiment that uses sodium iodide (NaI) crystals as cryogenic calorimeters. Thanks to the low nuclear recoil energy threshold and event-by-event discrimination capability, will address long-standing DM claim made by DAMA/LIBRA collaboration. The currently under construction at Laboratori Nazionali del Gran Sasso, Italy, employs large cylindrical water tank passive shield meet required background rate. However, muon-induced neutrons can mimic...

10.1140/epjc/s10052-024-12923-2 preprint EN arXiv (Cornell University) 2024-04-25

The COSINUS direct dark matter experiment situated at Laboratori Nazionali del Gran Sasso in Italy is set to investigate the nature of annually modulating signal detected by DAMA/LIBRA experiment. has already demonstrated that sodium iodide crystals can be operated mK temperature as cryogenic scintillating calorimeters using transition edge sensors, despite complication handling a hygroscopic and low melting point material. With results from new prototype, we show particle discrimination on...

10.48550/arxiv.2307.11066 preprint EN cc-by arXiv (Cornell University) 2023-01-01

The CSC (cryogenic scintillating calorimeter) technology devoted to rare event searches is reaching the sensitivity level required for hunt of dark matter-electron scatterings. Dark interactions in targets are expected stimulate emission single photons, each energy equal target electronic band gap. gap scintillators like NaI/GaAs O(eV). search this signal can be done by an array cryogenic light detectors with eV/sub-eV resolution. In work, we describe detection principle, detector response...

10.48550/arxiv.2402.01395 preprint EN arXiv (Cornell University) 2024-02-02

Abstract COSINUS is a new cryogenic observatory for rare event searches located in the Laboratori Nazionali del Gran Sasso Italy. COSINUS’s first goal to clarify whether signal detected by DAMA/LIBRA experiment originates from dark matter particle interactions or has different nature. To this aim, sodium iodide (NaI) scintillating calorimeters read out transition edge sensors (TESs) are developed. preserve NaI crystal TES fabrication process, implemented novel design, remoTES, where...

10.1007/s10909-024-03201-2 article EN cc-by Journal of Low Temperature Physics 2024-08-31

While neutrinos are often treated as a background for many dark matter experiments, these particles offer new avenue physics: the detection of core-collapse supernovae. Supernovae extremely energetic, violent and complex events that mark death massive stars. During their collapse stars emit large number in short burst. These carry 99\% emitted energy which makes fundamental understanding This paper illustrates how COSINUS (Cryogenic Observatory SIgnatures seen Next-generation Underground...

10.48550/arxiv.2409.09109 preprint EN arXiv (Cornell University) 2024-09-13

The increasing statistical significance of the DAMA/LIBRA annual modulation signal is a cause for tension in field dark matter direct detection. COSINUS experiment aims at model-independent cross-check claim, using NaI crystals operated as cryogenic scintillating calorimeters millikelvin temperatures. Such setup enables measurement phonon and scintillation light signals via Transition Edge Sensors (TESs) allows particle discrimination on an event-by-event basis. non-standard properties...

10.21468/scipostphysproc.12.033 article EN cc-by SciPost Physics Proceedings 2023-07-04

For over twenty-five years the DAMA/LIBRA experiment has reported an annual modulation signal that is consistent with a dark matter explanation. This is, currently, in tension null results observed by other searches utilize different target detectors. The COSINUS will perform model-independent cross-check of result using same material, NaI crystals, operated as scintillating calorimeters. By measuring both temperature and light crystals be able to distinguish between electron nuclear recoils...

10.21468/scipostphysproc.12.032 article EN cc-by SciPost Physics Proceedings 2023-07-04
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