Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"astroparticle"”.
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Astroparticle physics with nuclear track detectors
This thesis is mainly about the search for exotic heavy particles -Intermediate Mass Magnetic Monopoles, Nuclearites and Q-balls with the SLIM experiment at the Chacaltaya High Altitude Laboratory (5230 m, Bolivia), establishing upper limits (90% CL) in the absence of candidates, which are among …
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Development of Low Gain Avalanche Detectors for Astroparticle Physics Experiments in Space
… to the development of LGADs technology for astroparticle physics experiments in space.
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Clestial harmonics - Applications of Angular Power Spectra to Problems in Astroparticle and Cosmological Physics
… inferring information on observables relevant to astroparticle physics and cosmology applications. Part I describes the work I developed at the University of Turin under the supervision of Prof. Nicolao Fornengo and Prof. Stefano Camera, collected in (Rubiola et al., 2024, 2025). It focuses on the …
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Alpha Spectroscopy in a Superheated Bubble Chamber and the Design of the PICO-500 Hydraulic Control Cart
… remains one of the most enigmatic phenomena in astroparticle physics, with compelling evidence for its existence despite a lack of explanation within the Standard Model. Even more puzzling is that it has thus far eluded direct detection via any known interaction mechanism. Weakly interacting …
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Emulating Radiation-Induced Defect Microstructures by Neutrons and Dark Matter Using Ions
… framework connecting materials science and astroparticle physics. This research can advance the fields of materials science and astroparticle physics by providing a novel framework for emulating radiation damage and detecting dark matter. The main methodology used was microstructural …
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Dark Matter Annihilation and the Observed Positron Excess
… of dark matter remains an unsolved mystery in astroparticle physics and cosmology. State of the art experiments are searching for dark matter using two different methods: direct detection, in which a WIMP-like particle interacts with a detector in the laboratory, and indirect detection, in …
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Statistical methods for the search of high energy neutrinos from galactic sources in KM3NeT and ANTARES telescopes
Neutrino astronomy is a very young branch of astroparticle physics. More generally, at very high energies, astronomy with photons becomes useless because they are absorbed on the low energy photons from the cosmic background radiation. This limits the path length of a 10 TeV photon, for example, to …
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Simulating the EUSO-SPB2 balloon flight train with Lagrangian mechanics
… balloon experiment that will fly two optical astroparticle telescopes; a fluorescence telescope and a Cherenkov telescope. These telescopes have a 0.1\degree pointing resolution requirement. The telescope of interest is the on-board Cherenkov telescope that rotates above/below the Earth's limb …
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Generic FPGA Preprocessing for Astrophysics Instruments in HLS
<p>FPGAs are widely deployed on high-energy astroparticle physics instruments to preprocess large volumes of streaming data from various sensors. Increasingly, these deployments are finding their way to space-borne instruments, where constraints on size, weight, and power (SWaP) require careful …
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Extreme universe space observatory on a super pressure balloon II fluorescence telescope on the ground and (briefly) in the air, The
… as a precursor for an eventual space-based astroparticle observatory such as the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). The Cherenkov Telescope, utilizing silicon photomultipliers with a fast digitization, designed to detect Earth-skimming neutrinos of astrophysical origin, …
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FROM DATA PRODUCTION TO SEARCH FOR GALACTIC COSMICRAY SOURCES WITH THE PIERRE AUGER OBSERVATORY
Astroparticle physics, at the crossroads of astrophysics and particle physics, investigates ultra-high-energy cosmic rays (UHECRs), the most energetic particles known in the Universe. Despite decades of research, their origins remain elusive. These particles are detected through extensive air …
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Feasibility of acoustic neutrino detection with the South Pole Acoustic Test Setup
Current experiments in astroparticle physics span over more than 13 orders of magnitude in energy and 28 orders of magnitude in flux. They make use of the detection of all types of messengers in order to learn more about the sources of these cosmic rays, the properties of the interstellar medium, …
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Characterization of electroluminescence signals from nuclear recoil events in the dual-phase argon Time Projection Chamber of the Red experiment with Convolutional Autoencoders
… of the Universe, remains a key mystery in astroparticle physics. Among the most compelling dark matter candidates are Weakly Interacting Massive Particles (WIMPs), whose thermal relic abundance from the Big Bang aligns with current observations. The Global Argon Dark Matter Collaboration …
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Stabilizing energy reconstructions of the surface detector at the Pierre Auger Observatory
At the Pierre Auger Observatory, ultra-high energy cosmic rays are measured through indirect measurements of the extensive air showers they induce. Accordingly, an energy reconstruction process must be undertaken. For the surface detector, the models utilized for energy reconstruction are empirical …
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Pulse-shape studies with coplanar grid CdZnTe detectors and searches for rare nuclear decays with the COBRA experiment
… at the intersection of nuclear, particle and astroparticle physics. Its main and evident feature is the explicit violation of the total lepton number, which is an accidentally conserved quantity in the Standard Model of particle physics, and would prove the Majorana nature of neutrinos. This, …
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Space qualification of the transition radiation detector of the AMS-02 experiment and indirect search for dark matter
… of unexpected discoveries at the frontiers of astroparticle physics.
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Innovative Methods for LEO Particle Experiments]{Innovative Methods and Instrumentation for Low-Energy Particle Experiments in Low-Earth Orbit Space Mission Analysis and Hardware R&D across the NUSES, CSES-Limadou and SPaRKLE Projects
… the entire scientific process of space-based astroparticle physics experiments, from initial design and concepts to the detailed modeling of instrument response and calibration strategies, followed by the analysis of flight data. This comprehensive perspective, spanning the full spectrum of …
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Multi-messenger constraints and pressure from dark matter annihilation into electron-positron pairs
Despite striking evidence for the existence of dark matter from astrophysical observations, dark matter has still escaped any direct or indirect detection until today. Therefore a proof for its existence and the revelation of its nature belongs to one of the most intriguing challenges of nowadays …
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Search for cosmic-ray antiparticles with bolloon-borne and space-borne experiments
This thesis discusses two different approaches for the measurement of cosmic-ray antiparticles in the GeV to TeV energy range. The first part studies the prospects of antiparticle flux measurements with the proposed PEBS detector. The project allots long duration balloon flights at one of Earth's …