Christoph Wiesinger
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View article: Investigation of electron backscattering on silicon drift detectors for the sterile neutrino search with TRISTAN
Investigation of electron backscattering on silicon drift detectors for the sterile neutrino search with TRISTAN Open
Sterile neutrinos are hypothetical particles in the minimal extension of the Standard Model of Particle Physics. They could be viable dark matter candidates if they have a mass in the keV range. The Karlsruhe tritium neutrino (KATRIN) expe…
View article: The MONUMENT Experiment: Ordinary Muon Capture studies for 0$νββ$ decay
The MONUMENT Experiment: Ordinary Muon Capture studies for 0$νββ$ decay Open
The MONUMENT experiment measures ordinary muon capture (OMC) on isotopes relevant for neutrinoless double-beta (0$νββ$) decay and nuclear astrophysics. OMC is a particularly attractive tool for improving the theoretical description of 0$νβ…
View article: Constraining the $^{77(m)}$Ge Production with GERDA Data and Implications for LEGEND-1000
Constraining the $^{77(m)}$Ge Production with GERDA Data and Implications for LEGEND-1000 Open
The delayed decay of $^{77(\\mathrm{m})}$Ge, produced by neutron capture on $^{76}$Ge, is a potential background for Germanium based neutrinoless double beta decay search experiments such as GERDA or the future LEGEND-1000 experiment.\nIn …
View article: The cosmic muon-induced background for the LEGEND-1000 alternative site at LNGS
The cosmic muon-induced background for the LEGEND-1000 alternative site at LNGS Open
The in-situ production of long-lived radio-isotopes by cosmic muon interactions may generate a non-negligible background for rare event searches in the deep subsurface. The delayed decay of 77(m) Ge has been identified as the dominant in-s…
View article: Liquid Argon Instrumentation and Monitoring in LEGEND-200
Liquid Argon Instrumentation and Monitoring in LEGEND-200 Open
LEGEND is the next-generation experiment searching for the neutrinoless double beta decay in 76 Ge. The first stage, LEGEND-200, takes over the cryogenic infrastructure of GERDA at LNGS: an instrumented water tank surrounding a 64 m 3 liqu…
View article: The impact of digital contact tracing on the SARS-CoV-2 pandemic - a comprehensive modelling study
The impact of digital contact tracing on the SARS-CoV-2 pandemic - a comprehensive modelling study Open
Contact tracing is one of several strategies employed in many countries to curb the spread of SARS-CoV-2. Digital contact tracing (DCT) uses tools such as cell-phone applications to improve tracing speed and reach. We model the impact of D…
View article: Digital Contact Tracing Service: An improved decentralized design for privacy and effectiveness
Digital Contact Tracing Service: An improved decentralized design for privacy and effectiveness Open
We propose a decentralized digital contact tracing service that preserves the users' privacy by design while complying to the highest security standards. Our approach is based on Bluetooth and measures actual encounters of people, the cont…
View article: Post-upgrade performance of GERDA Phase II
Post-upgrade performance of GERDA Phase II Open
Excellent spectroscopic performance, event topology information and outstanding radiopurity are unique properties of HPGe detectors that facilitate the search for 0 vββ decay of 76 Ge. A detection of this process would shed light onto phys…
View article: Searching for neutrinoless double beta decay with GERDA
Searching for neutrinoless double beta decay with GERDA Open
The GERmanium Detector Array (Gerda) experiment located at the INFN Gran Sasso Laboratory (Italy), is looking for the neutrinoless double beta decay of 76 Ge, by using high-purity germanium detectors made from isotopically enriched materia…
View article: Recent results from GERDA Phase II
Recent results from GERDA Phase II Open
The combination of an ultra-low background environment with active background suppression techniques allows GERDA (GERmanium Detector Array) to perform a background-free search for neutrinoless double beta decay of $^{76}$Ge. GERDA is loca…
View article: Virtual Depth By Active Background Suppression: The Cosmic Muon Induced Background Of Gerda Phase Ii
Virtual Depth By Active Background Suppression: The Cosmic Muon Induced Background Of Gerda Phase Ii Open
In-situ production of long-lived isotopes by cosmic muon interactions may generate a non-negligible background for deep underground rare event searches. Previous Monte Carlo studies for the GERDA experiment at LNGS identified the delayed d…
View article: Searching for neutrinoless double beta decay with GERDA
Searching for neutrinoless double beta decay with GERDA Open
The GERmanium Detector Array (GERDA) experiment located at the INFN Gran Sasso Laboratory (Italy), is looking for the neutrinoless double beta decay of Ge76, by using high-purity germanium detectors made from isotopically enriched material…
View article: Optical fiber read-out for liquid argon scintillation light
Optical fiber read-out for liquid argon scintillation light Open
In this paper we describe the performance of a light detector for Ar scintillation light made of wavelength-shifting (WLS) fibers connected to Silicon-Photomultipliers (SiPM). The setup was conceived to be used as anti-Compton veto for hig…