Mariusz Wojcik

Construction and characterisation of the DarkSide-20k veto silicon photo-multiplier tiles

Fabio Acerbi, Pushparaj Adhikari, P. Agnes, Iftikhar Ahmad et autres

Abstract Silicon photo-multipliers (SiPMs) are state-of-the-art sensors capable of detecting a single photoelectron under cryogenic conditions, with potentially lower radioactivity than widely used photomultiplier tubes. The DarkSide-20k experiment, designed to perform direct dark matter searches using liquid argon as the target material, …

it, ca, br, us, de, es, fr, gb, pl (code pays fourni par la source)

The Darkside-20k Data Acquisition System

Fabio Acerbi, Pushparaj Adhikari, P. Agnes, Iftikhar Ahmad et autres

Abstract DarkSide-20k is a Weakly Interacting Massive Particles (WIMPs) search experiment using liquid argon as a target, designed to perform a background-free search for dark matter with unprecedented sensitivity, and is currently under construction at INFN Laboratori Nazionali del Gran Sasso, Italy. …

it, ca, pl, br, us, de, sk, es, fr, gb (code pays fourni par la source)

Sensitivity to low-mass WIMPs with an improved liquid argon ionization response model within the DarkSide program

Fabio Acerbi, P. Adhikari, P. Agnes, Irshad Ahmad et autres

Dark matter detection experiments using liquid argon rely on a precise characterization of the ionization response to nuclear recoils, especially in the keV energy range relevant for light dark matter interactions. In this work, we present a comprehensive analysis that combines new …

it, ca, pl, br, us, ru, de, fr, es, gb, bg (code pays fourni par la source)

The Darkside-20k Data Acquisition System

Fabio Acerbi, Pushparaj Adhikari, P. Agnes, Iftikhar Ali Ahmad et autres

DarkSide-20k is a WIMP search experiment using liquid argon as a target, designed to perform a background-free search for dark matter with unprecedented sensitivity, and is currently under construction at INFN Laboratori Nazionali del Gran Sasso, Italy. The detector comprises a dual-phase …

Flow and thermal modelling of the argon volume in the DarkSide-20k TPC

Fabio Acerbi, P. Adhikari, P. Agnes, Ishaq Ahmad et autres

Abstract The DarkSide-20k dark matter experiment, currently under construction at LNGS, features a dual-phase time projection chamber (TPC) with a ∼ 50 t argon target from an underground well. At this scale, it is crucial to optimise the argon flow pattern for …

fr (code pays fourni par la source)

Fermionic sub-GeV Dark Matter from evaporating Primordial Black Holes at DarkSide-50

50 Collaboration, P. Agnes, I. F. Albuquerque, T. Alexander et autres

We present a search for boosted dark matter from Primordial Black Holes (PBH) evaporation using the DarkSide-50 ionization-signal-only dataset corresponding to the experiment's ($12202\pm180$) ${\rm kg\: d}$ exposure. We focus on evaporation of PBHs with masses in the range [$10^{14},\,10^{16}$] g producing …

fr (code pays fourni par la source)

How accurate are lattice models with Gaussian energy disorder in describing charge-carrier transport and reactions in amorphous organic semiconductors?

Mariusz Wojcik, Irmina Zawieja-Bartosinska

We model charge-carrier hopping transport and electron-hole recombination in realistic amorphous structures of different densities and use the obtained results to assess the quality of the lattice models with Gaussian energy disorder, which have been the main theoretical tool in the studies …

pl (code pays fourni par la source)

A new hybrid gadolinium nanoparticles-loaded polymeric material for neutron detection in rare event searches

Fabio Acerbi, P. Adhikari, P. Agnes, I. Ahmad et autres

Abstract Experiments aimed at direct searches for WIMP dark matter require highly effective reduction of backgrounds and control of any residual radioactive contamination. In particular, neutrons interacting with atomic nuclei represent an important class of backgrounds due to the expected similarity of …

fr (code pays fourni par la source)

Searches for new physics below twice the electron mass with GERDA

GERDA Collaboration, M. Agostini, A. Alexander, G. R. Araujo et autres

A search for full energy depositions from bosonic keV-scale dark matter candidates of masses between 65 keV and 1021 keV has been performed with data collected during Phase II of the GERmanium Detector Array (GERDA) experiment. Our analysis includes direct dark matter …

Long-term temporal stability of the DarkSide-50 dark matter detector

P. Agnes, I. F. M. Albuquerque, T. Alexander, M. Ave et autres

Abstract The stability of a dark matter detector on the timescale of a few years is a key requirement due to the large exposure needed to achieve a competitive sensitivity. It is especially crucial to enable the detector to potentially detect any …

it, us, br, gb (code pays fourni par la source)

Search for dark matter annual modulation with DarkSide-50

The DarkSide- Collaboration, P. Agnes, I. F. M. Albuquerque, T. Alexander et autres

Dark matter induced event rate in an Earth-based detector is predicted to show an annual modulation as a result of the Earth's orbital motion around the Sun. We searched for this modulation signature using the ionization signal of the DarkSide-50 liquid argon …

Elucidating the Role of Disorder in Charge-Carrier Photoseparation in Organic Solar Cells

Mariusz Wojcik, Irmina Zawieja-Bartosinska, Kazuhiko Seki

High Resolution Image Download MS PowerPoint Slide Using high-precision simulation calculations and a semianalytical theory, we finally resolve the controversy over the role of energetic disorder in geminate electron–hole photoseparation in organic solids. We demonstrate that in efficient photovoltaic systems, where the …

pl, jp (code pays fourni par la source)