182 citations · 296 across the 9 of their papers we have counts for
10 papers
Stability of Highly Hydrogenated Monolayer Graphene in Ultra-High Vacuum and in Air
Alice Apponi, Orlando Castellano, Daniele Paoloni +20
The stability of hydrogenated monolayer graphene was investigated via X-ray photoemission spectroscopy (XPS) for two different environmental conditions: ultra-high vacuum (UHV) and…
A Demonstration of Slowed Electron Drift for PTOLEMY
M. Farino, A. Tan, A. Apponi +58
To resolve the effective neutrino mass with an energy resolution of 50~meV, the PTOLEMY experiment has proposed a novel transverse electromagnetic filtering process. Substant…
Interim report for the International Muon Collider Collaboration (IMCC)
C. Accettura, S. Adrian, R. Agarwal +383
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implemen…
Detection of Low-Energy Electrons with Transition-Edge Sensors
Carlo Pepe, Benedetta Corcione, Francesco Pandolfi +9
We present the first detection of electrons with kinetic energy in the 100 eV range with transition-edge sensors (TESs). This has been achieved with a m Ti…
Absolute efficiency of a two-stage microchannel plate for electrons in the 30 - 900 eV energy range
A. Apponi, F. Pandolfi, I. Rago +3
We report on an apparatus able to measure the absolute detection efficiency of a detector for electrons in the 30 - 900 eV range. In particular, we discuss the characterisation of…
Heisenberg's uncertainty principle in the PTOLEMY project: a theory update
PTOLEMY Collaboration, A. Apponi, M. G. Betti +58
We discuss the consequences of the quantum uncertainty on the spectrum of the electron emitted by the -processes of a tritium atom bound to a graphene sheet. We analyze quantita…
Implementation and Optimization of the PTOLEMY Transverse Drift Electromagnetic Filter
A. Apponi, M. G. Betti, M. Borghesi +53
The PTOLEMY transverse drift filter is a new concept to enable precision analysis of the energy spectrum of electrons near the tritium beta-decay endpoint. This paper details the i…
Response of Windowless Silicon Avalanche Photo-Diodes to Electrons in the 90-900 eV Range
Alice Apponi, Gianluca Cavoto, Marco Iannone +5
We report on the characterization of the response of windowless silicon avalanche photo-diodes to electrons in the 90-900 eV energy range. The electrons were provided by a monoener…
Carbon nanotubes as anisotropic target for dark matter
G Cavoto, M G Betti, C Mariani +4
Directional detection of Dark Matter (DM) particles could be accomplished by studying either ion or electron recoils in large arrays of parallel carbon nanotubes. For instance, a M…
Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case
PTOLEMY collaboration, M. G. Betti, M. Biasotti +54
The PTOLEMY project aims to develop a scalable design for a Cosmic Neutrino Background (CNB) detector, the first of its kind and the only one conceived that can look directly at th…