Publications (15)
Data reduction pipeline for the SuMAC millimeter-wave spectrometer at the LMT
A. M. Lapuente, P. S. Barry, M. Becerril-Tapia +28
We present the data reduction and analysis pipeline for the SuperSpec-MUSCAT Collaboration (SuMAC) along with several key science data products. In Summer 2025, SuperSpec on-chip s…
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…
The ELFIN Mission
V. Angelopoulos, E. Tsai, L. Bingley +79
The Electron Loss and Fields Investigation with a Spatio-Temporal Ambiguity-Resolving option (ELFIN-STAR, or simply: ELFIN) mission comprises two identical 3-Unit (3U) CubeSats on…
Direct detection of pure spin-current by x-ray pump-probe measurements
J. Li, L. R. Shelford, P. Shafer +8
By synchronizing a microwave waveform with the synchrotron x-ray pulses, we use the ferromagnetic resonance (FMR) of the Py (Ni81Fe19) layer in a Py/Cu/Cu75Mn25/Cu/Co multilayer to…
Ultra-high precision high voltage system for PTOLEMY
R. Ammendola, A. Apponi, G. Benato +63
The PTOLEMY project is prototyping a novel electromagnetic filter for high-precision spectroscopy, with the ultimate and ambitious long-term goal of detecting the cosmic neutr…
Correlation Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule
T. Barillot, O. Alexander, B. Cooper +46
The possibility of suddenly ionized molecules undergoing extremely fast electron hole dynamics prior to significant structural change was first recognized more than 20 years ago an…
Development of the Liquid Level Meters for the PandaX Dark Matter Detector
J. Hu, H. Gong, Q. Lin +6
The two-phase xenon detector is at the frontier of dark matter direct search. This kind of detector uses liquid xenon as the sensitive target and is operated in two-phase (liquid/g…
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. Substan…
Towards Low-Energy Electron High-Resolution Spectroscopy with Transition-Edge Sensors
R. Ammendola, A. Apponi, G. Benato +62
We present a study of the energy resolution of transition-edge sensors (TESs) for the detection of electrons in the 100 eV kinetic energy range. The TES is a Ti-Au bilayer with an…
Microscopic theory of thermalization in 1D with nonlinear bath coupling
A. Rodin, B. A. Olsen, M. Choi +1
Using a non-perturbative classical model, we numerically investigate the dynamics of mobile particles interacting with an infinite chain of harmonic oscillators, an abstraction of…
The Gaussian CL Method for Searches of New Physics
X. Qian, A. Tan, J. J. Ling +2
We describe a method based on the CL approach to present results in searches of new physics, under the condition that the relevant parameter space is continuous. Our method rel…
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 quantit…
Energetic electron precipitation driven by electromagnetic ion cyclotron waves from ELFIN's low altitude perspective
V. Angelopoulos, X. -J. Zhang, A. V. Artemyev +83
We review comprehensive observations of electromagnetic ion cyclotron (EMIC) wave-driven energetic electron precipitation using data from the energetic electron detector on the Ele…
Statistical Evaluation of Experimental Determinations of Neutrino Mass Hierarchy
X. Qian, A. Tan, W. Wang +3
Statistical methods of presenting experimental results in constraining the neutrino mass hierarchy (MH) are discussed. Two problems are considered and are related to each other: ho…
Accessible Melanoma Detection using Smartphones and Mobile Image Analysis
T. -T. Do, T. Hoang, V. Pomponiu +6
We investigate the design of an entire mobile imaging system for early detection of melanoma. Different from previous work, we focus on smartphone-captured visible light images. Ou…