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21 papers · 1 filter
Proton strings and rings in atypical nucleation of ferroelectricity in ice
Jorge Lasave, Sergio Koval, Alessandro Laio +1
Ordinary ice has a proton-disordered phase which is kinetically metastable, unable to reach, spontaneously, the ferroelectric (FE) ground state at low temperature where a residual…
Calibration of the underground muon detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +370
To obtain direct measurements of the muon content of extensive air showers with energy above eV, the Pierre Auger Observatory is currently being equipped with an underg…
Estimate of the location of the neutron drip line for calcium isotopes from an exact Hamiltonian with continuum pair correlations
A. C. Dassie, R. M. Id Betan
The eastern region of the calcium isotope chain of the nuclei chart is, nowadays, of great activity. The experimental assessment of the limit of stability is of interest to confirm…
Vibrational Frequencies of Cerium Oxide-Bound CO: A Challenge for Conventional DFT Methods
Pablo G. Lustemberg, Philipp Pleßow, Yuemin Wang +5
In ceria-based catalysis, the shape of the catalyst particle, which determines the exposed crystal facets, profoundly affects its reactivity. The vibrational frequency of adsorbed…
Design, upgrade and characterization of the silicon photomultiplier front-end for the AMIGA detector at the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +357
AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to complement the study of ultra-high-energy cosmic rays (UHECR) by measuring the…
Electron self-energy from quantum charge fluctuations in the layered t-J model with long-range Coulomb interaction
Hiroyuki Yamase, Matías Bejas, Andrés Greco
Employing a large-N scheme of the layered t-J model with the long-range Coulomb interaction, which captures fine details of the charge excitation spectra recently observed in cupra…