Results 21 to 30 of about 2,444,499 (343)

A new technique for quick identification of defective region inside γ-ray detector [PDF]

open access: yesEPJ Web of Conferences, 2023
The γ-ray detection efficiency of a detector decreases over time due to factors like radiation damage or an increase in the thickness of the inactive dead layer.
Das Biswajit   +7 more
doaj   +1 more source

Effect of the LEGe detector collimators on K-series peaks and Compton scattering in XRF analysis using gamma rays

open access: yesHeliyon, 2018
The effect of a low-energy germanium detector collimator with different diameters on the measurement of the X-ray fluorescence of palladium (Pd) was studied experimentally.
Mohammad W. Marashdeh
doaj   +1 more source

The impact of atomic precision measurements in high energy physics [PDF]

open access: yes, 2000
In this talk I discuss the relevance of atomic physics in understanding some important questions about elementary particle physics. A particular attention is devoted to atomic parity violation measurements which seem to suggest new physics beyond the ...
Casalbuoni, Roberto
core   +2 more sources

On the origin of quantum mechanics [PDF]

open access: yes, 2005
Action at distance in Newtonian physics is replaced by finite propagation speeds in classical post--Newtonian physics. As a result, the differential equations of motion in Newtonian physics are replaced by functional differential equations, where the ...
Bohr   +38 more
core   +1 more source

Dipolar physics: a review of experiments with magnetic quantum gases [PDF]

open access: yesReports on progress in physics. Physical Society, 2022
Since the achievement of quantum degeneracy in gases of chromium atoms in 2004, the experimental investigation of ultracold gases made of highly magnetic atoms has blossomed.
L. Chomaz   +5 more
semanticscholar   +1 more source

Educational physical experiment as a research tool in the cloud-oriented learning environment

open access: yesCTE Workshop Proceedings, 2017
Research goals: study the feasibility of the research students with educational physical experiment in the cloud-oriented learning environment. Research objectives: the role of research students in the cloud-oriented learning environment through ...
M. V. Khomutenko
doaj   +1 more source

Giant spin ensembles in waveguide magnonics

open access: yesNature Communications, 2022
‘Giant atom’ physics occurs when the size of the atomic system becomes comparable to the wavelength of the light it interacts with. For atoms, such a regime is impossible to reach, however, for artificial atomic systems such ‘giant atom’ physics can be ...
Zi-Qi Wang   +8 more
doaj   +1 more source

Ground States for a Stationary Mean-Field Model for a Nucleon [PDF]

open access: yes, 2012
In this paper we consider a variational problem related to a model for a nucleon interacting with the $\omega$ and $\sigma$ mesons in the atomic nucleus. The model is relativistic, and we study it in a nuclear physics nonrelativistic limit, which is of a
Esteban, Maria J., Nodari, Simona Rota
core   +5 more sources

Incorporating long-range physics in atomic-scale machine learning. [PDF]

open access: yesJournal of Chemical Physics, 2019
The most successful and popular machine learning models of atomic-scale properties derive their transferability from a locality ansatz. The properties of a large molecule or a bulk material are written as a sum over contributions that depend on the ...
Andrea Grisafi, Michele Ceriotti
semanticscholar   +1 more source

Special Issue on Atomic and Ionic Collisions with Formation of Quasimolecules

open access: yesAtoms, 2018
Many areas of science today, like atomic and molecular physics, nuclear physics, astrophysics, laboratory plasma research etc., depend on data for ionic, atomic, and molecular collision processes.
Vladimir A. Srećković   +2 more
doaj   +1 more source

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