3 papers
hep-ph2025
Ultra-cold neutrons in qBounce experiments as laboratory for test of chameleon field theories and cosmic acceleration
Derar Altarawneh, Roman Höllwieser
The accelerating expansion of the Universe, attributed to dark energy, has spurred interest in theories involving scalar fields such as chameleon field theories. These fields, whic…
hep-ph2024
Spatial distribution of ultracold neutron probability density in the gravitational field of the earth above a mirror
Derar Altarawneh, Roman Höllwieser, Markus Wellenzohn
We propose a theoretical analysis of the experimental data by Ichikawa et al. (Phys. Rev. Lett. 112, 071101 (2014)) on a spatial distribution of ultracold neutrons in the gravitati…
hep-ph2024
Neutron beta decay and exact conservation of charged weak hadronic vector current in the Standard Model
Derar Altarawneh, Roman Höllwieser, Markus Wellenzohn
We investigate a reliability of the hypothesis of exact conservation of the charged weak hadronic vector current in the neutron $β^-$-decay with polarized neutron and unpolarized…