We simulate the deceleration and transmission of antiprotons with keV-scale kinetic
energies through polymer foils using a molecular dynamics approach, which includes a …

The three-body Schrödinger equation of the system composed of an α particle He 2+, a
negatively charged pion π−, and an electron interacting through Coulomb forces is solved in …

The Lagrange-mesh method is known to be an efficient tool for evaluating the bound states
of various three-body atomic and molecular systems. By combining it with the complex …

The resonance energies and widths of the P-wave states of helium and of the positronium
ion are studied under the hypothesis that their constituting particles interact trough pure or …

We review recent experiments carried out by the PiHe collaboration of the Paul Scherrer
Institute (PSI) that observed an infrared transition of three-body pionic helium atoms by laser …

A method combining the Lagrange-mesh and the complex Kohn variational methods is
developed for computing the S matrix of a 2+ 1 elastic scattering in the frame of three-body …

The Lagrange-mesh method is an approximate variational method which provides accurate
solutions of the Schrödinger equation for bound-state and scattering few-body problems …

A review of a recent experiment carried out at PSI involving laser spectroscopy of metastable
pionic helium ($\pi {\rm^ 4He}^+\equiv\pi^{-}+{\rm^ 4He}^{2+}+ e^-$) atoms is presented. An …

For regional or even global geophysical problems, the curvature of the geophysical model
cannot be approximated as a plane, and its curvature must be considered. Tesseroids can fit …

PROGRESS REPORT OF THE ASACUSA AD-3 COLLABORATION Page 1 CERN-SPSC-2022-002
/ SPSC-SR-301 08/01/2022 January 8, 2022 PROGRESS REPORT OF THE ASACUSA AD-3 …