The variational method complemented with the use of explicitly correlated Gaussian basis
functions is one of the most powerful approaches currently used for calculating the …

Theoretical chemistry could be seen as a bridge from the real physics of the physicists to the
real chemistry of the experimental chemists. We hence expect that any measurable property …

Atomic physics techniques for the determination of ground-state properties of radioactive
isotopes are very sensitive and provide accurate masses, binding energies, Q-values …

Nuclear charge radii of Be 7, 9, 10, 11 have been determined by high-precision laser
spectroscopy. On-line measurements were performed with collinear laser spectroscopy in …

Over three and a half decades of collinear laser spectroscopy and the COLLAPS setup have
played a major role in the ISOLDE physics programme. Based on a general experimental …

The dissociation energies from all rovibrational levels of H2 and D2 in the ground electronic
state are calculated with high accuracy by including relativistic and quantum …

Since the early work of Hylleraas on the helium atom, 1 it has been common knowledge that,
to accurately account for the interaction between the electrons in an atom or a molecule …

The nuclear charge radius of Be 12 was precisely determined using the technique of
collinear laser spectroscopy on the 2 s 1/2→ 2 p 1/2, 3/2 transition in the Be+ ion. The mean …

Measuring the hydrogen-deuterium isotope shift via two-photon spectroscopy of the 1 S-2 S
transition, we obtain 670 994 334 606 (15) Hz. This is a 10-times improvement over the …

The neutron-rich He 6 and He 8 isotopes exhibit an exotic nuclear structure that consists of a
tightly bound He 4-like core with additional neutrons orbiting at a relatively large distance …