The standard model (SM) of particle physics describes how the Universe works at a fundamental level. Even though this theory has proven to be very successful over the past 50 years, we know it is ...

In atomic physics and quantum chemistry, the electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure (e.g., a crystal). Like other elementary particles ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences In a previous paper the Hartree-Fock method has been used to calculate electron excitation cross-sections for ...