Parity violation experiments involving only two nucleons provide a way to study the non-leptonic, strangeness-conserving part of the weak interaction in a clean measurement free of nuclear structure uncertainties. Such measurements are particularly appropriate for discussion at this conference as their success depends critically on the ability to accurately control and measure spin. Although si...

We reconsider parity violation experiments in atomic hydrogen and deuterium in the light of existing tests of the Electroweak interactions, and assess whether new experiments, using improved experimental techniques, could make useful contributions to testing the Standard Model (SM). We find that, if parity experiments in hydrogen can be done, they remain highly desirable because there is neglig...

Transition rates, oscillator strengths, and line strengths are calculated for the 49 possible electric-dipole transitions between the eight even-parity 2s2p states and the seven odd-parity 2s2p and 2p states in boronlike ions with nuclear charges ranging from Z56 to 100. Relativistic many-body perturbation theory ~MBPT!, including the Breit interaction, is used to evaluate retarded E1 matrix el...

Having in mind that physical systems have different levels of structure we develop the concept of external, internal and total improper Lorentz transformation (space inversion and time reversal). A particle obtained from the ordinary one by the application of internal space inversion or time reversal is generally a different particle. From this point of view the intrinsic parity of a nuclear pa...

Parity and nuclear spin symmetry are approximate symmetries, which for many primary processes in molecular spectroscopy kinetics lead to almost exact constants of the motion. The symmetric isotopomer dichlorodisulfane 35Cl32S32S35Cl (disulfur dichloride) is chiral with two enantiomers, each has also isomers (ortho para isomers). Electroweak quantum chemistry predicts a small ‘parity violating’ ...

Background: The nucleus $^{32}$Mg ($N=20$ and $Z=12$) plays a central role in the so-called "island of inversion" where ground states $sd$-shell neutrons are promoted to $fp$-shell orbitals across shell gap, resulting disappearance canonical neutron magic number $N=20$. Purpose: primary goals this work extend level scheme $^{32}$Mg, provide spin-parity assignments excited states, discuss micros...