Showing papers by "H. G. Berry published in 2002"

Measurement of the 6s − 7p transition probabilities in atomic cesium and a revised value for the weak charge QW

Abstract: We have measured the $6s\ensuremath{-}{7p}_{1/2,3/2}$ transition probabilities in atomic cesium using a direct absorption technique. We use our result and other previously measured transition rates to derive an accurate value of the vector transition polarizability $\ensuremath{\beta}$ and, consequently, reevaluate the weak charge ${Q}_{W}.$ Our derived value ${Q}_{W}=\ensuremath{-}72.65(49)$ agrees with the prediction of the standard model to within one standard deviation.

Mixed configuration-interaction and many-body perturbation-theory calculations of energies and oscillator strengths of J=1 odd states of neon

Abstract: Ab initio theory is developed for energies of J=1 particle-hole states of neutral neon and for oscillator strengths of transitions from such states to the J=0 ground state. Hole energies of low-Z neonlike ions are evaluated.