1996/01/29 by V. V. Petrunin, H. H. Andersen, Péter Balling +1 · 92 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates #Metastability #Photoionization #Atomic physics #Physics #Ion #Binding energy #Ground state #State (computer science) #Ionization #Quantum mechanics
paper · doi:10.1103/physrevlett.76.744
published in Physical Review Letters 76(5), 744-747 (American Physical Society)
openalex publication_date 1996/01/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/26
The binding energies of the 4s24p2P ground state in Ca^\ensuremath- have been determined by means of state-selective photoionization of Ca atoms produced in s-wave photodetachment to be 24.55\ifmmode±\else\textpm\fi0.10 meV for the J\phantom\rule0ex0ex=\phantom\rule0ex0ex1/2 and 19.73\ifmmode±\else\textpm\fi0.10 meV for the J\phantom\rule0ex0ex=\phantom\rule0ex0ex3/2 component. The sensitivity of the detection technique applied has also made it possible to disprove previous claims for the observation of a metastable 4s4p24P state in Ca^\ensuremath-.