H(2p)Excitation Resonances in (e−H) System Near Threshold

Abstract

cause of the selection rules for Aj. The finestructure composition of a beam component in the 2 3 P states thus changes as the beam travels.

e-H Resonances in the2pExcitation Channel

“…9 It was shown (see Fig. 4) that our experimental results through the first resonance peak agree exceptionally well with the theoretical prediction (refer to Table I).…”

Lithium Perchlorate: Ab Initio Study of the Structural and Spectral Changes Associated with Ion Pairing

“…Electron density between lithium and oxygen (0. 19) indicates the formation of a Li + -O bond in the monodentate structure. In the bidentate structure, the formations of two Li + -O bonds are almost equal in strength to the monodentate single Li + -O bond as indicated by the electron density (0.17) for each Li + -O atom pair.…”

“…Cartesian force constants were computed analytically at each stationary point and transformed to valence force constants; harmonic vibrational frequencies were found by diagonalization of the matrix of mass-weighted Cartesian force constants from which residual translational and rotational contributions had first been eliminated. 19 Symmetry constraints were applied for each coordination geometry, forcing the structure to optimize in the desired configuration, which also serves to minimize the computational time to perform the calculations. All calculations were performed on an IBM RISC 6000 workstation.…”

Interference-assisted detection of dark photon using atomic transitions

“…Finally we stress that the expected constraints on the dark photon coupling constant from the LSW experiments should be considered as complimentary to and independent from the results of other experiments devoted to the searches of dark matter particles and, in particular, dark photons. In particular, for mass m below 10 −4 eV the constraints from the experiments [24,25] searching for the deviations from the Coulomb law appear to give very strong constraints on the dark photon coupling. As is shown in [26], the region m > 1 eV is strongly constrained by the CAST experiment detecting axions and dark photons of solar origin.…”