Vibrational scattering anisotropy in O2—dynamics beyond the Born–Oppenheimer approximation
نویسندگان
چکیده
منابع مشابه
Compton scattering beyond the impulse approximation
We treat the nonrelativistic Compton scattering process in which an incoming photon scatters from an N-electron many-body state to yield an outgoing photon and a recoil electron, without invoking the commonly used frameworks of either the impulse approximation ~IA! or the independent particle model ~IPM!. An expression for the associated triple differential scattering cross section is obtained ...
متن کاملLight scattering by cubical particle in the WKB approximation
In this work, we determined the analytical expressions of the form factor of a cubical particle in the WKB approximation. We adapted some variables (size parameter, refractive index, the scattering angle) and found the form factor in the approximation of Rayleigh-Gans-Debye (RGD), Anomalous Diffraction (AD), and determined the efficiency factor of the extinction. Finally, to illustrate our form...
متن کاملCalculating molecular vibrational spectra beyond the harmonic approximation
We present a new approach for calculating anharmonic corrections to vibrational frequency calculations. The vibrational wavefunction is modelled using translated Hermite functions thus allowing anharmonic effects to be incorporated directly into the wavefunction whilst still retaining the simplicity of the Hermite basis. We combine this new method with an optimised finite-difference grid for co...
متن کاملPlanckian Scattering Beyond the Eikonal Approximation in the Functional Approach
In the framework of functional integration the non-leading terms to leading eikonal behavior of the Planckian-energy scattering amplitude are calculated by the straight-line path approximation. We show that the allowance for the first-order correction terms leads to the appearance of retardation effect. The singular character of the correction terms at short distances is also noted, and they ma...
متن کاملMultiple-scattering theory beyond the Muffin-Tin approximation
Multiple-Scattering Theory Beyond The MutTm-Tin Approximation J. Molenaar Mathematics Consulting Department Katholieke Universiteit Toernooiveld 6525 ED Nijmegen We present a new derivation of multiple-scattering theory as applied in solid state physics. The present approach is a generalization of the well-known Korringa, Kohn and Rostoker (KKR) formalism and holds also in the case of overlappi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2012
ISSN: 1367-2630
DOI: 10.1088/1367-2630/14/11/113018