Cross sections for the two-step radiative decay process $$X(v)\rightarrow A(v^{\prime \prime })\rightarrow X(v^\prime )$$ in e-LiH collisions

Two-photon mediated resonance production in e+e− collisions: cross sections and density matrices

Earlier described model amplitudes are used in this paper to evaluate both cross sections and density matrices for two-photon mediated resonance production in e+e− collisions. All 25 qq̄ low-lying S0, PJ and D2 resonances can thus be treated. Two independent methods are described to obtain the resonance production density matrices and cross sections. These density matrices combined with a resona...

Cross Sections for Electron Collisions with NF3

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Meson–photon transition form factors and resonance cross-sections in e+e− collisions

Meson–photon–photon transition form factors for S-, P -, and D-wave states are calculated, the meson being treated as a non-relativistic heavy-quark– antiquark pair. The full dependence on both photon virtualities is included. Cross-section formulas for charge-conjugation even mesons with J = 0−, 0, 1, 2, and 2− in electron–positron collisions are presented and numerical results for LEP energie...

Cross Sections for the Collisions of Alkaline Earth Atoms

The total attenuation cross sections, a*, were measured for collisions of an excited atomic beam of Mg, Ca or Sr with a target of Cl2 molecules. The experimental o* values equal: 85 Ä2, 100 Ä2 and 180 Ä2 for Mg*, Ca* and Sr*, respectively. Moreover, the reactive cross sections, OR were calculated, assuming the "harpoon mechanism" for the reactions in question. The obtained values are: OR* (Mg* ...