Electron-Hydrogen Scattering at Low Energies

Multiphoton detachment ofH−

“…When the laser has circular polarization it follows that l" in Eq. (17) (20) in D would result in progressively larger differences between the two sets of generalized cross sections (calculated with Do and D, respectively) as the photon number n increased. Large differences were not found.…”

“…One [11] and low-energy singlet phase shifts [12 -15] [19],the constant B is determined from the effective range of the potential energy [20]. This form of initial-state wave function has also been used by Adelman [21] [16] We finally note in this section that consistent application of the model-potential theory implies the use of a dipole operator D which includes the contribution from the dipole moment induced on the hydrogen-atom "core" by the "valence" electron [23,24] (15)…”

Photodetachment of H − near a Partially Reflecting Surface—I

“…To understand the absorption effect, a reflection parameter K is introduced as a multiplicative factor to the outgoing detached-electron wave of H − propagating toward the wall. The reflection parameter measures, how much electron wave would reflect from the surface; K = 0 corresponds to no reflection and K = 1 corresponds to the total reflection.PACS number: 32.80.GcIt has been observed both theoretically as well as experimentally that the photodetachment cross section of H − shows a smooth behavior in the free space [1,2]; while in the presence of a reflecting surface it displays oscillations [3,4]. These oscillations are similar as if they are in the presence of a static electric field [5,6,7,8,9,10,11].…”

Strong field detachment of a negative ion with non-zero angular momentum: application to F

“…Therefore, even for s states our modelindependent approach is somewhat more general than the ZRP model, giving the effectiverange-based justification for introducing the asymptotic factor C 0 when applying the ZRP results to ATD of real ions, such as, e.g., H -(cf. [15] for the case of photodetachment).…”