Relative triple-differential cross sections for ionization of Xe 4d and 5p orbitals have been measured in coplanar asymmetric kinematics. The scattered-electron energy is held at 1000 eV while the ejected-electron energy is changed so as to select energy-loss values DELTAE in or out of the region characterized by the giant resonance in the 4d double-line arrow pointing right epsilonf channel. The ionization mechanism as well as the interference be-tween the direct and resonant processes have been investigated by varying the momentum transfer in a collision at each ejected-electron energy. Strong interchannel coupling between the 5p and 4d shells in the region of the giant resonance has been observed in (e,2e) experiments. Distorted-wave-Born-approximation calculations have been compared with the experimental triple-differential cross section and used to guide the discussion.
Avaldi, L., Camilloni, R., Multari, R., Stefani, G., Zhang, X., Walters, H., et al. (1993). COPLANAR ASYMMETRIC (E,2E) EXPERIMENTS ON XENON 4D AND 5P ORBITALS RID G-7348-2011. PHYSICAL REVIEW A, 48(2), 1195-1203 [10.1103/PhysRevA.48.1195].
COPLANAR ASYMMETRIC (E,2E) EXPERIMENTS ON XENON 4D AND 5P ORBITALS RID G-7348-2011
STEFANI, Giovanni;
1993-01-01
Abstract
Relative triple-differential cross sections for ionization of Xe 4d and 5p orbitals have been measured in coplanar asymmetric kinematics. The scattered-electron energy is held at 1000 eV while the ejected-electron energy is changed so as to select energy-loss values DELTAE in or out of the region characterized by the giant resonance in the 4d double-line arrow pointing right epsilonf channel. The ionization mechanism as well as the interference be-tween the direct and resonant processes have been investigated by varying the momentum transfer in a collision at each ejected-electron energy. Strong interchannel coupling between the 5p and 4d shells in the region of the giant resonance has been observed in (e,2e) experiments. Distorted-wave-Born-approximation calculations have been compared with the experimental triple-differential cross section and used to guide the discussion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
