0000000000754946
AUTHOR
H. Ehrhardt
Measurements of Absolute Cross Sections for (e,H2) Collision Processes. Formation and Decay ofH2−Resonances
Energy and angular dependences of the elastic and inelastic scattering of electrons from ${\mathrm{H}}_{2}$ have been measured in the energy range 10 to 16 eV and for scattering angles ranging from 10\ifmmode^\circ\else\textdegree\fi{} to 120\ifmmode^\circ\else\textdegree\fi{}. Three resonance series have been investigated starting at 11.30, 11.50, and 13.63 eV, respectively. The last two series decay preferentially into one single electronic channel, while the first resonance (resonance I) decays into all energetically possible exit channels, i.e., $X^{1}\ensuremath{\Sigma}_{g}^{+}$, $b^{3}\ensuremath{\Sigma}_{u}^{+}$, $B^{1}\ensuremath{\Sigma}_{u}^{+}$. Throughout, stress is laid on the i…
A new resonance in thee-H2-scattering
A short-lived compound state of the systeme-H2 in the energy region from 13.5 to 15 eV has been investigated. It desintegrates preferably into theC 1 π u v=0, 1, 2, 3,... vibrational states of H2. Excitation functions and angular dependences of these states have been measured. The H2 vibrational levels are situated at 13.63, 13.93, 14.20, 14.70, 14.92,... eV. The shape of the potential energy curve and the internuclear distance of the compound state should be very similar to that of theC 1 π u resp.D 1 π u state ofH 2.