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  1. No Access

    Article

    Near-threshold photoionization from the excited mp5(m + 1)p J = 0−3 levels of Ar, Kr and Xe (m = 3−5)

    Using the configuration interaction Pauli-Fock including core polarization (CIPFCP) approach we have calculated absolute total and partial cross sections for photoionization of excited mp ...

    I. D. Petrov, V. L. Sukhorukov, M. -W. Ruf, D. Klar… in The European Physical Journal D (2011)

  2. No Access

    Article

    Odd autoionizing 2p1/2 5n(s′/d′) resonances of Ne excited from the 2p53p[K]J states

    Absolute photoionization cross sections for Ne atoms in the excited \(2{p}^{5}3{p}[K]_{J}~(J=0\!\!-\!\!3)\) levels (Pas...

    I. D. Petrov, V. L. Sukhorukov, M. W. Ruf, H. Hotop in The European Physical Journal D (2009)

  3. No Access

    Article

    High resolution study of anion formation in low-energy electron attachment to SF6 molecules in a seeded supersonic beam

    Using two variants of the Laser Photoelectron Attachment (LPA) method involving a differentially-pumped, seeded supersonic beam (0.05% and 12.5% of SF6 molecules in helium carrier gas, nozzle temperatures T0= ...

    M. Braun, S. Barsotti, S. Marienfeld… in The European Physical Journal D - Atomic, … (2005)

  4. No Access

    Article

    Efficient long-term laser excitation of a collimated beam of potassium atoms on the D2 line

    With the aim to provide a reliable scheme for efficient laser excitation of the potassium D2 line over long periods of time, we have developed a robust stabilization of a single mode laser of frequency f ...

    A. Gopalan, E. Leber, J. Bömmels… in The European Physical Journal D - Atomic, … (2004)

  5. No Access

    Article

    A novel electron scattering apparatus combining a laser photoelectron source and a triply differentially pumped supersonic beam target: characterization and results for the resonance

    A novel electron scattering apparatus for high resolution studies of angle-differential elastic and inelastic electron scattering from atoms and molecules in the gas phase is described and its performance char...

    A. Gopalan, J. Bömmels, S. Götte… in The European Physical Journal D - Atomic, … (2003)

  6. No Access

    Article

    Vibrational Feshbach resonances in electron attachment to carbon dioxide clusters

    Using a high resolution ( meV) laser photoelectron attachment method, we have studied the formation of (CO 2) q − ions (q = 4−22) in collisio...

    E. Leber, S. Barsotti, I.I. Fabrikant… in The European Physical Journal D - Atomic, … (2000)

  7. No Access

    Article

    Effects of solvation on dissociative electron attachment to methyl iodide clusters

    Using laser photoelectron attachment to methyl iodide clusters in a differentially-pumped seeded supersonic helium beam and mass spectrometric ion detection, we have measured the rate coefficients for formatio...

    J.M. Weber, I.I. Fabrikant, E. Leber… in The European Physical Journal D - Atomic, … (2000)

  8. No Access

    Article

    Formation of small water cluster anions by attachment of very slow electrons at high resolution

    Using a high resolution laser photoelectron attachment method, we have studied the formation of (H 2 O) q - (q = 2, 6, 7, 11, 15) cluster i...

    J.M. Weber, E. Leber, M.-W. Ruf, H. Hotop in The European Physical Journal D - Atomic, … (1999)

  9. No Access

    Article

    Diatomic potential well depths from analyses of high-resolution electron energy spectra for autoionizing collision complexes

    High-resolution energy spectra of electrons released in Penning ionization collisions of metastable rare gas atoms Rg*(ns) (Rg = He, Ne, Ar, Kr, Xe) with several open-shell and closed-shell atoms are analyzed to...

    H. Hotop, T. E. Roth, M.-W. Ruf, A. J. Yencha in Theoretical Chemistry Accounts (1998)

  10. No Access

    Article

    Rydberg electron transfer to C60 and C70

    Experimental results are reported for the attachment of Ar* * (nl) Rydberg electrons to C60 and C70 over the range n = 19–270. In agreement with other Rydberg work we find that the rate coefficient for C ...

    J.M. Weber, M.-W. Ruf, H. Hotop in Zeitschrift für Physik D Atoms, Molecules and Clusters (1996)

  11. No Access

    Article

    The interaction of metastable helium atoms with alkaline earth atoms: He*(23 S,21 S)+Mg, Ca, Sr and Ba

    We have carried out experimental and theoretical studies of Penning ionization processes occurring in thermal energy collisions of state-selected metastable He*(23 S) and He*(21 ...

    M.-W. Ruf, A.J. Yencha, H. Hotop, M. Movre… in Zeitschrift für Physik D Atoms, Molecules … (1996)

  12. No Access

    Article

    Comparison of rate coefficients for rydberg electron and free electron attachment

    New experimental results on attachment reactions involving free electrons at sub-meV resolution allow for the first time a conclusive comparison of measured rate coefficients for Rydberg electron attachment wi...

    D. Klar, B. Mirbach, H. J. Korsch… in Zeitschrift für Physik D Atoms, Molecules … (1994)

  13. No Access

    Article

    Angle-dependent electron energy spectra resulting from autoionizing Ne⋆ (3s 3 P 2) +H(12 S) collisions

    Experimental angle-dependent electron energy spectra for the autoionization complex Ne*(3s 3 P 2)+H(12 S), leading to Penning and associative ionization, are reported. The data, measured at thermal collision ener...

    A. Merz, M. -W. Ruf, H. Hotop in Zeitschrift für Physik D Atoms, Molecules and Clusters (1994)

  14. No Access

    Article

    Penning ionization electron spectrometry of hydrogen iodide

    The energy spectra of electrons released in thermal energy ionizing collisions of metastable helium and neon atoms with hydrogen iodide have been measured with high resolution and low background. The electron ...

    A. J. Yencha, M. -W. Ruf… in Zeitschrift für Physik D Atoms, Molecules and Clusters (1994)

  15. No Access

    Article

    Energy exchanges following very low energy electron attachment to neat CS2 and CS2-containing clusters

    We have studied electron transfer from state-selected Rydberg atoms to (CS2) N and CS2(Ar) N clusters and compared the results to Rydberg elec...

    C. Desfrancois, N. Khelifa, J. P. Schermann… in Zeitschrift für Physik D Atoms, Molecules … (1993)

  16. No Access

    Article

    Penning ionization and photoionization electron spectrometry of hydrogen fluoride

    An electron spectrometric study has been performed on HF using metastable helium and neon atoms as well as helium and neon resonance photons. High-resolution electron spectra were obtained for a pure He(23 S) bea...

    A. J. Yencha, M. -W. Ruf… in Zeitschrift für Physik D Atoms, Molecules and Clusters (1993)

  17. No Access

    Article

    On theJ-dependence of the odd (ns′,J=0,1) autoionization resonances of the rare gases Ne, Ar, Kr, and Xe

    Using resonant two-photon ionization of metastable rare gas atoms Rg(mp 5(m + 1)s 3 P 2,0) in a collimated beam by two transverse cw dye lasers, we have performed a comprehensive high resolution study of the odd ...

    D. Klar, K. Harth, J. Ganz, T. Kraft… in Zeitschrift für Physik D Atoms, Molecules … (1992)

  18. No Access

    Article

    Effective absolute rate constant for the formation of negatively-charged CO2 cluster ions by electron transfer from state-selected Rydberg atoms

    We have studied electron transfer from state-selected Ar** (nd) Rydberg atoms to (CO2) m clusters for 12≦n≦48. The relative rate constant for the total negative ion formation re...

    T. Kraft, M. -W. Ruf, H. Hotop in Zeitschrift für Physik D Atoms, Molecules and Clusters (1991)

  19. No Access

    Article

    Penning ionization and photoionization electron spectrometry of hydrogen bromide

    An electron spectrometric study has been performed on HBr using metastable helium and neon atoms as well as helium resonance photons. High resolution electron spectra were obtained for a mixed He(21 S, 23 S) beam...

    A. J. Yencha, M. -W. Ruf… in Zeitschrift für Physik D Atoms, Molecules and Clusters (1991)

  20. No Access

    Article

    Experimental and theoretical studies of the Bi-excited collision systems He*(23 S) + He*(23 S, 21 S) at thermal and subthermal kinetic energies

    We have carried out a comprehensive experimental and theoretical investigation of the autoionizing collision systems He*(23 S, 21 S) + He*(23 S). We present high resolution electron energy spectra, obtained with ...

    M. W. Müller, A. Merz, M. -W. Ruf, H. Hotop… in Zeitschrift für Physik D Atoms, Molecules … (1991)

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