163,743 research outputs found
Erratum: “Accurate semiempirical potential energy curves for thea3Σ+-state of NaCs, KCs, and RbCs” [J. Chem. Phys. 154, 154304 (2021)]
No full textA minus sign must be added in Eq. (2.3) of the original paper: M. Schwarzer and J. P. Toennies, J. Chem. Phys. 154, 154304 (2021)
J. Schwarzer exlibrise
No full textMaria Hamannhttp://www.lib.unideb.huDebreceni Egyetem Egyetemi és Nemzeti KönyvtárCsúcsára állított négyzetben ülő női akt, körötte rózsák. A nő ölében szalag, ezen, és a kép alatt felirat: Ex libris J. Schwarzer. A kép fölött indadíszben két kürt. (A kép hátoldalán ceruzával: Maria Hamann Rostvik szerepel.)metsze
Accurate semiempirical potential energy curves for thea3Σ+-state of NaCs, KCs, and RbCs
No full textA five parameter semiempirical Tang–Toennies type model is used to describe the potential curves of the a3Σ+-state of the heteronuclear polar molecules NaCs, KCs, and RbCs. These molecules are of current interest in experiments at ultra-cold conditions to explore the effects of the strong dipole–dipole forces on the collective many-body quantum behavior. New quantum phenomena are also anticipated in systems consisting of atomic species with different fermion/boson statistics. The model parameters are obtained by simultaneously fitting all five of the parameters to the extensive LIF-Fourier transform spectroscopy published by Tiemann and collaborators [e.g., Docenko et al. J. Phys. B: At., Mol. Opt. Phys. 39, S929–S943 (2006)], who also report best fit potential curves. Although the new potentials are in good agreement with the earlier potentials, they have the advantage that they are continuous over the entire range of internuclear distances and have the correct long-range behavior. The scattering lengths for all isotope combinations show good agreement with dedicated experiments where available. The new potentials are also in excellent agreement with combining rules based on the potentials of the homonuclear systems
An accurate semiempirical potential energy curve for thea3Σ+-state of KRb
No full textA semiempirical potential energy curve for the a3Σ+-state of the KRb molecule with only five parameters is reported. The potential is continuous over the entire range of internuclear distances and has the correct long-range attractive dispersion potential from established theory. The potential provides an equally good fit of the laser induced fluorescence Fourier transform spectroscopic data of Pashov et al. [Phys. Rev. A 76, 022511 (2007)] as their multi-parameter potential. The new potential is supported by the good agreement of the well parameters De, Re and the harmonic vibrational constant ωe with combining-rule estimates. The scattering lengths for all six isotopologues are also in excellent agreement with experiment with a 0.2% adjustment within theoretical uncertainty of the leading dispersion coefficient C6. An analysis of the harmonic vibrational constant ωe and the constant ωexe of the potential of Pashov et al. reveals a significant difference to the present potential which turned out to be due to an oscillatory deviation in their potential in the vicinity of the potential minimum. The new potential is, thus, the best available because its simplicity is ideal for further applications
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
ALTERNATIVE VECTOR-BOSON SELF-COUPLINGS AND E+E--]W+W-
No full textMAALAMPI J, Schildknecht D, SCHWARZER KH. ALTERNATIVE VECTOR-BOSON SELF-COUPLINGS AND E+E--]W+W-. PHYSICS LETTERS B. 1986;166(3):361-366
The extended Hertzian Appraoch for lateral loading
No full textAbstract Motivated by the structure of the normal surface stress of the extended Hertzian approach [1] N. Schwarzer, "Elastic Surface Deformation due to Indenters with Arbitrary symmetry of revolution", J
Specific rate constants k(E, J) for the dissociation of NO2. I. Time-resolved study of rotational dependencies
No full textThe effect of rotational excitation on the specific rate constants k(E,J) of the unimolecular decomposion of NO2 has been investigated. Time-resolved pump- and probe experiments with sub-ps time resolution are reported in which NO2 molecules with well-defined rotational and vibrational energy distributions were optically excited near and above the dissociation threshold. The subsequent unimolecular decay of the reacting NO2 molecules was probed by time-resolved laser-induced fluorescence of the disappearing NO2 via excitation to Rydberg states. At constant photolysis wavelength, increasing rotational energy (up to 310 cm(-1)) was found to leave the overall decay rate nearly unaffected. This observation can be rationalized by assuming a compensation of the angular momentum and energy dependences of the specific rate constants when J and E are, changed at the same time. Keeping the total energy E nearly constant and changing J independently, the effect of rotation on the decay rate can be separated and observed more clearly. From the experimental data we conclude that, for sufficiently high J and constant total energy, molecules with larger J dissociate more slowly than molecules with small J, which is in agreement with predictions from statistical unimolecular rate theory. (C) 2001 American Institute of Physics
ON TESTING VECTOR BOSON SELF COUPLINGS IN E+E--]W+W-
No full textKURODA M, MAALAMPI J, Schildknecht D, SCHWARZER KH. ON TESTING VECTOR BOSON SELF COUPLINGS IN E+E--]W+W-. PHYSICS LETTERS B. 1987;190(1-2):217-225
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