Zobrazeno 1 - 10 of 100 pro vyhledávání: '"Edwin N. Lassettre"'
1
Generalized oscillator strengths through the water vapor spectrum to 75 eV excitation energy; electron kinetic energy 500 eV
Autor: Edwin N. Lassettre, E. Roderick White
Publikováno v: The Journal of Chemical Physics. 60:2460-2463
Generalized oscillator strengths (GOS) as functions of momentum change are reported for four peaks in the electron impact spectrum of water vapor. Differential generalized oscillator strengths are also reported at seven points in the continuum. Extra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::daeaba7e8e818d1616058a74e7c44fed
https://doi.org/10.1063/1.1681382
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2
Generalized oscillator strength for the transition A1B2u ← X1A1g in benzene at initial kinetic energies 400 eV and 500 eV
Autor: Edwin N. Lassettre, Kirby N. Klump
Publikováno v: Chemical Physics Letters. 51:99-104
Generalized oscillator strengths, ƒ, for the transition A 1 B 2u ← X 1 A 1g in benzene, determined by electron impact methods, are reported as a function of the momentum change. At scattering angles down to 2.5° helium was used as the comparison
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36bb413475be40f9eeecb0a70ed63bc6
https://doi.org/10.1016/0009-2614(77)85364-5
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4
Momentum eigenfunctions in the complex momentum plane. Local potential functions
Autor: Edwin N. Lassettre
Publikováno v: The Journal of Chemical Physics. 64:4375-4389
Singular points for one‐electron momentum functions in the complex momentum plane are located. The momentum functions are obtained from molecular orbitals which satisfy one‐electron Schrodinger equations with local potential functions. If the mol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e773ce214362122354bd7de55c52ca8
https://doi.org/10.1063/1.432107
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5
Excitation Energy of 3B1 State of H2O Calculated from Generalized Oscillator Strengths
Autor: Edwin N. Lassettre, Kirby N. Klump
Publikováno v: Canadian Journal of Physics. 53:1825-1831
Generalized oscillator strengths have been determined for the 7.4 e V excitation in H2O at initial electron kinetic energies from 300 to 600 eV and squared momentum changes (of the colliding electron) to 4.5 a.u. These data are employed, in an approx
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92fa692a4c40d344e3b6c4a7616cb2a2
https://doi.org/10.1139/p75-233
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6
Generalized oscillator strengths for 7.4 eV excitation of H2O at 300, 400, and 500 eV kinetic energy. Singlet‐triplet energy differences
Autor: Ausma Skerbele, Edwin N. Lassettre
Publikováno v: The Journal of Chemical Physics. 60:2464-2469
Generalized oscillator strengths f have been determined as a function of scattering angle for the 7.4 eV excitation of H2O vapor by studying the scattering of electrons with kinetic energies of 300, 400, and 500 eV. Over the angle range studied, 2°
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31ce50f07f816a93b5cbe8bcbac0a9e5
https://doi.org/10.1063/1.1681383
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7
Momentum eigenfunctions in the complex momentum plane. V. Analytic behavior of the Schrödinger equation in the complex momentum plane. The Yukawa potential
Autor: Edwin N. Lassettre
Publikováno v: The Journal of Chemical Physics. 82:827-840
A method for solution of the Schrodinger equation in momentum space is described. If the Schrodinger equation in momentum space is represented by Oχ=0, where O is an integral operator and χ is the momentum function, the method involves two steps: (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac195c34e0072f00d12c6858c1e74c4b
https://doi.org/10.1063/1.448509
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8
Momentum eigenfunctions in the complex momentum plane. II. Relation of secondary singular points to one‐electron, local, potential functions
Autor: Edwin N. Lassettre
Publikováno v: The Journal of Chemical Physics. 70:3468-3487
In a previous paper [J. Chem. Phys. 64, 4375 (1976)] it was shown that the points P=±i√−2E in the complex momentum plane (E is the one‐electron energy eigenvalue) are singular points of the one‐electron momentum eigenfunction obtained from a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffdca66a02b90557f0398bd410ccbf52
https://doi.org/10.1063/1.437883
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9
A collision cross section study of the 1 1S → 2 1P and 1 1S → 2 1S transitions in helium at kinetic energies from 200–700 eV. Failure of the Born approximation at large momentum changes
Autor: Edwin N. Lassettre, Michael A. Dillon
Publikováno v: The Journal of Chemical Physics. 62:2373-2390
Differential collision cross sections have been determined for the 1 1S → 2 1S and 1 1S → 2 1P transitions in helium at scattering angles within the range 7.5°−35° and kinetic energies of 200, 300, 400, 500, and 700 eV. Multiple scattering er
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8570b7408ae005c4a38146d7331a843
https://doi.org/10.1063/1.430763
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10
Momentum eigenfunctions in the complex momentum plane. IV. The construction of local potential functions. Perturbation series
Autor: Edwin N. Lassettre
Publikováno v: The Journal of Chemical Physics. 74:1225-1238
Expansion of exchange amplitudes, in inverse powers of a momentum, as a means of generating local exchange potentials has been studied further. The first term in such expansions varies inversely as the square of the momentum. Huo [J. Chem. Phys. 67,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::56ba8d39ff0caf0dc556512dd5897aea
https://doi.org/10.1063/1.441231
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