dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Dept Math | |
dc.date.accessioned | 2014-05-20T14:08:06Z | |
dc.date.accessioned | 2022-10-05T15:03:08Z | |
dc.date.available | 2014-05-20T14:08:06Z | |
dc.date.available | 2022-10-05T15:03:08Z | |
dc.date.created | 2014-05-20T14:08:06Z | |
dc.date.issued | 2001-04-28 | |
dc.identifier | Journal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 34, n. 8, p. 1361-1367, 2001. | |
dc.identifier | 0953-4075 | |
dc.identifier | http://hdl.handle.net/11449/23886 | |
dc.identifier | 10.1088/0953-4075/34/8/302 | |
dc.identifier | WOS:000168612400007 | |
dc.identifier | 8031087349809439 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3897122 | |
dc.description.abstract | Scattering of positronium (Ps) by sodium and potassium atoms has been investigated employing a three-Ps-state coupled-channel model with Ps(ls,2s,2p) states using a time-reversal-symmetric regularized electron-exchange model potential fitted to reproduce accurate theoretical results for PsNa and PsK binding energies. We find a narrow S-wave singlet resonance at 4.58 eV of width 0.002 eV in the Ps-Na system and at 4.77 eV of width 0.003 eV in the Ps-K system. Singlet P-wave resonances in both systems are found at 5.07 eV of width 0.3 eV. Singlet D-wave structures are found at 5.3 eV in both systems. We also report results for elastic and Ps-excitation cross sections for Ps scattering by Na and K. | |
dc.language | eng | |
dc.publisher | Iop Publishing Ltd | |
dc.relation | Journal of Physics B: Atomic, Molecular and Optical Physics | |
dc.relation | 2.119 | |
dc.relation | 0,850 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.title | S-, P- and D-wave resonances in positronium-sodium and positronium-potassium scattering | |
dc.type | Artigo | |