| dc.creator | Da Silva E.P. | |
| dc.creator | Germano J.S.E. | |
| dc.creator | Lino J.L.S. | |
| dc.creator | De Carvalho C.R.C. | |
| dc.creator | Natalense A.P.P. | |
| dc.creator | Lima M.A.P. | |
| dc.date | 1998 | |
| dc.date | 2015-06-30T15:07:22Z | |
| dc.date | 2015-11-26T15:20:18Z | |
| dc.date | 2015-06-30T15:07:22Z | |
| dc.date | 2015-11-26T15:20:18Z | |
| dc.date.accessioned | 2018-03-28T22:29:47Z | |
| dc.date.available | 2018-03-28T22:29:47Z | |
| dc.identifier | | |
| dc.identifier | Nuclear Instruments And Methods In Physics Research, Section B: Beam Interactions With Materials And Atoms. , v. 143, n. 1-2, p. 140 - 148, 1998. | |
| dc.identifier | 0168583X | |
| dc.identifier | | |
| dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-0032474951&partnerID=40&md5=0aecfcfe042ce9d08e2bc432c9090e15 | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/100735 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/100735 | |
| dc.identifier | 2-s2.0-0032474951 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1259944 | |
| dc.description | We present recent results for positron-molecule scattering obtained with the Schwinger multichannel method. Our calculations include integral, differential and momentum transfer cross sections and the annihilation parameter Zeff for C2H2 and C2H4 molecules. We discuss a mechanism for annihilation of positrons in low-energy positron-molecule scattering. We interpret the annihilation process through virtual electronic excitation of the target combined with electronic cloud relaxation and virtual positronium formation. We study the influence of the first electronic state of the target on the cross section and on the annihilation parameter in C+-C2H2 scattering. © 1998 Elsevier Science B.V. All rights reserved. | |
| dc.description | 143 | |
| dc.description | 1-2 | |
| dc.description | 140 | |
| dc.description | 148 | |
| dc.description | Murphy, T.J., Surko, C.M., (1991) Phys. Rev. Lett., 67, p. 2954 | |
| dc.description | Iwata, K., Greaves, R.G., Murphy, T.J., Tinkle, M.D., Surko, C.M., (1995) Phys. Rev. A, 51, p. 473 | |
| dc.description | Da Silva, E.P., Germano, J.S.E., Lima, M.A.P., (1996) Phys. Rev. Lett., 77, p. 1028 | |
| dc.description | Germano, J.S.E., Lima, M.A.P., (1993) Phys. Rev. A, 47, p. 3976 | |
| dc.description | Joachain, C.J., (1975) Quantum Collision Theory, p. 594. , North-Holland, Oxford | |
| dc.description | Da Silva, E.P., Germano, J.S.E., Lima, M.A.P., (1994) Phys. Rev. A, 49, pp. R1527 | |
| dc.description | Fraser, P.A., (1968) Adv. Atom. Mol. Phys., 4, p. 63 | |
| dc.description | Przybyla, D.A., Addo-Asah, W., Kauppila, W.E., Kwan, C.K., Stein, T.S., (1997) Positron Workshop on Low-Energy Positron and Positronium Physics, p. 26. , Nottingham | |
| dc.description | Sueoka, O., Mori, S., (1986) J. Phys. B, 19, p. 4035 | |
| dc.description | Herzberg, G., Molecular Spectra and Molecular Structure, p. 611. , Copyright 1966 by Litton Educational Publishing | |
| dc.description | Sueoka, O., Mori, S., (1989) J. Phys. B, 22, p. 963 | |
| dc.language | en | |
| dc.publisher | | |
| dc.relation | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms | |
| dc.rights | fechado | |
| dc.source | Scopus | |
| dc.title | Annihilation Dynamics Of Positrons In Molecular Environments | |
| dc.type | Artículos de revistas | |
