Actas de congresos
Antiatom-atom Scattering With The Close-coupling Model
Registro en:
Nuclear Instruments And Methods In Physics Research, Section B: Beam Interactions With Materials And Atoms. , v. 221, n. 1-4, p. 12 - 20, 2004.
0168583X
10.1016/j.nimb.2004.03.024
2-s2.0-2542441905
Autor
Chakraborty S.
Basu A.
Chaudhuri P.
Sinha P.K.
Ghosh A.S.
Institución
Resumen
Collisions involving atoms and antiatoms have been investigated at low incident energies using close-coupling approximation (CCA). We investigate ortho-positronium-ortho-positronium (o-Ps-o-Ps) scattering up to incident energy 3.4 eV. Antihydrogen-hydrogen elastic scattering has been studied in the energy range 10-10 to 10-2 a.u., whereas antihydrogen-helium system has been investigated in the range 10-16 to 10-2 a.u. The s-wave elastic scattering parameters, viz., scattering length, effective range, phase shift, cross section etc., have been reported. The present predictions have been compared with the other corresponding theoretical predictions wherever available. Usefulness of CCA model to investigate these systems at thermal energies has been emphasized. © 2004 Elsevier B.V. All rights reserved. 221 1-4 12 20 Liang, E.P., Dermer, C.D., (1988) Opt. Commun., 65, p. 454 Platzmann, P.M., Mill Jr., A.P., (1994) Phys. Rev. B, 49, p. 454 Cassidy, D.B., Golovchenko, J.A., (2001) New Directions in Antimatter Chemistry and Physics, , C.M. Surko, & F.A. Gianturco. The Netherlands: Kluwer Academic Publishers Saito, H., Hyodo, T., (2001) New Directions in Antimatter Chemistry and Physics, , C.M. Surko, & F.A. Gianturco. The Netherlands: Kluwer Academic Publishers Shumway, J., Ceperley, D.M., (2001) Phys. Rev. B, 63, p. 165209 Ivanov, I.A., Mitroy, J., Varga, K., (2002) Phys. Rev. A, 65, p. 022704 Damburg, R.J., Karule, E., (1967) Proc. Phys. Soc., 90, p. 637 Ivanov, I.A., Mitroy, J., Varga, K., (2001) Phys. Rev. Lett., 87, p. 063201 Oda, K., Miyakawa, T., Yabu, Y., Suzuki, T., (2001) J. Phys. Soc. Jpn., 70, p. 1549 Baur, G., (1996) Phys. Lett. B, 368, p. 251 Blanford, G., Christian, D.C., Gollwitzer, K., Mandelkern, M., Munger, C.T., Schultz, J., Zioulas, G., (1998) Phys. Rev. Lett., 80, p. 3037 Amoretti, M., (2002) Nature (London), 419, p. 456 Gabrielse, G., (2002) Phys. Rev. Lett, 89, p. 213401 Gabrielse, G., (2002) Phys. Rev. Lett, 89, p. 233401 Armour, E.A.G., Carr, V., Zeeman, V., (1998) J. Phys. B, 31, pp. L679 Froelich, P., Jonsell, S., Saenz, A., Zygelman, B., Dalgarno, A., (2000) Phys. Rev. Lett., 84, p. 4577 Jonsell, S., Saenz, A., Froelich, P., Zygelman, B., Dalgarno, A., (2001) Phys. Rev. A, 64, p. 052712 Armour, E.A.G., Chamberlain, C.W., (2001) New Directions in Antimatter Chemistry and Physics, , C.M. Surko, & F.A. Gianturco. The Netherlands: Kluwer Academic Publishers Armour, E.A.G., Chamberlain, C.W., (2002) J. Phys. B, 35, p. 489 Sinha, P.K., Ghosh, A.S., (2000) Euro. Phys. Lett., 49, p. 558 Sinha, P.K., Chaudhuri, P., Ghosh, A.S., (2003) Phys. Rev. A, 67, p. 052509 Sinha, P.K., Chaudhuri, P., Ghosh, A.S., (2004) Phys. Rev. A, 69, p. 014701 Sinha, P.K., Ghosh, A.S., (2003) Phys. Rev. A, 68, p. 022504 Winter, T.G., Lin, C.C., (1975) Phys. Rev. A, 12, p. 434 Strasburger, K., Chojnacki, H., (2002) Phys. Rev. Lett., 88, p. 163201