Resonance in positron-helium scattering at medium energy

Chaudhuri, P.; Adhikari, S. K.; Ghosh, A. S.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/32407

Title:

Resonance in positron-helium scattering at medium energy

Author(s):

Institution:

INDIAN ASSOC CULTIVAT SCI
Universidade Estadual Paulista (UNESP)

ISSN:

0953-4075

Abstract:

A narrow S-wave resonance has been found in the positron-helium system at about 30 eV, using the close-coupling approach, in excitation and rearrangement cross sections to He(1s2s), He(1s2p), Ps(1s) and Ps(2s) states by employing different combinations of the following basis functions: He(1s1s), He(1s2s), He(1s2p), Ps(1s) and Ps(2s), where Ps stands for the positronium atom.

Issue Date:

28-Jan-1997

Citation:

Journal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 30, n. 2, p. L81-L85, 1997.

Time Duration:

L81-L85

Publisher:

Iop Publishing Ltd

Source:

http://dx.doi.org/10.1088/0953-4075/30/2/009

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/32407

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