FORMATION OF HEH-2 AND HE MIXTURES( FROM POSITRON INTERACTIONS WITH H)

Authors
XU J HULETT LD MOXOM J WU W DATZ S SCHRADER DM
Citation
J. Xu et al., FORMATION OF HEH-2 AND HE MIXTURES( FROM POSITRON INTERACTIONS WITH H), Physical review. A, 56(6), 1997, pp. 4373-4376
Citations number
19
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
56
Issue
6
Year of publication
1997
Pages
4373 - 4376
Database
ISI
SICI code
1050-2947(1997)56:6<4373:FOHAHM>2.0.ZU;2-I
Abstract
We have observed the production of HeH+ ions by the bombardment of gas eous mixtures of H-2 and He with slow positrons and measured its depen dence on the positron energy. The formation is believed to involve vib rational excitation of H-2(+) via positronium formation, followed by p roton transfer from H-2(+) to He. The significance of these results wi th respect to astrophysics is discussed. [S1050-2947(97)51012-2].