Resonance in positron-helium scattering at medium energy

被引：12

作者：

Chaudhuri, P ^{[1
]}

Adhikari, SK ^{[1
]}

Ghosh, AS ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI,DEPT THEORET PHYS,CALCUTTA 700032,W BENGAL,INDIA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1997年 / 30卷 / 02期

关键词：

D O I：

10.1088/0953-4075/30/2/009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：L81 / L85

页数：5

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