Narrow Near-Threshold Resonance in e+-He+ Scattering

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（1）
• 页码范围: 79-81
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/1/013101

摘要

An independent alternative calculation is performed for narrow near-threshold resonances in the e+-He+ system using the stabilization method in the framework of hyperspherical coordinates (HSSM).A narrow resonance at Er =-0.249995 with width T =1.9 × 10-5,associated with the He2+-Ps(n =1) threshold is confirmed.The resonances around the energies -0.365 and -0.195,predicted by Bhatia and Drachman [Phys.Rev.A 42 (1990)5117] and confirmed by Ho [Phys.Rev.A 53 (1996)3165],do not appear in our calculations.