Resonances for positron–helium and positron–lithium systems in kappa-distribution plasma

• المؤلفون الرئيسيون: Jiang, Zi Shi, Gao, Ya Chen, Kar, Sabyasachi, Ratnavelu, Kurunathan
• التنسيق: مقال
• منشور في: IOP Publishing 2018
• الموضوعات: Q Science (General); QA Mathematics; QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• الوصول للمادة أونلاين: http://eprints.um.edu.my/21737/; https://doi.org/10.1088/1674-1056/27/12/123402
• المؤسسة: Universiti Malaya

S-wave resonances of positron-helium and positron-lithium systems in kappa-distribution plasmas are investigated using Hylleraas-type wave functions in the framework of the stabilization method. A model potential approach is used to represent the interactions between the outer electron, the positron and the core. The resonance parameters (position and width) of positron-helium and positron-lithium systems below the Ps(2s) threshold are reported as a function of screening parameter and spectral index of plasma.