Positronium binding to potassium and other alkali atoms
作者： J Mitroy , G Ryzhikh
DOI: 10.1088/0953-4075/32/15/314
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摘要: The fixed-core stochastic variational method has been used to demonstrate the existence of an electronically stable ground state for potassium positride, KPs, with a binding energy 0.003 275 Hartree. 2 annihilation rate 2.001 × 109 s-1 was almost same as rates computed previously LiPs and NaPs. Analysis radial expectation values, e--e+ correlation function reveal that KPs can be regarded Ps cluster moving in field neutral atom.
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