Effects of non-ideality of classical plasmas on the 1S<i>e</i> resonance states in H−

The effects of the non-ideality (NI) classical plasmas on 1Se resonance states negative ion hydrogen (H−) have been investigated theoretically by using stabilization method. organized effect plasma charged particles is represented a pseudopotential, which depends Debye length D and parameter γ. Densities as function γ are calculated employing highly correlated extensive basis set. Convergence parameters (energy width) ensured increasing number terms in basis. Three found to emerge below H(4S) excitation threshold. Our present results for lowest lying plasma-free cases well weakly coupled excellent agreement with established literature. An study carried out explore changes three due NI. It that, given length, energy increases, width decreases non-ideality.