Positron scattering from hydrogen atom in dense quantum plasmas: Positronium formation in Rydberg states

摘要: Effects of dense quantum plasmas on positronium (Ps) formation in an arbitrary nlm–state the scattering positrons from ground state hydrogen atoms have been investigated within framework a distorted wave theory that incorporates effect screened dipole polarization potential. The interaction charged particles has modeled by modified Debye-Huckel plasma screening structures differential and total cross sections explored for various incident positron energies range 20–300 eV. For free atomic case, our results are conformity with existing available literature. It found small effects, section presents oscillatory behaviour. To best knowledge, this is first attempt to estimate effects Ps Rydberg states plasmas.