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Electron affinity of exotic systems under Debye plasma
Author(s) -
Bhattacharyya S.,
Sil A. N.,
Mukherjee T. K.,
Mukherjee P. K.,
Vasu P.
Publication year - 2006
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.21228
Subject(s) - electron affinity (data page) , muonium , debye , plasma , electron , instability , atomic physics , debye length , coulomb , electronic correlation , quantum , formalism (music) , chemistry , physics , condensed matter physics , quantum mechanics , molecule , art , musical , hyperfine structure , visual arts
Abstract Electron affinity of plasma embedded muonium (μ + e − ) and pionium (π + e − ) has been estimated using a general three‐body formalism within variational framework. Electron correlation is taken care of using extended Hylleraas basis sets. The stability of the three‐body systems have been studied under the Debye screening model of the plasma, which changes the Coulombic potential to the screened Coulomb one. The electron affinity of the muonium and pionium is maximum for free systems, and it decreases gradually toward zero with increase of the plasma strength, which tends to push the three‐body system toward gradual instability. The electron correlation contribution to the affinity has been analyzed. © 2006 Wiley Periodicals, Inc. Int J Quantum Chem, 2007