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Differential cross sections for target excitation and positronium formation in positron-helium scattering
(American Physical Soc, 1998-02-01)
Positronium formation and target excitation in positron-helium scattering have been investigated using the close-coupling approximation with realistic wave functions for the positronium and helium atoms. The following eight ...
Differential cross sections for target excitation and positronium formation in positron-helium scattering
(1998-01-01)
Positronium formation and target excitation in positron-helium scattering have been investigated using the close-coupling approximation with realistic wave functions for the positronium and helium atoms. The following eight ...
Differential cross sections for target excitation and positronium formation in positron-helium scattering
(American Physical Soc, 1998-02-01)
Positronium formation and target excitation in positron-helium scattering have been investigated using the close-coupling approximation with realistic wave functions for the positronium and helium atoms. The following eight ...
Effect of electron correlation on positronium formation in positron-helium scattering
(Springer, 1999-02-01)
A three-parameter correlated wave function for the helium ground state is used to study the scattering reaction e(+) + He --> He+ + Ps, where Ps stands for positronium atom. An exact analytical expression is constructed ...
Effect of electron correlation on positronium formation in positron-helium scattering
(Springer, 1999-02-01)
A three-parameter correlated wave function for the helium ground state is used to study the scattering reaction e(+) + He --> He+ + Ps, where Ps stands for positronium atom. An exact analytical expression is constructed ...
Variational calculation of positronium-helium-atom scattering length
(2001-01-01)
We present a variational basis-set calculational scheme for elastic scattering of positronium atom by helium atom in S wave and apply it to the calculation of the scattering length. Highly correlated trial functions with ...
Close-coupling calculations of elastic and inelastic positron-helium scattering
(Iop Publishing Ltd, 1999-01-14)
Elastic and inelastic positron-helium scattering have been investigated in different partial waves at medium energies using the close-coupling approximation with realistic wavefunctions employing the following states: ...
Positron-helium scattering: Resonance and differential cross sections
(1998-03-02)
We study positron-helium scattering using close coupling approximation (CCA) employing different combinations of the following basis functions: He(1s1s), He(1s2s), He(1s2p), Ps(1s). and Ps(2s), where Ps stands for the ...
Close-coupling calculations of elastic and inelastic positron-helium scattering
(Iop Publishing Ltd, 1999-01-14)
Elastic and inelastic positron-helium scattering have been investigated in different partial waves at medium energies using the close-coupling approximation with realistic wavefunctions employing the following states: ...
Positron-helium scattering: Resonance and differential cross sections
(1998-03-02)
We study positron-helium scattering using close coupling approximation (CCA) employing different combinations of the following basis functions: He(1s1s), He(1s2s), He(1s2p), Ps(1s). and Ps(2s), where Ps stands for the ...