Coulomb-Sturmian separable expansion approach: Three-body Faddeev calculations for Coulomb-like interactions

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.50· OSTI ID:286182

Papp, Z ^[1]; Plessas, W ^[2]

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1. Institute of Nuclear Research of the Hungarian Academy of Sciences, Bem ter 18/c, P.O. Box 51, H--4001 Debrecen (Hungary)
2. Institute for Theoretical Physics, University of Graz, Universitaetsplatz 5, A-8010 Graz (Austria)

We demonstrate the feasibility and efficiency of the Coulomb-Sturmian separable expansion method for generating accurate solutions of the Faddeev equations. Results obtained with this method are reported for several benchmark cases of bosonic and fermionic three-body systems. Correct bound-state results in agreement with the ones established in the literature are achieved for short-range interactions. We outline the formalism for the treatment of three-body Coulomb systems and present a bound-state calculation for a three-boson system interacting via Coulomb plus short-range forces. The corresponding result is in good agreement with the answer from a recent stochastic-variational-method calculation. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286182
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANALYTICAL SOLUTION
BOUND STATE
COULOMB FIELD
EXPANSION
FADDEEV EQUATIONS
THREE-BODY PROBLEM
VARIATIONAL METHODS