Cross-Ladder Diagrams Via Hierarchical Equations in the Light Front
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Springer
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Abstract
We calculate the correction to the propagator of two bosons up to the g (4) order in the cross-ladder approximation in the light front. The hierarchy of the coupled equations describe the propagator of two bosons in various cases, including the cross-ladder approximation. Our results show that the contribution of the pair is small and is limited to a range of bound state.
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Few-body Systems. Wien: Springer Wien, v. 56, n. 6-9, p. 593-598, 2015.
