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An Effective Theory for the Four-Body System with Short-Range Interactions

L. Platter
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Abstract

We discuss the application of an effective theory with contact interactions to the non-relativistic four-body system with short-range interactions. We have computed the binding energies of the 4He tetramer and the alpha-particle. A well-known linear correlation between three- and four-body binding energies can be understood as a result of the absence of a four-body force at leading order within this framework. Further, we give results for the binding energies of the four-boson system in two spatial dimensions.

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L. Platter. 2005-11-01. An Effective Theory for the Four-Body System with Short-Range Interactions. https://arxiv.org/abs/nucl-th/0511003

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