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

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

2005-11-01

arxiv.org/abs/nucl-th/0511003v1

Physics

Nuclear Physics

Nuclear Theory

Talk given at The Third Asia-Pacific Conference on Few-Body Problems, Nakhon Ratchasima, Thailand, July 2005

Scientific paper

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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