An Effective Theory for the Four-Body System with Short-Range Interactions
Abstract
Description
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.
Talk given at The Third Asia-Pacific Conference on Few-Body Problems, Nakhon Ratchasima, Thailand, July 2005
Talk given at The Third Asia-Pacific Conference on Few-Body Problems, Nakhon Ratchasima, Thailand, July 2005