Efimov States in Nuclear and Particle Physics

Details Efimov States in Nuclear and Particle Physics Efimov States in Nuclear and Particle Physics

2010-01-12

arxiv.org/abs/1001.1981v1

Ann.Rev.Nucl.Part.Sci.60:207-236,2010

Physics

Nuclear Physics

Nuclear Theory

Invited review for Annual Review of Nuclear and Particle Science

Scientific paper

10.1146/annurev.nucl.012809.1044

Particles with resonant short-range interactions have universal properties that do not depend on the details of their structure or their interactions at short distances. In the three-body system, these properties include the existence of a geometric spectrum of three-body Efimov states and a discrete scaling symmetry leading to log-periodic dependence of observables on the scattering length. Similar universal properties appear in the four-body system and possibly higher-body systems as well. For example, universal four-body states have recently been predicted and observed in experiment. These phenomena are often referred to as "Efimov Physics". We review their theoretical description and discuss applications in different areas of physics with a special emphasis on nuclear and particle physics.

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