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Effective Theory of the Triton

P. F. Bedaque·H. -W. Hammer·U. van Kolck
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Abstract

We apply the effective field theory approach to the three-nucleon system. In particular, we consider S=1/2 neutron-deuteron scattering and the triton. We show that in this channel a unique nonperturbative renormalization takes place which requires the introduction of a single three-body force at leading order. With one fitted parameter we find a good description of low-energy data. Invariance under the renormalization group explains some universal features of the three-nucleon system ---such as the Thomas and Efimov effects and the Phillips line--- and the origin of SU(4) symmetry in nuclei.

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P. F. Bedaque, H. -W. Hammer, U. van Kolck. 2000-03-06. Effective Theory of the Triton. https://doi.org/10.1016/s0375-9474(00)00205-0

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