Journal
NUCLEAR PHYSICS A
Volume 676, Issue -, Pages 357-370Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0375-9474(00)00205-0
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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 rakes place which requires the introduction of a single three-body force at leading order. With one fitted parameter we iind 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. (C) 2000 Elsevier Science B.V. All rights reserved.
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