Subleading contributions to the three-nucleon contact interaction

Details Subleading contributions to the three-nucleon contact interaction Subleading contributions to the three-nucleon contact interaction

2011-02-23

arxiv.org/abs/1102.4799v2

Phys.Rev.C84:014001,2011

Physics

Nuclear Physics

Nuclear Theory

11 pages. References added; matches the journal version

Scientific paper

10.1103/PhysRevC.84.014001

We obtain a minimal form of the two-derivative three-nucleon contact Lagrangian, by imposing all constraints deriving from discrete symmetries, Fierz identities and Poincare' covariance. The resulting interaction, depending on 10 unknown low-energy constants, leads to a three-nucleon potential which we give in a local form in configuration space. We also consider the leading (no-derivative) four-nucleon interaction and show that there exists only one independent operator.

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