Four-nucleon force in chiral effective field theory

Abstract

We derive the leading contribution to the four-nucleon force within the framework of chiral effective field theory. It is governed by the exchange of pions and the lowest-order nucleon-nucleon contact interaction and includes effects due to the nonlinear pion-nucleon couplings and the pion self interactions constrained by the chiral symmetry of QCD. The resulting four-nucleon force does not contain any unknown parameters and can be tested in few- and many-nucleon studies.

4 pages, 4 figures

References in corpus (2)

• Few-Nucleon Forces and Systems in Chiral Effective Field Theory
• Renormalization of One-Pion Exchange and Power Counting

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