Four-nucleon force in chiral effective field theory

Details Four-nucleon force in chiral effective field theory Four-nucleon force in chiral effective field theory

2005-11-07

arxiv.org/abs/nucl-th/0511025v1

Phys.Lett.B639:456-461,2006

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures

Scientific paper

10.1016/j.physletb.2006.06.046

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.

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