Leading three-baryon forces from SU(3) chiral effective field theory Article Swipe

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Physics Strangeness Effective field theory Isospin Baryon Particle physics Field theory (psychology) Nuclear force Baryon number Lambda Nucleon Meson Chiral anomaly Space (punctuation) Theoretical physics Mathematical physics Quantum chromodynamics Quantum mechanics Philosophy Linguistics

S. Petschauer , Norbert Kaiser , J. Haidenbauer , Ulf-G. Meißner , W. Weise ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.1103/physrevc.93.014001 · OA: W2223460350

Leading three-baryon forces are derived within SU(3) chiral effective field\ntheory. Three classes of irreducible diagrams contribute: three-baryon contact\nterms, one-meson exchange and two-meson exchange diagrams. We provide the\nminimal non-relativistic terms of the chiral Lagrangian, that contribute to\nthese diagrams. SU(3) relations are given for the strangeness S=0 and -1\nsectors. In the strangeness-zero sector we recover the well-known three-nucleon\nforces from chiral effective field theory. Explicit expressions for the\nlambda-nucleon-nucleon chiral potential in isospin space are presented.\n