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Leading three-baryon forces from SU(3) chiral effective field theory
Stefan Petschauer, Norbert Kaiser, Johann Haidenbauer +2
Leading three-baryon forces are derived within SU(3) chiral effective field theory. Three classes of irreducible diagrams contribute: three-baryon contact terms, one-meson exchange…
Hyperons in nuclear matter from SU(3) chiral effective field theory
S. Petschauer, J. Haidenbauer, N. Kaiser +2
Brueckner theory is used to investigate the properties of hyperons in nuclear matter. The hyperon-nucleon interaction is taken from chiral effective field theory at next-to-leading…
Spin-polarized neutron matter at different orders of chiral effective field theory
F. Sammarruca, R. Machleidt, N. Kaiser
Spin-polarized neutron matter is studied using chiral two- and three-body forces. We focus, in particular, on predictions of the energy per particle in ferromagnetic neutron matter…
Three-pion exchange nucleon-nucleon potentials with virtual -isobar excitation
N. Kaiser
The nucleon-nucleon interaction arising from the exchange of three pions and the excitation of -isobars in intermediate states is studied. Approximating the -propagator…
Quartic isospin asymmetry energy of nuclear matter from chiral pion-nucleon dynamics
N. Kaiser
Based on a chiral approach to nuclear matter, we calculate the quartic term in the expansion of the equation of state of isospin-asymmetric nuclear matter. The contributions to the…
Thermodynamics of isospin-asymmetric nuclear matter from chiral effective field theory
Corbinian Wellenhofer, Jeremy W. Holt, Norbert Kaiser
The density and temperature dependence of the nuclear symmetry free energy is investigated using microscopic two- and three-body nuclear potentials constructed from chiral effectiv…
Parity violation in neutron capture on the proton: determining the weak pion-nucleon coupling
J. de Vries, N. Li, Ulf-G. Meißner +3
We investigate the parity-violating analyzing power in neutron capture on the proton at thermal energies in the framework of chiral effective field theory. By combining this analys…