https://doi.org/10.1140/epja/i2016-16015-4
Regular Article - Theoretical Physics
Hyperons in nuclear matter from SU(3) chiral effective field theory
1
Physik Department, Technische Universität München, D-85747, Garching, Germany
2
Institute for Advanced Simulation, Jülich Center for Hadron Physics, Institut für Kernphysik, Forschungszentrum Jülich, D-52425, Jülich, Germany
3
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115, Bonn, Germany
4
ECT, Villa Tambosi, 38123, Villazzano (Trento), Italy
* e-mail: j.haidenbauer@fz-juelich.de
Received:
31
July
2015
Accepted:
30
September
2015
Published online:
28
January
2016
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 order with SU(3) symmetric low-energy constants. Furthermore, the underlying nucleon-nucleon interaction is also derived within chiral effective field theory. We present the single-particle potentials of 
and 
hyperons in symmetric and asymmetric nuclear matter computed with the continuous choice for intermediate spectra. The results are in good agreement with the empirical information. In particular, our calculation gives a repulsive -nuclear potential and a weak -nuclear spin-orbit force.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
