Hyperons in nuclear matter from SU(3) chiral effective field theory

. 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 deri...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2016, Vol.52 (1), Article 15
Main Authors: Petschauer, S., Haidenbauer, J., Kaiser, N., Meißner, Ulf-G., Weise, W.
Format: Article
Language:English
Subjects:
Exotic Matter in Neutron Stars
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
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Summary:. 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.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2016-16015-4