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arXiv · 0705.3753

Strangeness S=-2 baryon-baryon interactions using chiral effective field theory

H. Polinder·J. Haidenbauer·U. -G. Meißner
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Abstract

We derive the leading order strangeness S=-2 baryon-baryon interactions in chiral effective field theory. The potential consists of contact terms without derivatives and of one-pseudoscalar-meson exchanges. The contact terms and the couplings of the pseudoscalar mesons to the baryons are related via SU(3) flavor symmetry to the S=-1 hyperon-nucleon channels. We show that the chiral effective field theory predictions with natural values for the low-energy constants agree with the experimental information in the S=-2 sector.

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H. Polinder, J. Haidenbauer, U. -G. Meißner. 2007-05-25. Strangeness S=-2 baryon-baryon interactions using chiral effective field theory. https://doi.org/10.1016/j.physletb.2007.07.045

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