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arXiv · 1109.3590

To bind or not to bind: The H-dibaryon in light of chiral effective field theory

J. Haidenbauer·Ulf-G. Meißner
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Abstract

We analyse the quark mass dependence of the binding energy of the H-dibaryon in the framework of chiral effective field theory. We show that the SU(3) breaking effects induced by the differences of the pertinent two-baryon thresholds (Lambda-Lambda, Xi-N, Sigma-Sigma) have a very pronounced impact that need to be incorporated properly in future lattice QCD simulations. We also point out that if the H-dibaryon is a two-baryon bound state, its dominant component is Xi-N rather than Lambda-Lambda, which is a consequence of the approximate SU(3) flavor symmetry of the two-baryon interactions.

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J. Haidenbauer, Ulf-G. Meißner. 2011-09-16. To bind or not to bind: The H-dibaryon in light of chiral effective field theory. https://doi.org/10.1016/j.physletb.2011.10.070

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