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arxiv: 1012.3812 · v2 · pith:N54SE2MEnew · submitted 2010-12-17 · ✦ hep-lat · hep-ph· nucl-th

Evidence for a Bound H-dibaryon from Lattice QCD

S.R. Beane , E. Chang , W. Detmold , B. Joo , H.W. Lin , T.C. Luu , K. Orginos , A. Parreno
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M.J. Savage A. Torok A. Walker-Loud (NPLQCD Collaboration)
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classification ✦ hep-lat hep-phnucl-th
keywords boundh-dibaryonlatticeevidencemasspionspatialanisotropic
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We present evidence for the existence of a bound H-dibaryon, an I=0, J=0, s=-2 state with valence quark structure uuddss, at a pion mass of m_pi ~ 389 MeV. Using the results of Lattice QCD calculations performed on four ensembles of anisotropic clover gauge-field configurations, with spatial extents of L ~ 2.0, 2.5, 3.0 and 3.9 fm at a spatial lattice spacing of b ~ 0.123 fm, we find an H-dibaryon bound by B = 16.6 +- 2.1 +- 4.6 MeV at a pion mass of m_pi ~ 389 MeV.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Finite-volume analysis of the $H$-dibaryon including left-hand-cut effects

    hep-lat 2026-05 unverdicted novelty 6.0

    Finite-volume N/D analysis with left-hand cuts applied to lattice data shows a mild but statistically significant effect on H-dibaryon binding energy compared to Lüscher quantization.