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Bibliographic Details
Main Authors: Raposo, André Baião, Bulava, John, Green, Jeremy R., Hanlon, Andrew D., Laudicina, Davide, Lazarow, Malcolm, Morningstar, Colin, Nicholson, Amy, Romero-López, Fernando, Salg, Miguel, Walker-Loud, André, Wittig, Hartmut
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.00698
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Table of Contents:
  • We present preliminary results on the $I=0$, $S=-2$ $H$ dibaryon in $N_{\rm f}=2+1$ QCD. The calculation is performed with heavier-than-physical quarks ($m_π\approx 280$ MeV) on a single CLS ensemble. Correlation matrices are constructed using the distillation technique and the three relevant channels, $ΛΛ$, $NΞ$, $ΣΣ$, are investigated to determine the interacting spectrum relevant for $S$-wave across multiple momentum frames. The scattering amplitude is determined by solving the corresponding two-body quantization condition. These preliminary results are part of the ongoing efforts to determine the properties of di-hyperons and to establish whether the $H$ dibaryon exists down to physical quark masses.