We present preliminary results on the I=0, S=-2 H dibaryon in N ₅=2+1 QCD. The calculation is performed with heavier-than-physical quarks (m_π 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.
Raposo et al. (2026) studied this question.