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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.00698 |
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| _version_ | 1866911475452346368 |
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| author | 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 |
| author_facet | 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 |
| 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_00698 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Preliminary study of the $H$ dibaryon in $N_{\rm f}=2+1$ lattice QCD 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 High Energy Physics - Lattice 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. |
| title | Preliminary study of the $H$ dibaryon in $N_{\rm f}=2+1$ lattice QCD |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2603.00698 |