Hyperon-nucleon potentials from lattice QCD

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dc.creatorNemura, H.
dc.creatorIshii, N.
dc.creatorAoki, S.
dc.creatorHatsuda, T.
dc.date2007-10-19
dc.date.accessioned2026-07-07T11:53:41Z
dc.date.available2026-07-07T11:53:41Z
dc.descriptionWe calculate $pΞ^0$ potentials from the equal-time Bethe-Salpeter amplitude measured in the quenched QCD simulation with the spatial lattice volume, (4.4 fm)$^3$. The standard Wilson gauge action with the gauge coupling $β=5.7$ on $32^4$ lattice together with the standard Wilson quark action are used. The hopping parameter $κ_{ud}=0.1678$ is chosen for $u$ and $d$ quarks, which corresponds to $m_π\simeq 0.37$ GeV. The physical strange quark mass is used by taking the parameter $κ_s=0.1643$ which is deduced from the physical $K$ meson mass. The lattice spacing $a=0.1420$ fm is determined by the physical $ρ$ meson mass. We find that the $pΞ^0$ potential has strong spin dependence. Strong repulsive core is found in $^1S_0$ channel while the effective central potential in the $^3S_1$ channel has relatively weak repulsive core. The potentials also have weak attractive parts in the medium to long distance region (0.6 fm $\lsim r \lsim 1.2$ fm) in both of the $^1S_0$ and $^3S_1$ channels.
dc.descriptionUTCCS-P-38, UT-554, TKYNT-07-16, 7pages, talk presented at the XXV International Symposium on Lattice Field Theory (Lattice 2007), 30 Jul - 4 Aug 2007, Regensburg, Germany
dc.identifierhttps://arxiv.org/abs/0710.3622
dc.identifierhttp://arxiv.org/abs/0710.3622
dc.identifierPoSLAT2007:156,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204628
dc.subjectHigh Energy Physics - Lattice
dc.titleHyperon-nucleon potentials from lattice QCD
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