Details

Autor(en) / Beteiligte

• Beane, S R
• Chang, E
• Detmold, W
• Joo, B
• Lin, H W
• Luu, T C
• Orginos, K
• Parreño, A
• Savage, M J
• Torok, A
• Walker-Loud, A

Titel

Evidence for a bound H dibaryon from lattice QCD

Ist Teil von

• Physical review letters, 2011-04, Vol.106 (16), p.162001-162001, Article 162001

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2011

Quelle

APS

Beschreibungen/Notizen

• 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(π)∼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(s)∼0.123  fm, we find an H dibaryon bound by B(∞)(H)=16.6±2.1±4.6  MeV at a pion mass of m(π)∼389  MeV.