Beane, Silas R.Chang, EmmanuelDetmold, WilliamJoo, B.Lin, H. W.Luu, Thomas C.Orginos, KostasParreño García, AssumptaSavage, Martin J.Torok, AaronWalker-Loud, AndréNPLQCD Collaboration2019-05-302019-05-302011-04-200031-9007https://hdl.handle.net/2445/134163We present evidence for the existence of a bound H dibaryon, an I = 0 , J = 0 , s = − 2 state with valence quark structure u u d d s s , 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 .4 p.application/pdfeng(c) American Physical Society, 2011Física de partículesExperimentsParticle physicsExperimentsinfo:eu-repo/semantics/article6061262019-05-30info:eu-repo/semantics/openAccess