2011/03/31 by S. R. BEANE, S. R. Beane, E. Chang +19 · 1 citation
Physics and Astronomy · #Chiral perturbation theory #Extrapolation #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Lattice field theory #Particle physics theoretical and experimental studies #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-lat #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1142/s0217732311036978
published as Mod. Phys. Lett. A26: 2587, 2011 · 8 pages, 2 figures, 1 table; revised for the journal
arxiv created 2011/09/13 · openalex publication_date 2011/11/03 · arxiv updated 2015/05/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The current constraints from lattice QCD on the existence of the H-dibaryon are discussed. With only two significant lattice QCD calculations of the H-dibaryon binding energy at approximately the same lattice spacing, the forms of the chiral and continuum extrapolations to the physical point are not determined. In this brief report, we consider the constraints on the H-dibaryon imposed by two simple chiral extrapolations. In both instances, the extrapolation to the physical pion mass allows for a bound H-dibaryon or a near-threshold scattering state. Further lattice QCD calculations are required to clarify this situation.