Hadrons from QCDNo Access
PROPERTIES OF SCALAR-QUARK SYSTEMS IN SU(3)c LATTICE QCD
https://doi.org/10.1142/S0217732308029344Cited by:1 (Source: Crossref)
Abstract
We perform the first study for the bound states of colored scalar particles ϕ (“scalar quarks”) in terms of mass generation with quenched SU(3)c lattice QCD. We investigate the bound states of ϕ, ϕ†ϕ and ϕϕϕ (“scalar-quark hadrons”), as well as the bound states of ϕ and quarks ψ, i.e., ϕ†ψ, ψψϕ and ϕϕψ (“chimera hadrons”). All these new-type hadrons including ϕ have a large mass of several GeV due to large quantum corrections by gluons, even for zero bare scalar-quark mass mϕ = 0 at a−1 ~ 1GeV. We find a similar mψ-dependence between ϕ†ψ and ϕϕψ, which indicates their similar structure due to the large mass of ϕ. From this study, we conjecture that all colored particles generally acquire a large effective mass due to dressed gluons.
PACS: 12.38.Gc, 12.38.Mh, 14.40.Gx, 25.75.Nq
