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تسجيل مستخدم جديدProperties of Scalar-Quark Systems in SU(3)c Lattice QCD
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We perform the first study for the bound states of colored scalar particles $phi$ (scalar quarks) in terms of mass generation with quenched SU(3)$_c$ lattice QCD. We investigate the bound states of $phi$, $phi^daggerphi$ and $phiphiphi$ (scalar-quark hadrons), as well as the bound states of $phi$ and quarks $psi$, i.e., $phi^daggerpsi$, $psipsiphi$ and $phiphipsi$ (chimera hadrons). All these new-type hadrons including $phi$ have a large mass of several GeV due to large quantum corrections by gluons, even for zero bare scalar-quark mass $m_phi=0$ at $a^{-1}sim 1{rm GeV}$. We find a similar $m_psi$-dependence between $phi^daggerpsi$ and $phiphipsi$, which indicates their similar structure due to the large mass of $phi$. From this study, we conjecture that all colored particles generally acquire a large effective mass due to dressed gluons.
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