Scalar Glueball, Scalar Quarkonia, and their Mixing

Simple item page
dc.creatorCheng, Hai-Yang
dc.creatorChua, Chun-Khiang
dc.creatorLiu, Keh-Fei
dc.date2006-07-19
dc.date2006-10-20
dc.date.accessioned2026-07-07T11:05:16Z
dc.date.available2026-07-07T11:05:16Z
dc.descriptionThe isosinglet scalar mesons $f_0(1710)$, $f_0(1500)$, $f_0(1370)$ and their mixing are studied. We employ two recent lattice results as the starting point; one is the isovector scalar meson $a_0(1450)$ which displays an unusual property of being nearly independent of quark mass for quark masses smaller than that of the strange, and the other is the scalar glueball mass at 1710 MeV in the quenched approximation. In the SU(3) symmetry limit, $f_0(1500)$ turns out to be a pure SU(3) octet and is degenerate with $a_0(1450)$, while $f_0(1370)$ is mainly an SU(3) singlet with a slight mixing with the scalar glueball which is the primary component of $f_0(1710)$. These features remain essentially unchanged even when SU(3) breaking is taken into account. We discuss the sources of SU(3) breaking and their consequences on flavor-dependent decays of these mesons. The observed enhancement of $ωf_0(1710)$ production over $ϕf_0(1710)$ in hadronic $J/ψ$ decays and the copious $f_0(1710)$ production in radiative $J/ψ$ decays lend further support to the prominent glueball nature of $f_0(1710)$.
dc.description16 pages; add discussions on the justification of the lattice results as input for this work, to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0607206
dc.identifierhttp://arxiv.org/abs/hep-ph/0607206
dc.identifierPhys.Rev.D74:094005,2006
dc.identifierdoi:10.1103/PhysRevD.74.094005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189154
dc.subjectHigh Energy Physics - Phenomenology
dc.titleScalar Glueball, Scalar Quarkonia, and their Mixing
dc.typetext

Files

Collections

arXiv