Scalar glueballs and friends

Scalar Glueballs and Friends

The f0(1500) is identified in three glueball favoured production mechanisms: pp̄ annihilation, ψ → γf0 and Central Production. The production rate for glueballs in ψ → γG has been quantified and the f0(1500) is found to be consistent with a glueball qq̄ mixture. We illustrate a remarkable property of central production where kinematic cuts appear to make a systematic separation between glueballs ...

Revisiting Scalar Glueballs

0 Mixing of scalar glueballs and flavour - singlet scalar mesons

We discuss in detail the extraction of hadronic mixing strengths from lattice studies. We apply this to the mixing of a scalar glueball and a scalar meson in the quenched approximation. We also measure correlations appropriate for flavour-singlet scalar mesons using dynamical quark configurations from UKQCD. This enables us to compare the results from the quenched study of the mixing with the d...

Scalar and Tensor Glueballs on Asymmetric Coarse Lattices

Scalar and tensor glueball spectrum is studied using an improved gluonic action on asymmetric lattices in the pure SU(3) gauge theory. The smallest spatial lattice spacing is about 0.08fm which makes the extrapolation to the continuum limit more reliable. In particular, attention is paid to the scalar glueball mass which is known to have problems in the extrapolation. Converting our lattice res...

Mixing of Scalar Glueballs and Flavour-singlet Scalar Mesons Ukqcd Collaboration

We discuss in detail the extraction of hadronic mixing strengths from lattice studies. We apply this to the mixing of a scalar glueball and a scalar meson in the quenched approximation. We also measure correlations appropriate for flavour-singlet scalar mesons using dynamical quark configurations from UKQCD. This enables us to compare the results from the quenched study of the mixing with the d...