On the glueball spectrum in O(a) improved lattice QCD

@inproceedings{Hart2002OnTG,
  title={On the glueball spectrum in O(a) improved lattice QCD},
  author={Alistair Hart and M. Teper},
  year={2002}
}
We calculate the light `glueball' mass spectrum in N_f=2 lattice QCD using a fermion action that is non-perturbatively O(a) improved. We work at lattice spacings a ~0.1 fm and with quark masses that range down to about half the strange quark mass. We find the statistical errors to be moderate and under control on relatively small ensembles. We compare our mass spectrum to that of quenched QCD at the same value of a. Whilst the tensor mass is the same (within errors), the scalar mass is… CONTINUE READING

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