A lattice study of the masses of singlet 0++ mesons

Details A lattice study of the masses of singlet 0++ mesons A lattice study of the masses of singlet 0++ mesons

2006-08-31

arxiv.org/abs/hep-lat/0608026v1

Phys.Rev.D74:114504,2006

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

10.1103/PhysRevD.74.114504

We compute the masses of the flavour singlet 0++ mesons using (n_f=2) unquenched lattice QCD with the Iwasaki and Wilson gauge actions. Both fermionic and glueball interpolating operators are used to create the states. The mass of the lightest 0++ meson is suppressed relative to the mass of the 0++ glueball in quenched QCD at an equivalent lattice spacing. We discuss two possible physical reasons for this.

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