Combining the recent lattice calculation of a0β(1450) and Ο(600)
mesons with the overlap fermion in the chiral regime with the pion mass less
than 300MeV, the quenched lattice calculation of the scalar glueball,
and the phenomenological study of the mixing of isoscalar scalar mesons
f0β(1710), f0β(1500), f0β(1370) through their decays, a simple pattern
for the light scalar mesons begins to emerge. Below 1 GeV, the scalar mesons
form a nonet of tetraquark mesoniums. Above 1 GeV, the nonent qqΛβ mesons
are made of an octet with largely unbroken SU(3) symmetry and a fairly good
singlet which is f0β(1370). f0β(1710) is identified as an almost pure
scalar glueball with a βΌ10 mixture of qqΛβ.Comment: 8 pages, 4 figure