1209.2994 (T. G. Steele et al.)

Chiral-Symmetry-Violating Effects and Near-Maximal Mixing of Scalar
Gluonium and Quark Mesons    [PDF]

T. G. Steele, D. Harnett, R. T. Kleiv, K. Moats

Gaussian QCD sum-rules are used to analyze all possible two-point correlation functions of scalar gluonic and quark currents. The independent predictions of the masses and relative coupling strengths from the different correlators are remarkably consistent with a scenario of two scalar states that couple to nearly-maximal mixtures of quark and gluonic currents.

View original: http://arxiv.org/abs/1209.2994