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- The University of OsakaJP9 papers
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7 papers · 1 filter
Light scalar mesons in QCD sum rules with inclusion of instantons
J. Zhang, H. Y. Jin, Z. F. Zhang +2
The light scalar meson nonet above 1 GeV ({\it i.e.\}the , and ) are studied within the framework of QCD sum rules. In conventional QCD sum rules, the…
Renormalization Group Determination of the Five-Loop Effective Potential for Massless Scalar Field Theory
F. A. Chishtie, D. G. C. McKeon, T. G. Steele
The five-loop effective potential and the associated summation of subleading logarithms for O(4) globally-symmetric massless field theory in the Coleman-Weinberg renormaliza…
A Unique Determination of the Effective Potential in Terms of Renormalization Group Functions
F. A. Chishtie, T. Hanif, D. G. C. McKeon +1
The perturbative effective potential V in the massless model with a global O(N) symmetry is uniquely determined to all orders by the renormalization group functions alone wh…
Light Four-quark States and New Observations by BES
Ailin Zhang, Tao Huang, Tom Steele
Four-quark states are discussed within the constituent quark model. Incompleteness of existed studies of four-quark state with QCD sum rule is analyzed. The masses of diquark clust…
Diquark and light four-quark states
Ailin Zhang, Tao Huang, T. G. Steele
Four-quark states with different internal clusters are discussed within the constituent quark model. It is pointed out that the diquark concept is not meaningful in the constructio…
Trailing Edge Unification via an Intermediate Pati-Salam Group
V. Elias, T. G. Steele
We demonstrate to two-loop order that an intermediate symmetrically embedded Pati-Salam level of symmetry is all that is necessary to accommod…