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5 papers · 2 filters
Scalar mesons in QCD and tests of the gluon content of the sigma
Stephan Narison
We summarize the different features of the scalar mesons from QCD spectral sum rule analyses of the two- and three-point functions. The results do not favour the u-bar u + d-bar d…
UV and IR divergences within Dimensional Regularization in Non-Commutative theories and Phenomenological Implications
Stephan Narison
Using Dimensional Regularization (DR) for some two-point functions of a prototype Non-Comutative (NC) ϕ^4 scalar theory in 4-dimensions, we explictly analyze, to one-loop, the IR a…
B^0_{d,s} - \bar{B}^0_{d,s} mass-differences from QCD spectral sum rules
Kaoru Hagiwara, Stephan Narison, Daisuke Nomura
We present the first QCD spectral sum rules analysis of the SU(3) breaking parameter ξand an improved estimate of the renormalization group invariant (RGI) bag constant \hat{B}_{B_…
QCD as a theory of hadrons (from partons to confinement)
Stephan Narison
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Light and heavy quark masses, Flavour breaking of chiral condensates, Meson weak leptonic decay constants in QCD
Stephan Narison
We review the present status for the determinations of the light and heavy quark masses, the light quark chiral condensate and the decay constants of light and heavy-light (pseudo)…