We review the present theoretical and empirical knowledge for α s, the fundamental
coupling underlying the interactions of quarks and gluons in Quantum Chromodynamics …

This article reviews recent theoretical developments in heavy-quarkonium physics from the
point of view of effective-field theories of QCD. We discuss nonrelativistic QCD and …

We numerically investigate the transition of the static quark-antiquark string into a static-light
meson-antimeson system. Improving noise reduction techniques, we are able to resolve the …

Many of the XYZ mesons discovered in the last decade can be identified as bound states in
Born-Oppenheimer (BO) potentials for a heavy quark and antiquark. They include …

We calculate glueball and torelon masses as well as the lowest lying hybrid potential in
addition to the static ground state potential in lattice simulations of QCD with two flavors of …

The energy spectrum of a system containing a static quark anti-quark pair is computed for a
wide range of source separations using lattice QCD with N f= 2+ 1 dynamical flavours. By …

We study the gauge sector of minimal walking technicolor, which is an SU (2) gauge theory
with nf= 2 flavors of Wilson fermions in the adjoint representation. Numerical simulations are …

We present a largely model-independent analysis of the lighter heavy quarkonium hybrids
based on the strong coupling regime of potential nonrelativistic QCD. We calculate the …

We present lattice results on the scalar D s meson and comment on the D sJ+(2317) state
recently discovered by BaBar and confirmed by CLEO, in view of a series of theoretical …

EXCITED CHARMED MESONS: OBSERVATIONS, ANALYSES AND PUZZLES | Modern
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