Klempt, Eberhard, Richard, Jean-Marc
About 120 baryons and baryon resonances are known, from the abundant nucleon with $u$ and $d$ light-quark constituents up to the recently discovered $\Omega_b^-=bss$, and the $\Xi_b^-=bsd$ which...
Diquark correlations in baryon spectroscopy and holographic QCD (2008)
Forkel, Hilmar, Klempt, Eberhard
We introduce an improved mass formula for the nucleon and delta resonances and show how it emerges from AdS/QCD in a straightforward extension of the 'metric soft wall' gravity dual. The resulting...
Glueballs, Hybrids and the Standard Model: Hadron '97 Summary (Experiment) (2008)
. HADRON '97 covered a wide spectrum of particle physics, from high-Q 2 events in e + -proton collisions at DESY to the recent discovery of 1 \Gamma+ exotic mesons. This paper reviews progress...
Exotic mesons: status and future (2007)
The evidence for the existence of mesons with exotic quantum numbers and of hybrid candidates with non-exotic quantum numbers is critically reviewed, including candidates with hidden charm. Aims and...
Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts (2007)
Klempt, Eberhard, Zaitsev, Alexander
The spectroscopy of light and heavy mesons is reviewed with emphasis on glueballs, hybrids, and tetraquarks.
The Glueball Candidate \eta(1440) as \eta Radial Excitation (2004)
The Particle Data Group decided to split the $\eta(1440)$ into two states, called $\eta_L$ and $\eta_H$. The $\eta(1295)$ and the $\eta_H$ are supposed to be the radial excitations of the $\eta$ and...
Hadron Spectroscopy without Constituent Glue (2004)
Glueballs and hybrids are predicted to exist but searches for them have failed to provide conclusive evidence. One--gluon exchange is not an important part of strong interactions in this energy...
Hadron spectroscopy has received revitalised interest due to the discovery of states with unexpected properties. Discussed are the recent findings at BABAR, CLEO, BELLE and BES. A detailed report is...
Do parity doublets in the baryon spectrum reflect restoration of chiral symmetry? (2002)
We discuss the mass spectrum of highly-excited nucleon and $\Delta^*$ resonances. The spectrum exhibits parity doublets, pairs of resonances of identical total angular momentum J but of opposite...
A mass formula for baryon resonances (2002)
Light-baryon resonances with u,d, and s quarks only can be classified using the non-relativistic quark model. When we assign to baryon resonances with total angular momenta J intrinsic orbital...