- Published on 02 February 2011
A key to our understanding of Quantum Chromodynamics (QCD) in the strong regime is our ability to reproduce the hadronic excitation spectrum. Up to now, and due to their limited predictive power, quark models forecast of this spectrum at high excitation energies is unsatisfactory and is dubbed ``the missing resonances problem”. To explore the high excitation energies in the hadron spectrum production or scattering of heavier mesons from a nucleon target is essential.
- Published on 07 August 2006
EPJ A broadens its scope in heavy ion physics by merging with the Acta Physica Hungarica A - Heavy Ion Physics (APH A) as of January 1st, 2007. APH A, a well respected journal in the field has emerged from the Acta Physics Hungarica, initially covering all areas of physics, in the 1990s.
See also the Letter of the Editor of APH.