2008/12/12 by Chen, Ying
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.0812.2319
This work presents a new phenomenological description of QCD vacuum where the color background field is depicted by a constant parallel vector with amplitude proportional to σ∼ 0.28 GeV2. The familiar Regge relation can be derived directly in a classic meaning. A new mass formula of hadrons are conjectured to give a very consistent description of hadron mass spectra. The lower bounds of the baryon mass are determined to be √(3σ) for nucleon and √(5σ) for isospin-3/2 baryon. In the meanwhile, the mass-square differences of 1 3 S1 and 1 1 S0 meson states are obtained to be 2 σ. We also predict the mass of the lowest four-quark state to be √(4σ), which favors the a0(980) and f0(980) to be four-quark candidates. On the other hand, the effective heavy quark confinement potential is a direct result of this model.