Towards the unified description of light and heavy hadrons in the bag model approach

Details Towards the unified description of light and heavy hadrons in the bag model approach Towards the unified description of light and heavy hadrons in the bag model approach

2004-03-09

arxiv.org/abs/hep-ph/0403094v2

Nucl.Phys. A741 (2004) 179-199

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 11 tables

Scientific paper

10.1016/j.nuclphysa.2004.05.017

Mass spectra of ground state hadrons containing u-, d-, s-, c-quarks as well as some lightest hadrons containing b-quarks are calculated on the basis of a slightly modified bag model. The center-of-mass motion corrections are incorporated using a wavepacket projection with Gaussian parametrization of the distribution amplitude. We use running coupling constant and also allow the effective quark mass to be scale-dependent. The impact of these modifications on the hadron mass spectrum is investigated. A comparison of the predicted mass values with the experimental data demonstrates that the modified bag model is sufficiently flexible to provide a satisfactory description of light and heavy hadrons (mesons and baryons) in a single consistent framework.

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