Baryon spectroscopy

Baryons as relativistic three-quark bound states

“…Refs. [3,4,88,89] for reviews) in the development of hadron physics, one has to keep in mind that it was constructed without knowledge of the underlying dynamics of QCD. The very concept of quarks themselves was not apparent and instead, until the 1950s at least, the number of known hadrons was still few enough that they could be considered elementary.…”

“…There are many excellent reviews on the development of quark potential models [3,4,88,89] to which we refer the interested reader for details; here we only summarise a few key points. At the heart of the quark model is the assumption that the effective degrees of freedom are the constituent quarks, whose origin is not explicated and whose masses instead enter as parameters of the theory.…”

“…Additional terms in the potential can be motivated by one-gluon exchange and relativistic corrections, see e.g. [88,103,104,[110][111][112][113][114] and references therein. The progress of ref.…”

SU(6)⊃SU(3)⊗SU(2) and SU(8)⊃SU(4)⊗SU(2) Clebsch–Gordan coefficients

“…(See reviews in [4][5][6].) It was shown early that chiral symmetry, a powerful tool to extract information from QCD [7][8][9], and spin-flavor symmetry were not in conflict [10].…”

Search for exoticS=−2baryons inpp¯collisions ats=Abulencia1, Adelman2, Affolder3 et al. 2007Phys. Rev. D9030View full textAdd to dashboardCite

“…Most notably in the 1960's and 1970's there were searches for a Z * -baryon with positive strangeness in bubble chamber experiments with incident beams of pions and kaons, which ended with negative results. These earlier searches are summarized in detailed reviews by Hey and Kelly [1] and more recently by Jennings and Maltman [2].…”