Baryon spectrum and the forces between quarks

Hadrons and Few-Body Physics

“…This is how Isgur, Karl and their collaborators convinced us that the quark model is far from being unfriendly, and actually can capture a lot of physics with minimal tools [25]. Their precursors were Dalitz et al [24,26], Hey et al [27], and their (friendly) competitors such as Gromes and Stamatescu [28] and many others.…”

An introduction to the quark model

“…14. Gromes and Stamatescu [140] pointed out that the upper part survives if the HO is perturbed by a symmetric 3-body potential, while the [56, 0 + ] decouples. The same conclusion was reached by Taxil et al [141], in the more general situation of a nearly hypercentral potential.…”

Stability of the pentaquark in a naive string model

“…However, there is no reason to use additive rule (1) for the confining part, although it has been often adopted as a tentative approximation. For baryons, a Y -shape interaction has been suggested years ago [20], and often rediscovered either in models or in attempts to solve the QCD in the strong coupling limit [21][22][23][24][25][26]. This interaction is now confirmed by lattice QCD [27] (for further refs., see., e.g., [28]).…”