Quark motional effects on the interquark potential in baryons - High Energy Physics - PhenomenologyReport as inadecuate




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Abstract: We study the heavy-heavy-light quark $QQq$ system in a non-relativisticpotential model, and investigate the quark motional effect on theinter-two-quark potential in baryons. We adopt the Hamiltonian with the staticthree-quark potential which is obtained by the first-principle calculation oflattice QCD, rather than the two-body force in ordinary quark models. Using therenormalization-group inspired variational method in discretized space, wecalculate the ground-state energy of $QQq$ systems and the light-quark spatialdistribution. We find that the effective string tension between the two heavyquarks is reduced compared to the static three-quark case. This reduction ofthe effective string tension originates from the geometrical difference betweenthe inter-quark distance and the flux-tube length, and is conjectured to be ageneral property for baryons.



Author: Arata Yamamoto Kyoto U., Hideo Suganuma Kyoto U.

Source: https://arxiv.org/







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