Mass spectra of doubly heavy Omega_QQ' baryons

Details Mass spectra of doubly heavy Omega_QQ' baryons Mass spectra of doubly heavy Omega_QQ' baryons

2002-06-16

arxiv.org/abs/hep-ph/0206140v2

Phys.Rev.D66:034030,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, revtex4-file, 3 eps-figures, 5 tables, typos corrected

Scientific paper

10.1103/PhysRevD.66.034030

We evaluate the masses of baryons composed of two heavy quarks and a strange quark with account for spin-dependent splittings in the framework of potential model with the KKO potential motivated by QCD with a three-loop beta-function for the effective charge consistent with both the perturbative limit at short distances and linear confinement term at long distances between the quarks. The factorization of dynamics is supposed and explored in the nonrelativistic Schroedinger equation for the motion in the system of two heavy quarks constituting the doubly heavy diquark and the strange quark interaction with the diquark. The limits of approach, its justification and uncertainties are discussed. Excited quasistable states are classified by the quantum numbers of heavy diquark composed by the heavy quarks of the same flavor.

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