2000/04/28 by Ailin Zhang · 19 citations
Mathematics · Physics and Astronomy · #Bottom quark #Down quark #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Quark model #Quarkonium #Spin (aerodynamics) #State (computer science) #Top quark #Top quark condensate #Up quark #hep-ph
paper · pdf · doi:10.1103/physrevd.61.114021
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 61(11) (American Physical Society) · 10 pages, 4 ps figures, Latex
arxiv created 2000/04/28 · openalex publication_date 2000/05/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The spectra of some 0++ four-quark states, which are composed of qq pairs, are calculated in QCD. The light four-quark states are calculated using the traditional sum rules while four-quark states containing one heavy quark are computed in HQET. For constructing the interpolating currents, different couplings of the color and spin inside the qq pair are taken into account. It is found that the spin and color combination has little effect on the mass of the four-quark states.