Faddeev calculation of pentaquark Θ in the Nambu-Jona-Lasinio model-based diquark picture


A Bethe-Salpeter-Faddeev (BSF) calculation is performed for the pentaquark Θ+ in the diquark picture of Jaffe and Wilczek in which Θ+ is a diquark-diquark-s̄ three-body system. Nambu-Jona-Lasinio (NJL) model is used to calculate the lowest order diagrams in the two-body scatterings of s̄D andDD. With the use of coupling constants determined from the meson… (More)


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