Hadronic Particles made of Multi-ρ(770) Mesons

摘要

We present a work (Roca and Oset in Phys. Rev. D 82, 054013, 2010) where we use the ρ ρ interaction in spin 2 and isospin 0 channel to show that the resonances ρ ₃(1690)(3−−), f ₄(2050)(4++), ρ ₅(2350)(5−−) and f ₆(2510)(6++) can be interpreted as few body systems made of an increasing number of ρ(770) particles. We use the fixed center approximation of the Faddeev equations to write the multi-body interaction in terms of the two-body scattering amplitudes. Very good agreement with the experimental masses is found.