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Open Access item Nature of the K-2*(1430), K-3*(1780), K-4*(2045), K-5*(2380), and K-6* as K*-multi-rho states

Authors:Yamagata-Sekihara, J.
Roca, L.
Oset, Eulogi
Issue Date:15-Nov-2010
Publisher:Institute of Physics Publishing
Citation:Physical Review - Section D - Particles and Fields 82 (9): 094017 (2010)
Abstract:We show that the K-2*(1430), K-3*(1780), K-4*(2045), K-5*(2380), and a not-yet-discovered K-6* resonance are basically molecules made of an increasing number of rho(770) and one K*(892) mesons. The idea relies on the fact that the vector-vector interaction in the s wave with spins aligned is very strong for both rho rho and K*rho. We extend a recent work, where several resonances showed up as multi-rho(770) molecules, to the strange sector including the K*(892) into the system. The resonant structures show up in the multibody scattering amplitudes, which are evaluated in terms of the unitary two-body vector-vector scattering amplitudes by using the fixed center approximation to the Faddeev equations.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevD.82.094017
URI:http://hdl.handle.net/10261/33083
ISSN:1550-7998
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