Two, three, many body systems involving mesons

Two, three, many body systems involving mesons

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Two, three, many body systems involving mesons

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Oset Báguena, Eulogio Perfil; Martínez Torres, Alberto; Khemchandani, K. P.; Roca Zamora, Luis; Yamagata-Sekihara, Junko
This document is a artículoDate2012

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In this talk we show recent developments on few body systems involving mesons. We report on an approach to Faddeev equations using chiral unitary dynamics, where an explicit cancellation of the two body off shell amplitude with three body forces stemming from the same chiral Lagrangians takes place. This removal of the unphysical off shell part of the amplitudes is most welcome and renders the approach unambiguous, showing that only on shell two body amplitudes need to be used. Within this approach, systems of two mesons and one baryon are studied, reproducing properties of the low lying 1/2+ states. On the other hand we also report on multirho and K∗ multirho states which can be associated to known meson resonances of high spin.

    Oset Báguena, Eulogio Martínez Torres, Alberto Khemchandani, K. P. Roca Zamora, Luis Yamagata-Sekihara, Junko 2012 Two, three, many body systems involving mesons Progress in Particle and Nuclear Physics 67 2 455 460

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