2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82141We study the $K^+p\to π^+K^+n$ reaction with some kinematics suited to the production of the $Θ^+$ resonance recently observed and show that the measurement of cross sections and polarization observables can shed light on the spin,isospin and parity of the $Θ^+$ state.Contributed paper to the VIII International Conference on Hypernuclei and Strange Particle PhysicsNuclear Theorytext