%0 Journal Article
%T The role of vector-baryon channels and resonances in the gamma p -> K-0 Sigma(+) and gamma n -> K-0 Sigma(0) reactions near the K*Lambda threshold
%A Ramos, A.
%A Oset, E.
%J Physics Letters B
%D 2013
%V 727
%N 1-3
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F Ramos+Oset2013
%O WOS:000328518400041
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1681), last updated on Thu, 23 Jan 2014 11:51:43 +0000
%X We have studied the gamma p -> K-0 Sigma(+) reaction in the energy region around the K*Lambda and K*Sigma thresholds, where the CBELSA/TAPS cross section shows a sudden drop and the differential cross section experiences a transition from a forward-peaked distribution to a flat one. Our coupled-channel model incorporates the dynamics of the vector meson-baryon interaction which is obtained from the hidden gauge formalism. We find that the cross section in this energy region results from a delicate interference between amplitudes having K*Lambda and K*Sigma intermediate states. The sharp downfall is dictated by the presence of a nearby N* resonance produced by our model, a feature that we have employed to predict its properties. We also show results for the complementary gamma n -> K-0 Sigma(0) reaction, the measurement of which would test the mechanism proposed in this work.
%R 10.1016/j.physletb.2013.10.012
%U http://arxiv.org/abs/1304.7975
%U https://doi.org/10.1016/j.physletb.2013.10.012
%P 287-292