TY - JOUR AU - Roca, L. AU - Oset, E. PY - 2013 DA - 2013// TI - Isospin 0 and 1 resonances from pi Sigma photoproduction data T2 - Phys. Rev. C JO - Physical Review C SP - 055206 EP - 7pp VL - 88 IS - 5 PB - Amer Physical Soc AB - Recently we presented a successful strategy to extract the position of the two Lambda ( 1405) poles from experimental photoproduction data on the gamma p -> K+pi(0)Sigma(0) reaction at Jefferson Lab. Following a similar strategy, we extend the previous method to incorporate also the isospin 1 component which allows us to consider in addition the experimental data on gamma p -> K+pi(+/-)Sigma(-/+). The idea is based on considering a production mechanism as model independent as possible and implementing the final state interaction of the final meson-baryon pair based on small modifications of the unitary chiral perturbation theory amplitudes. Good fits to the data are obtained with this procedure, by means of which we can also predict the cross sections for the K- p -> (K) over barN, pi Sigma, and pi Lambda reactions for the different charge channels. Besides the two poles found for the Lambda(1405) resonance, we discuss the possible existence of an isospin 1 resonance in the vicinity of the (K) over barN threshold. SN - 0556-2813 UR - http://arxiv.org/abs/1307.5752 UR - https://doi.org/10.1103/PhysRevC.88.055206 DO - 10.1103/PhysRevC.88.055206 LA - English N1 - WOS:000327315800008 ID - Roca+Oset2013 ER -