TY  - JOUR
AU  - Garzon, E. J.
AU  - Oset, E.
PY  - 2015
DA  - 2015//
TI  - Mixing of pseudoscalar-baryon and vector-baryon in the J(P)=1/2(-) sector and the N* (1535) and N* (1650) resonances
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 025201
EP  - 7pp
VL  - 91
IS  - 2
PB  - Amer Physical Soc
AB  - We study the meson-baryon interaction with J(P) = 1/2 using the hidden-gauge Lagrangians and mixing pseudoscalar meson-baryon with the vector meson-baryon states in a coupled channels scheme with pi N, eta N, K Lambda, K Sigma, rho N, and pi Delta (d wave). We fit the subtraction constants of each channel to the S-11 partial wave amplitude of the pi N scattering data extracted from the partial wave analysis of the George Washington group. We find two poles that we associate to the N*(1535) and the N*(1650) resonances, with negative subtraction constants of natural size, and compare the results with empirical determinations of these pole positions. We calculate the branching ratios for the different channels of each resonance and we find a good agreement with the experimental data. The cross section for the pi(-)p -> eta n scattering is also evaluated and compared with experiment.
SN  - 0556-2813
UR  - http://arxiv.org/abs/1411.3547
UR  - https://doi.org/10.1103/PhysRevC.91.025201
DO  - 10.1103/PhysRevC.91.025201
LA  - English
N1  - WOS:000349248700003
ID  - Garzon+Oset2015
ER  -