Determination of the $mathbfSigma(1385)^0/Lambda(1405)$ ratio in p_s16p collisions at 3.5 GeV
Keywords
INSPIRE: ratio: (Sigma(1385) Lambda(1405)), cross section: measured, p p: scattering, HADES Author supplied: strangeness, resonances, kaon-nucleon interaction
Abstract
The aim of the present analysis is to determine the relative production cross sections of the $Lambda$(1405) and $Sigma(1385)^{0}$ resonances in p_s16p collisions at E$_{kin}$=3.5 GeV measured with HADES. Upper and lower limits have been determined for the ratio $sigma_{(Sigma(1385)^{0}_s16p_s16K^{_s16})}/sigma_{(Lambda(1405)_s16p_s16K^{_s16})}=0.76_{-0.26}^{_s160.54}$. The knowledge of this ratio is an essential input for the analysis of the decay $Lambda(1405)rightarrowSigma^{pm}pi^{mp}$, where an unambiguous separation of the $Lambda$(1405) and $Sigma(1385)^{0}$ signals is not possible.
