Abstract
A model for the reactions with is developed, aiming at establishing the low-lying and hyperon resonances through analyzing the forthcoming data from the J-PARC E31 experiment. The off-shell amplitudes generated from the dynamical coupled-channels (DCC) model, which was developed in Kamano et al. [Phys. Rev. C 90, 065204 (2014)], are used as input to the calculations of the elementary and subprocesses in the reactions. It is shown that the cross sections for the J-PARC E31 experiment with a rather high incoming- momentum, GeV, can be predicted reliably only when the input amplitudes are generated from a model, such as the DCC model used in this investigation, which describes the data of the reactions at energies far beyond the threshold. We find that the data of the threefold differential cross section for the reaction below the threshold can be used to test the predictions of the resonance poles associated with . We also find that the momentum dependence of the threefold differential cross sections for the reaction can be used to examine the existence of a low-lying resonance with a pole mass MeV, which was found from analyzing the reaction data within the employed DCC model.
8 More- Received 11 August 2016
- Revised 11 November 2016
DOI:https://doi.org/10.1103/PhysRevC.94.065205
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