Abstract
We study the photoproduction of the and hyperon resonances, the latter of which is not a well established state. We evaluate the -, -, and -channel diagrams in the Born approximation by employing the effective Lagrangians. A new ingredient is the inclusion of a nucleon resonance that is dynamically generated with predictions for its coupling to the and channels. To extend the applicability of the model to energies beyond the threshold region, we consider a Regge model for the -channel - and -exchanges. Our results are in good agreement with the CLAS data available on , while for we predict observables for its production. We also provide polarization observables for both hyperon productions, which can be useful in future experimental investigations. The present study provides new information on the nucleon resonance which can be an alternative source for generating the hyperon resonances and .
2 More- Received 4 February 2021
- Accepted 26 May 2021
DOI:https://doi.org/10.1103/PhysRevD.103.114017
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society