BydŽovský, P., Cieplý, A., Petrellis, D. et al. (2 more authors) (2021) Model selection for K+ ς- Photoproduction within an isobar model. Physical Review C. 065202. ISSN 2469-9993
Abstract
We utilize an isobar model to investigate the K+ς- photoproduction off a neutron in the resonance region. Except for the Born terms, we include high-spin (spin-3/2 and spin-5/2) nucleon resonances in the consistent formalism together with a few Δ and kaon resonances to achieve an acceptable agreement with data. Interestingly, we reveal that no hyperon resonances are needed to achieve a reasonable description of data. On the other hand the N(1720)3/2+ resonance was found to be very important for correct description of data. The free parameters of the model were fitted to experimental data from the LEPS and CLAS Collaborations on either differential cross sections or photon beam asymmetry. The novel feature of the fitting procedure is the use of a regularization method, the least absolute shrinkage selection operator, and information criteria in order to choose the best fit.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Funding Information: The authors would like to thank H. Haberzettl for drawing their attention to the LASSO method. This work was supported by the Czech Science Foundation GACR Grants No. 19-19640S (P.B., A.C., and D.S.) and No. 19-14048S (D.P.). © 2021 American Physical Society. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/V001035/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P004385/2 |
Depositing User: | Pure (York) |
Date Deposited: | 18 Feb 2022 14:20 |
Last Modified: | 16 Oct 2024 18:15 |
Published Version: | https://doi.org/10.1103/PhysRevC.104.065202 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevC.104.065202 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:183800 |
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Filename: PhysRevC.104.065202.pdf
Description: Model selection for K+− photoproduction within an isobar model