Isospin decomposition of transitions within a dynamical coupled-channels model
Abstract
Here, by extending the dynamical coupled-channels analysis performed in our previous work to include the available data of photoproduction of pi mesons off neutrons, the transition amplitudes for the photoexcitation of the neutron-to-nucleon resonances, γn → N*, at the resonance pole positions are determined. The combined fits to the data for both the proton- and neutron-target reactions also revise our results for the resonance pole positions and the γp → N* transition amplitudes. Our results allow an isospin decomposition of the γN → N* transition amplitudes for the isospin I = 1/2 N* resonances, which is necessary for testing hadron structure models and gives crucial inputs for constructing models of neutrino-induced reactions in the nucleon resonance region.
- Authors:
-
- High Energy Accelerator Research Org. (KEK), Ibaraki (Japan); IPNS, KEK, Ibaraki (Japan)
- Osaka Univ., Osaka (Japan)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science - National Energy Research Scientific Computing Center (NERSC); Japan Society for the Promotion of Science (JSPS); Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1337150
- Alternate Identifier(s):
- OSTI ID: 1260857
- Grant/Contract Number:
- AC02-06CH11357; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 1; Journal ID: ISSN 2469-9985
- Publisher:
- APS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Kamano, Hiroyuki, Nakamura, S. X., Lee, T. -S. H., and Sato, T. Isospin decomposition of γN→N* transitions within a dynamical coupled-channels model. United States: N. p., 2016.
Web. doi:10.1103/PhysRevC.94.015201.
Kamano, Hiroyuki, Nakamura, S. X., Lee, T. -S. H., & Sato, T. Isospin decomposition of γN→N* transitions within a dynamical coupled-channels model. United States. https://doi.org/10.1103/PhysRevC.94.015201
Kamano, Hiroyuki, Nakamura, S. X., Lee, T. -S. H., and Sato, T. Thu .
"Isospin decomposition of γN→N* transitions within a dynamical coupled-channels model". United States. https://doi.org/10.1103/PhysRevC.94.015201. https://www.osti.gov/servlets/purl/1337150.
@article{osti_1337150,
title = {Isospin decomposition of γN→N* transitions within a dynamical coupled-channels model},
author = {Kamano, Hiroyuki and Nakamura, S. X. and Lee, T. -S. H. and Sato, T.},
abstractNote = {Here, by extending the dynamical coupled-channels analysis performed in our previous work to include the available data of photoproduction of pi mesons off neutrons, the transition amplitudes for the photoexcitation of the neutron-to-nucleon resonances, γn → N*, at the resonance pole positions are determined. The combined fits to the data for both the proton- and neutron-target reactions also revise our results for the resonance pole positions and the γp → N* transition amplitudes. Our results allow an isospin decomposition of the γN → N* transition amplitudes for the isospin I = 1/2 N* resonances, which is necessary for testing hadron structure models and gives crucial inputs for constructing models of neutrino-induced reactions in the nucleon resonance region.},
doi = {10.1103/PhysRevC.94.015201},
journal = {Physical Review C},
number = 1,
volume = 94,
place = {United States},
year = {Thu Jul 07 00:00:00 EDT 2016},
month = {Thu Jul 07 00:00:00 EDT 2016}
}
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