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Title: Isospin decomposition of γ N N * 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:
 [1];  [2];  [3];  [2]
  1. High Energy Accelerator Research Org. (KEK), Ibaraki (Japan); IPNS, KEK, Ibaraki (Japan)
  2. Osaka Univ., Osaka (Japan)
  3. 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) (SC-26)
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. doi: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. doi: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 = {2016},
month = {7}
}

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Free Publicly Available Full Text
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Cited by: 11 works
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    Works referencing / citing this record:

    The impact of $K^{+}\Lambda$ K + Λ photoproduction on the resonance spectrum
    journal, June 2018


    The impact of $K^{+}\Lambda$ K + Λ photoproduction on the resonance spectrum
    journal, June 2018