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Electromagnetic \({\varvec{N}}^{\varvec{*}}\) Transition Form Factors in the ANL-Osaka Dynamical Coupled-Channels Approach

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Abstract

We give an overview of our recent efforts to extract electromagnetic transition form factors for \(N^*\) and \({\varDelta }^*\) baryon resonances through a global analysis of the single-pion electroproductions off the proton within the ANL-Osaka dynamical coupled-channels approach. Preliminary results for the extracted form factors associated with \({\varDelta }(1232)3/2^+\) and the Roper resonance are presented, with emphasis on the complex-valued nature of the transition form factors defined by poles.

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Acknowledgements

The author would like to thank T.-S. H. Lee, S. X. Nakamura, and T. Sato for their collaborations.

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Authors and Affiliations

  1. KEK Theory Center, Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan

    Hiroyuki Kamano

  2. J-PARC Branch, KEK Theory Center, IPNS, KEK, Tokai, Ibaraki, 319-1106, Japan

    Hiroyuki Kamano

Authors
  1. Hiroyuki Kamano
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Correspondence to Hiroyuki Kamano.

Additional information

This article belongs to the Topical Collection “NSTAR 2017 – The International Workshop on the Physics of Excited Nucleons”.

This contribution was partly supported by JSPS KAKENHI Grant No. JP25105010.

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Kamano, H. Electromagnetic \({\varvec{N}}^{\varvec{*}}\) Transition Form Factors in the ANL-Osaka Dynamical Coupled-Channels Approach. Few-Body Syst 59, 24 (2018). https://doi.org/10.1007/s00601-018-1345-3

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