6 citations · 6 across the 5 of their papers we have counts for
5 papers
Remarks on the proton charge radius
Hirohisa Ishikawa, Keiji Watanabe
Proton charge radius is calculated from the electromagnetic form factor of proton parameterized by the dispersion relation. The calculated charge radius is a little larger than tha…
Dispersion Relation for the Nucleon Electromagnetic Form Factors
Susumu Furuichi, Hirohisa Ishikawa, Keiji Watanbe
Elastic electromagnetic form factors of nucleons are investigated both for the time-like and the space-like momentums by using the unsubtracted dispersion relation with QCD constra…
Electromagnetic Form Factors of Nucleons with QCD Constraints Sytematic Study of the Space and Time-like Regions
Susumu Furuichi, Hirohisa Ishikawa, Keiji Watanabe
Elastic electromagnetic form factors of nucleons are investigated both for the time-like and the space-like momentums under the condition that the QCD constraints are satisfied asy…
Effective Coupling Constant in Renormalization Group for the Quantum Electrodynamics
Hirohisa Ishikawa, Keiji Watanabe
Effective coupling constant in quantum electrodynamics is investigated. A pole appears in the effective coupling constant for the space-like momentum if it is calculated by perturb…
Analysis of pion electromagnetic form factor by the dispersion relation with QCD constraint
Keiji Watanabe, Hirohisa Ishikawa, Masami Nakagawa
The pion electromagnetic form factor is investigated by using the dispersion relation with the superconvergence condition, which was proposed to synthesize the vector meson dominan…