Zero of the proton electric form factor in the finite value of the spacelike momentum transfer squared
Abstract
The behavior of the polarization data on μp(GpE(t)/GpM(t)) ratio, at the present day available up to t=−8.5 GeV2, obtained in the Jefferson Lab experiments carried out by the Akhiezer-Rekalo polarization method, demonstrates a decreasing tendency, which indicates the possible existence of a zero of the proton electric form factor GpE(t) in the finite spacelike momentum transfer squared value. However, recently appeared two papers, investigating these data, one of them also included all other existing data on the nucleon electromagnetic structure in the spacelike and timelike regions, where the existence of such zero was questioned. Nevertheless, the reinvestigations we provide in this paper by means of the Unitary and Analytic model of the nucleon electromagnetic form factors give arguments for the possible existence of such a zero.
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BibTeX
@misc{bartos2026zero,
title = {{Zero of the proton electric form factor in the finite value of the spacelike momentum transfer squared}},
author = {Erik Bartoš and Stanislav Dubnička and Noel Vincze and Andrej Liptaj and Anna Zuzana Dubničková},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2607.18307},
eprint = {2607.18307},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.18307},
}
RIS
TY - UNPB
TI - Zero of the proton electric form factor in the finite value of the spacelike momentum transfer squared
AU - Erik Bartoš
AU - Stanislav Dubnička
AU - Noel Vincze
AU - Andrej Liptaj
AU - Anna Zuzana Dubničková
PY - 2026
DA - 2026/10/15
PB - arXiv
DO - 10.48550/arxiv.2607.18307
UR - https://arxiv.org/abs/2607.18307
AB - The behavior of the polarization data on μ_p(G^p_E(t)/G^p_M(t)) ratio, at the present day available up to t=−8.5 GeV^2, obtained in the Jefferson Lab experiments carried out by the Akhiezer-Rekalo polarization method, demonstrates a decreasing tendency, which indicates the possible existence of a zero of the proton electric form factor G^p_E(t) in the finite spacelike momentum transfer squared value. However, recently appeared two papers, investigating these data, one of them also included all other existing data on the nucleon electromagnetic structure in the spacelike and timelike regions, where the existence of such zero was questioned. Nevertheless, the reinvestigations we provide in this paper by means of the Unitary and Analytic model of the nucleon electromagnetic form factors give arguments for the possible existence of such a zero.
ER -