RT Journal Article
T1 Likelihood of a zero in the proton elastic electric form factor
A1 Cheng, Peng
A1 Yao, Zhao-Quian
A1 Binosi, Daniele
A1 Roberts, Craig D.
AB Working with the 29 available data on the ratio of proton electric and magnetic form factors, 𝜇𝑝𝐺𝑝𝐸(𝑄2)/𝐺𝑝𝑀(𝑄2), and independent of any model or theory of strong interactions, we use the Schlessinger point method to objectively address the question of whether the ratio possesses a zero and, if so, its location. Our analysis predicts that, with 50% cofidence, the data are consistent with the existence of a zero in the  ratio on 𝑄2 ≤ 10.37 GeV2. The level of cofidence increases to 99.9% on 𝑄2 ≤ 13.06 GeV2. Significantly, the likelihood that existing data are consistent with the absence of a zero in the ratio on 𝑄2 ≤ 14.49 eV2 is 1∕1-million.
PB Elsevier
SN 0370-2693
SN 1873-2445 (electrónico)
YR 2025
FD 2025
LK https://hdl.handle.net/10272/28009
UL https://hdl.handle.net/10272/28009
LA eng
NO Cheng, P., Yao, Z.-Q., Binosi, D., & Roberts, C. D. (2025). Likelihood of a zero in the proton elastic electric form factor. Physics Letters B, 862, 139323. https://doi.org/10.1016/j.physletb.2025.139323
NO Work supported by: National Natural Science Foundation of China (grant no. 12135007), Natural Science Foundation of Anhui Province (grant no. 2408085QA028), Spanish Ministry of Science, Innovation and Universities (MICIU grant no. PID2022-140440NB-C22), Project AST22 _00001_X, funded by NextGenerationEU and "Plan de Recuperación, Transformación y Resiliencia y Resiliencia'' (PRTR) from MICIU and Junta de Andalucía; and completed in part at Institut Pascal, Université Paris-Saclay, with the support of the program "Investissements d’avenir'' ANR-11-IDEX-0003-01.
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026