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  1. Pubblicazioni

New fit of timelike proton electromagnetic formfactors from e(+)e(-) colliders

Articolo
Data di Pubblicazione:
2021
Abstract:
The data on the proton form factors in the timelike region from the BaBar, BESIII, and CMD-3 Collaborations are examined to have coherent pieces of information on the proton structure. Oscillations in the annihilation cross section, previously observed, are determined with better precision. The moduli of the individual form factors, determined for the first time, their ratios, and the angular asymmetry of the annihilation reaction e(+)e(-) -> (p) over barp are discussed. Fits of the available data on the cross section, the effective form factor, and the form factor ratio, allow to propose a description of the electric and magnetic timelike form factors from the threshold up to the highest momenta.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Timelike, Form factor, Proton
Elenco autori:
Tomasi-Gustafsson, E; Bianconi, A; Pacetti, S
Autori di Ateneo:
BIANCONI Andrea
Link alla scheda completa:
https://iris.unibs.it/handle/11379/572286
Link al Full Text:
https://iris.unibs.it/retrieve/handle/11379/572286/182305/z_tomasi_2020a.pdf
Pubblicato in:
PHYSICAL REVIEW C
Journal
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