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Study of the Form Factor $$\gamma {\text{*}}\omega {{\pi }^{0}}$$ Using the SND Detector

Authors :
K. V. Pugachev
V. P. Druzhinin
A. A. Botov
A. A. Baikov
S. I. Serednyakov
E. V. Pakhtusova
Yu. V. Usov
L. V. Kardapoltsev
N. Yu. Muchnoi
M. N. Achasov
I. K. Surin
Alexey Kharlamov
V. B. Golubev
Alexander Bogdanchikov
Konstantin Beloborodov
K. A. Martin
V. V. Zhulanov
A. S. Kupich
A. V. Berdyugin
A. E. Obrazovskii
V. N. Zhabin
Aleksandr Korol
D. A. Shtol
D. P. Kovrizhin
Z. K. Silagadze
Y. S. Savchenko
T. V. Dimova
A. Yu. Barnyakov
N. A. Melnikova
Source :
Bulletin of the Lebedev Physics Institute. 48:87-91
Publication Year :
2021
Publisher :
Allerton Press, 2021.

Abstract

In this paper, we present the form factor $$\gamma {\text{*}}\omega {{\pi }^{0}}$$ measurement in the virtual photon mass range 1 GeV < $$\sqrt {{{q}^{2}}} $$ < 2 GeV in the $${{e}^{ + }}{{e}^{ - }} \to \omega {{\pi }^{0}} \to {{\pi }^{ + }}{{\pi }^{ - }}{{\pi }^{0}}{{\pi }^{0}}$$ process. Measurements are based on the data acquired by the SND detector at the VEPP-2000 $${{e}^{ + }}{{e}^{ - }}$$ collider in Novosibirsk. The obtained form factor is approximated in the vector meson dominance (VMD) model. The joint fitting of the form factor obtained in the SND and NA60 experiments is also performed.

Details

ISSN :
1934838X and 10683356
Volume :
48
Database :
OpenAIRE
Journal :
Bulletin of the Lebedev Physics Institute
Accession number :
edsair.doi...........d4f0011821b4be4b45ef7e7380f71fb4
Full Text :
https://doi.org/10.3103/s1068335621030088