Measurement of Parameters of Neutral Mesons Produced in Meson-Nucleus Interactions in Hyperon-M Experiment
https://doi.org/10.56304/S2079562920060202
Abstract
According to modern theories parameters of neutral mesons such as their mass and width are tightly related to medium in which mesons are present. Experimental data on the study of mesons in a nuclear medium are in demand for the development of theoretical models describing processes in the field of nonperturbative quantum chromodynamics (QCD). In the Hyperon-M experiment at the U70 accelerator, measurements are made of the masses and widths of neutral mesons produced in meson-nuclear interactions on various nuclei. This paper describes a technique for precision measurement of the parameters of neutral mesons, presents the results on the measurement of the mass and width of the ω(782)-meson and preliminary results on the measurement of the mass and width of the f (1270)-meson. The measurements indicate that there is no dependence of the quantities under study on the nuclear environment.
About the Authors
S. V. Evdokimov
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
V. I. Izucheev
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
Е. S. Kondratyuk
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
B. V. Polishchuk
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
S. A. Sadovsky
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
А. А. Shangaraev
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
Yu. V. Kharlov
Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
Protvino, Moscow oblast,142281
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Review
For citations:
Evdokimov S.V., Izucheev V.I., Kondratyuk Е.S., Polishchuk B.V., Sadovsky S.A., Shangaraev А.А., Kharlov Yu.V. Measurement of Parameters of Neutral Mesons Produced in Meson-Nucleus Interactions in Hyperon-M Experiment. Nuclear Physics and Engineering. 2021;12(5):282-288. (In Russ.) https://doi.org/10.56304/S2079562920060202
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