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Evdokimov S. V. Izucheev V. I. Kondratyuk E. S. Polishchuk B. V. Sadovsky S. A. Shangaraev A. A. Kharlov Yu. V. 《Physics of Atomic Nuclei》2021,84(9):1647-1652
Physics of Atomic Nuclei - According to modern theories, the parameters of neutral mesons such as their mass and width are closely connected with the medium in which the mesons are present.... 相似文献
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M. Yu. Bogolyubsky S. V. Evdokimov V. I. Izucheev D. I. Patalakha B. V. Polishchuk S. A. Sadovsky A. S. Soloviev M. V. Stolpovsky Yu. V. Kharlov N. A. Kuzmin V. P. Obudovsky Yu. P. Petukhov S. Ya. Sychkov 《Physics of Atomic Nuclei》2013,76(11):1324-1338
The π 0, η, K 0, ω, and f 2(1270) masses were measured at the HYPERON-Msetup in meson-nucleus interactions at a momentum of 7 GeV/c by using six nuclear targets: Be, C, Al, Cu, Sn, and Pb. The experiment in question proved to be insensitive to the expected effects of a modification to the omega-meson mass in nuclear matter. As for the f 2(1270) meson, its mass and width values averaged over all experimental data, $m_{f_2 }$ = 1275.8 ± 1.0(stat.) ± 0.4(syst.) MeV/c 2 and $\Gamma _{f_2 }$ = 190.3 ± 1.9(stat.) ± 1.8(syst.) MeV/c 2, agree well with the world-average values. At the same time, our experimental data do not rule out the possible effect of an in-medium modification to the f 2(1270)-meson mass for heavy nuclei at a level better than 0.4%. 相似文献
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