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- W4313303614 abstract "The near-threshold pion-induced $phi$ production off nuclei has been studied in the kinematical conditions of the HADES experiment using a collision model based on the nuclear spectral function. Starting from the elementary reaction ${pi^-}p to {phi}n$, absolute differential and integral cross sections for the production of $phi$ mesons off a light carbon and a heavy tungsten target have been calculated and compared to the recently reported experimental cross sections. The absolute cross section values are shown to be sensitive to the effective nuclear scalar $phi$ and neutron potentials while the transparency ratio is governed by the ${phi}N$ absorption cross section. The experimental data are found to be consistent with an attractive ${phi}$-nucleus potential of $approx$ -(50--100) MeV at normal nuclear matter density $rho_0$ and an effective ${phi}N$ absorption cross section of $approx$ 12--25 mb. The extracted $phi$-nucleus potential is deeper than previous theoretical and experimental findings but consistent with the potential depth of $approx$ -(70$pm30)$ MeV estimated within the ($t{rho}$) approximation from the spin-averaged $phi$-$p$ scattering length reported in a recent ALICE experiment." @default.
- W4313303614 created "2023-01-06" @default.
- W4313303614 creator A5069991501 @default.
- W4313303614 date "2022-12-28" @default.
- W4313303614 modified "2023-09-23" @default.
- W4313303614 title "Testing the $phi$-nuclear potential in pion-induced $phi$ meson production on nuclei near threshold" @default.
- W4313303614 doi "https://doi.org/10.48550/arxiv.2212.13778" @default.
- W4313303614 hasPublicationYear "2022" @default.
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