Abstract
Abstract
We study the inclusive production of strange vector
mesons in
reactions at near-threshold laboratory incident pion momenta of 1.4–2.0 GeV/c via a nuclear spectral function approach. The approach accounts for incoherent primary
meson–proton
production processes as well as the influence of the scalar
–nucleus potential (or the
in-medium mass shift) on these processes. We calculate the absolute differential and total cross sections for the production of
mesons from carbon and tungsten nuclei at laboratory angles of 0
–45
and at the aforementioned momenta in five scenarios for the aforenoted shift. We show that the
momentum distributions and their excitation functions (absolute and relative) possess a high sensitivity to changes in the in-medium
mass shift in the low-momentum region of 0.1–0.6 GeV/c. Therefore, the measurement of such observables in a dedicated experiment at the GSI pion beam facility in the near-threshold momentum domain will allow us to get valuable information on the
in-medium properties.
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
5 articles.
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