Near-threshold K*(892)+ meson production in the interaction of π− mesons with nuclei

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.

• Publication year

  2020

• Venue

  Chinese Physics C, High Energy Physics & Nuclear Physics

• Publication date

  2020-07-16

• Fields of study

  Physics

• Identifiers
  DOI 10.1088/1674-1137/abae55arXiv 2007.10192
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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