Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 27: Poster

HK 27.22: Poster

Dienstag, 28. März 2017, 16:45–18:45, F Foyer

Lambda - Proton Correlation in Pion-Induced Reactions at 1.7 GeV/c — •Steffen Maurus^1,2 and Laura Fabbietti^1,2 for the HADES collaboration — ¹Physik Department, TUM, Garching, Germany — ²Excellence Cluster "Universe", Garching, Germany

World data for elastic Λ - proton scattering over a wide range of Λ momenta are quite scarce. In order to provide a better theoretical description, new constraints to improve the parametrization of cross-section is needed.
In this context the inclusive Λ momenta spectrum aside with the angular correlation between proton and Λ is studied in pion-nucleon reactions (π⁻ + A, A = C, W) at p_π⁻ = 1.7 GeV/c with the HADES detector at GSI.
After the Λ has been produced, it interacts with the surrounding nucleons and eventually scattering occurs. The latter can be characterized by a large relative momenta between the Λ and the protons, allowing us to investigate the short distance interactions. We will report on the analysis of the collected statistics and comparison to transport model to test the sensitivity of the data to different assumption on the short range lambda-nucleon interaction.
∗ supported by BMBF 05P15WOFCA