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Volume 281 - The 26th International Nuclear Physics Conference (INPC2016) - QCD: Hadron Structure and Spectroscopy – Thursday 15
Polarization of Λ Hyperons In Proton-Proton Reactions At 3.5 GeV Measured With Hades
R. Lalik* on behalf of the HADES collaboration
*corresponding author
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Pre-published on: 2017 May 04
Published on: 2017 May 09
First results of the $\Lambda$ polarization measurement by HADES in the proton-proton reactions on $\sqrt{s} = 3.18$ GeV are reported. According to the theory and measurement of the $\Lambda$ polarization at the same beam kinetic energy in p+Nb reaction, the polarization is expected to have small and negative value. Current results does not allow to draw conclusions on the results from p+p reaction. In the analysis we experience large uncertainty in the longitudinal direction and positive but small polarization in the spin-aligned direction.
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