Production of $\Lambda$ hyperons in inelastic p+p interactions at 158 GeV/$c$

Understand

Inclusive production of $\Lambda$-hyperons was measured with the large acceptance NA61/SHINE spectrometer at the CERN SPS in inelastic p+p interactions at beam momentum of 158~\GeVc.

• Spectra of transverse momentum and transverse mass as well as distributions of rapidity and x$_{_F}$ are presented.
• The mean multiplicity was estimated to be $0.120\,\pm0.006\;(stat.)\,\pm 0.010\;(sys.)$.
• The results are compared with previous measurements and predictions of the EPOS, UrQMD and FRITIOF models.