Production of \(\Lambda \)-hyperons in inelastic p+p interactions at 158 \({\mathrm{GeV}}\!/\!c\)

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 \({\mathrm{GeV}}\!/\!c\). 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 \(0.120\,{\pm }\,0.006\;(stat.)\;{\pm }0.010\;(sys.)\). The results are compared with previous measurements and predictions of the Epos, Urqmd and Fritiof models.