/ hep-ex arXiv:1510.03720

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

Pages: 19

Abstract: 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.

Note: 19 pages, 20 figures, 6 tables

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