Eur. Phys. J. Plus (2023) 138: 1098
https://doi.org/10.1140/epjp/s13360-023-04671-1

Regular Article

Models predictions for the transverse momentum spectra of strange particles produced in $\text{pp}$ collisions at $\sqrt{s}=$ 7 and 13 TeV

¹ Department of Physics, University of Science and Technology Bannu, 28100, Bannu, Pakistan
² Departmentof Physics, COMSATS University Islamabad, Park Road, 44000, Islamabad, Pakistan

^b yasir_ali@comsats.edu.pk

Received: 1 September 2022
Accepted: 9 October 2023
Published online: 11 December 2023

Abstract

In this article, the comparative study of the ALICE data and models has been reported about the production of primary strange hadrons, i.e., $K_{\text{s}}^0$, $\mathrm{\Lambda }+\overline{\mathrm{\Lambda }}$ and multi-strange hyperons ${\mathrm{\Xi }}^{-}+{\overline{\mathrm{\Xi }}}^{+}$ and ${\mathrm{\Omega }}^{-}+{\overline{\mathrm{\Omega }}}^{+}$ at mid-rapidity$\left|y\right|<0.5$, in most central (0–5%) proton–proton (pp) collisions at $\sqrt{s}$= 7 and 13 TeV. EPOS-LHC, EPOS-1.99 and PYTHIA 8307 Monte Carlo simulation models have been used for comparison. In case of 7 TeV, $K_{\text{s}}^0$ mesons produced via using all three models predictions overestimated the ALICE data at low $p_{\text{T}}$. The same behavior is also observed in case of 13 TeV, but in this case models, outcomes are very near to that of ALICE. PYTHIA 8307 showed very good findings as compared to other models. In case of $\mathrm{\Lambda }+\overline{\mathrm{\Lambda }}$ hyperons at 7 TeV, PYTHIA 8307 works well as compared to EPOS models predictions at low ${\mathrm{p}}_{\mathrm{T}}$. At 13 TeV, all three models describe ALICE data very well up to$p_{\text{T}}\le 4.3\text{GeV}/c$. In case of ${\mathrm{\Xi }}^{-}+{\overline{\mathrm{\Xi }}}^{+}$, all models failed to follow the data. PYTHIA 8307 works well in case of ${\mathrm{\Omega }}^{-}+{\overline{\mathrm{\Omega }}}^{+}$, as compared to other two models. It is concluded that PYTHIA 8307 gives good overall predictions of ALICE data for $K_{\text{s}}^0$,$\mathrm{\Lambda }+\overline{\mathrm{\Lambda }}$ and ${\mathrm{\Omega }}^{-}+{\overline{\mathrm{\Omega }}}^{+}$ hyperons at both energies.