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Analysis of production of Σ(1385)±, Ξ(1530)0 and their anti-particles in inelastic pp collisions at \(\sqrt{s}\) = 7 TeV

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Abstract

The experimental transverse momentum (pT) spectra of the strange hadrons (\(\Sigma^{ + }\), \(\overline{\Sigma }^{ + }\),\(\Sigma^{ - }\), \(\overline{\Sigma }^{ - }\) and \(\Xi^{0} + \overline{\Xi }^{0}\)) in inelastic pp collisions at \(\sqrt{s}\) = 7 TeV, measured at midrapidity range \(\left| y \right| < 0.5\) by the ALICE collaboration, are analyzed. The EPOS-LHC model calculations reproduce quite well the ALICE experimental transverse momentum distributions of all studied strange hadrons in inelastic pp collisions at \(\sqrt s\) = 7 TeV in pT region up to 5 GeV/c. The EPOS-1.99 model calculations underestimate systematically the ALICE experimental pT spectra of all studied strange hadrons, except that of \(\Xi^{0} + \overline{\Xi }^{0}\), in these pp collisions. Quite good description by the EPOS-LHC model of the experimental pT spectra of all studied strange hadrons in pT region up to 5 GeV/c could be attributed to the consistent treatment of the cross sections and the particle production in the framework of the EPOS-LHC model. The average pT of the particles from the ALICE experiment as well as EPOS-LHC + EPOS-1.99 calculations increase linearly with increasing particle mass in inelastic pp collisions at \(\sqrt s\) = 7 TeV. This is likely due to the significant collective radial flow of the particles developed in inelastic pp collisions at \(\sqrt s\) = 7 TeV. Both EPOS-LHC and EPOS-1.99 models describe quite well the mass dependencies of the experimental mean pT of the various particles in inelastic pp collisions at \(\sqrt s\) = 7 TeV. The experimental and EPOS-LHC + EPOS-1.99 model data on \(<{p}_{T}>\) versus mass dependencies of the various particles, produced in inelastic pp collisions at \(\sqrt s\) = 7 TeV, are fitted very well by a linear function with the single slope parameter. These results suggest that the collective radial flow calculations are quite adequate and very satisfactory in both EPOS-LHC and EPOS-1.99 models.

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Data Availability Statement

The experimental data set used for comparison with the simulated data during the current study are available at [https://www.hepdata.net/record/ins1464834]. This manuscript has associated data in a data repository. [Authors’ comment: The data has been taken from “https://doi.org/10.1140/epjc/s10052-014-3191-x”.]

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Acknowledgements

The research work of Kh.K.O has been supported by the Agency of Innovative Development of the Ministry of Higher Education, Science and Innovation of Uzbekistan within the fundamental research project No. F3-20200929146 on analysis of open data on heavy-ion collisions at the LHC.

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Authors and Affiliations

  1. Department of Physics, University of Science and Technology Bannu, Bannu, 28100, Pakistan

    Naseebullah & Imran Khan

  2. Physical-Technical Institute, Uzbekistan Academy of Sciences, 100084, Tashkent, Uzbekistan

    Khusniddin K. Olimov

  3. Almalyk Branch, National University of Science and Technology MISIS (NUST MISIS), Almalyk, Uzbekistan

    Khusniddin K. Olimov

  4. Department of Physics, COMSATS University Islamabad, Park Road, Islamabad, 44000, Pakistan

    Yasir Ali

  5. Department of Physics, Abdul Wali Khan University, Mardan, Pakistan

    Muhammad Ajaz

  6. Institute of Physics, Gomal University, Dera Ismail Khan, Pakistan

    Aftab Ahmad

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Correspondence to Imran Khan.

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Naseebullah, Olimov, K.K., Khan, I. et al. Analysis of production of Σ(1385)±, Ξ(1530)0 and their anti-particles in inelastic pp collisions at \(\sqrt{s}\) = 7 TeV. Eur. Phys. J. Plus 138, 556 (2023). https://doi.org/10.1140/epjp/s13360-023-04190-z

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