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Strongly Intensive Observables as a Tool for Studying Clusters of Quark–Gluon Strings in Relativistic Hadron Interactions

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Abstract

Within the model with quark–gluon strings (color flux tubes) as sources, the properties of the strongly intensive variable \(\Sigma \), which characterizes correlations between the number of particles, which are detected in pp interactions at LHC energies in two observation windows separated in rapidity, are investigated. It is found that the behavior of this variable observed in the ALICE experiment can be explained only in the presence of different type sources, the role of which in the model is played by single strings and the clusters formed by the fusion of several strings. It is shown that a comparison of the model results with the preliminary experimental ALICE data obtained in pp collisions at energies of 0.9 and 7 TeV makes it possible to extract data on the parameters characterizing the clusters with different numbers of fused strings. The dependence of the observable \(\Sigma \) on a degree of the pp-collision centrality is also studied. In general, it is shown that in pp collisions at LHC energies, the increase in this variable with the initial energy and centrality of collisions in pp interactions is explained by the increasing contribution from the formation of string clusters consisting of a growing number of fused strings.

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REFERENCES

  1. A. B. Kaidalov, “The quark-gluon structure of the pomeron and the rise of inclusive spectra at high energies,” Phys. Lett. B 116, 459–463 (1982). https://doi.org/10.1016/0370-2693(82)90168-X

    Article  ADS  Google Scholar 

  2. A. B. Kaidalov and K. A. Ter-Martirosian, “Pomeron as quark-gluon strings and multiple hadron production at SPS-Collider energies,” Phys. Lett. B 117, 247–251 (1982).

    Article  ADS  Google Scholar 

  3. V. A. Abramovsky, E. V. Gedalin, E. G. Gurvich, and O. V. Kancheli, “Long range azimuthal correlations in multiple production processes at high energies,” JETP Lett. 47, 337–339 (1988).

    ADS  Google Scholar 

  4. A. Capella, U. Sukhatme, C.-I. Tan, and J. Tran Thanh Van, “Long range azimuthal correlations in multiple production processes at high energies,” Phys. Rep. 236, 225–329 (1994).

    Article  ADS  Google Scholar 

  5. T. S. Biro, H. B. Nielsen, and J. Knoll, “Colour rope model for extreme relativistic heavy ion collisions,” Nucl. Phys. B 245, 449–468 (1984).

    Article  ADS  Google Scholar 

  6. A. Bialas and W. Czyz, “Conversion of color field into \(q\bar {q}\) matter in the central region of high-energy heavy ion collisions,” Nucl. Phys. B 267, 242–252 (1986).

    Article  ADS  Google Scholar 

  7. M. A. Braun and C. Pajares, “Particle production in nuclear collisions and string interactions,” Phys. Lett. B 287, 154–158 (1992).

    Article  ADS  Google Scholar 

  8. M. A. Braun and C. Pajares, “A probabilistic model of interacting strings,” Nucl. Phys. B 390, 542–558 (1993).

    Article  ADS  Google Scholar 

  9. N. S. Amelin, N. Armesto, M. A. Braun, E. G. Ferreiro, and C. Pajares, “Long and short range correlations and the search of the quark gluon plasma,” Phys. Rev. Lett. 73, 2813 (1994).

    Article  ADS  Google Scholar 

  10. A. Dumitru, F. Gelis, L. McLerran, and R. Venugopalan, “Glasma flux tubes and the near side ridge phenomenon at RHIC,” Nucl. Phys. A 810, 91–108 (2008).

    Article  ADS  Google Scholar 

  11. A. Capella and A. Krzywicki. “Unitarity corrections to short range order: Long range rapidity correlations,” Phys. Rev. D 18, 4120 (1978).

    Article  ADS  Google Scholar 

  12. B. Alessandro et al. (ALICE Collab.), “ALICE : Physics performance report, Volume II,” Phys J. G 32, 1295–2040 (2006).

    Article  Google Scholar 

  13. V. V. Vechernin and R. S. Kolevatov, “Long-range correlations between transverse momenta of charged particles produced in relativistic nucleus-nucleus collisions,” Phys. Atom. Nucl. 70, 1809–1818 (2007).

    Article  ADS  Google Scholar 

  14. N. Armesto, D. A. Derkach, and G. A. Feofilov, “p(t)-multiplicity correlations in a multi-Pomeron-exchange model with string collective effects,” Phys. Atom. Nucl. 71, 2087–2095 (2008).

    Article  ADS  Google Scholar 

  15. V. V. Vechernin, “Correlation between transverse momenta in the string fusion model,” Theor. Math. Phys. 184, 1271–1280 (2015).

    Article  MathSciNet  MATH  Google Scholar 

  16. V. Vechernin, “Long-range rapidity correlations between mean transverse momenta in the model with string fusion,” EPJ Web Conf. 125, 04022 (2016).

  17. V. Vechernin and V. Kovalenko, “Forward-backward correlations between intensive observables,” J. Phys.: Conf. Ser. 798, 012053 (2017).

    Google Scholar 

  18. V. V. Vechernin, “Asymptotic behavior of the correlation coefficients of transverse momenta in the model with string fusion,” Theor. Math. Phys. 190, 251–267 (2017).

    Article  MathSciNet  MATH  Google Scholar 

  19. G. Feofilov, V. Kovalenko, and A. Puchkov, “p(t)-multiplicity correlations in a multi-Pomeron-exchange model with string collective effects,” EPJ Web Conf. 171, 18003 (2018).

  20. M. I. Gorenstein and M. Gazdzicki, “Strongly intensive quantities,” Phys. Rev. C 84, 014904 (2011).

    Article  ADS  Google Scholar 

  21. E. V. Andronov, “Influence of the quark-gluon string fusion mechanism on long-range rapidity correlations and fluctuations,” Theor. Math. Phys. 185, 1383–1390 (2015).

    Article  MathSciNet  MATH  Google Scholar 

  22. V. Vechernin, “Short- and long-range rapidity correlations in the model with a lattice in transverse plane,” Eur. Phys. J.: Web Conf. 191, 04011 (2018)

    Google Scholar 

  23. S. N. Belokurova and V. V. Vechernin, “Strongly intensive variables and the long-range correlations in the model with a lattice in transverse plane,” Theor. Math. Phys. 200, 1094–1109 (2019).

    Article  MathSciNet  MATH  Google Scholar 

  24. S. Belokurova, “Study of strongly intense quantities and robust variances in multi-particle production at LHC energies,” Phys. Part. Nucl. 53, 154–158 (2022).

    Article  Google Scholar 

  25. V. Vechernin and I. Lakomov, “The dependence of the number of pomerons on the impact parameter and the long-range rapidity correlations in pp collisions,” in Proceedings of 21st International Baldin Seminar on High Energy Physics Problems, JINR, Russia, 2012, Proc. Sci. (2013), p. 072.

  26. V. Vechernin and R. S. Kolevatov, “Cellular approach to long-range p t and multiplicity correlations in the string fusion model,” Vestn. SPbU: Ser. 4 No. 4, 11–27 (2004). arXiv:0305136 hep-ph

  27. M. A. Braun, R. S. Kolevatov, C. Pajares, and V. V. Vechernin, “Correlations between multiplicities and average transverse momentum in the percolating color strings approach,” Eur. Phys. J. C 32, 535–546 (2004).

    Article  ADS  Google Scholar 

  28. V. V. Vechernin and S. N. Belokurova, “The strongly intensive observable in pp collisions at LHC energies in the string fusion model,” J. Phys.: Conf. Ser. 1690, 012088 (2020).

    Google Scholar 

  29. A. Erokhin (ALICE Collab.). “Forward-backward multiplicity correlations with strongly intensive observables in pp collisions,” in Proceedings of the 6th International Conference on the Initial Stages of High-Energy Nuclear Collisions (IS2021), 2021. https://indico.cern.ch/ event/854124/contributions/4134683/.

  30. E. Andronov and V. Vechernin, “Strongly intensive observable between multiplicities in two acceptance windows in a string model,” Eur. Phys. J. A 55, 14 (2019).

    Article  ADS  Google Scholar 

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Funding

The work was supported by the Russian Foundation for Basic Research, grant 18-02-40075, and the St. Petersburg State University, grant ID: 94031112.

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Authors and Affiliations

  1. St. Petersburg State University, 199034, St. Petersburg, Russia

    S. N. Belokurova & V. V. Vechernin

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  1. S. N. Belokurova
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  2. V. V. Vechernin
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Correspondence to S. N. Belokurova or V. V. Vechernin.

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Translated by M. Samokhina

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Belokurova, S.N., Vechernin, V.V. Strongly Intensive Observables as a Tool for Studying Clusters of Quark–Gluon Strings in Relativistic Hadron Interactions. Phys. Part. Nuclei 54, 536–541 (2023). https://doi.org/10.1134/S106377962303005X

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