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Factorial Moments in the NICA/MPD Experiment

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Abstract

The study of the scaled factorial moments of the multiplicity distribution in rapidity intervals as function of the rapidity interval size is presented for Au + Au interactions at √sNN = 7.7 and 11.5 GeV using the HYDJET++, UrQMD and vHLLE+UrQMD generators. This measurement is sensitive to the size and power of the multiparticle correlations. The sensitivity of the measurement to the initial conditions and properties of nuclear matter equation of state is discussed.

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REFERENCES

  1. Y. Aoki, G. Endrodi, Z. Fodor, S. D. Katz, and K. K. Szabo, “The order of the quantum chromodynamics transition predicted by the standard model of particle physics,” Nature 443, 675 (2006).

    Article  ADS  Google Scholar 

  2. S. Borsanyi, G. Endrodi, Z. Fodor, A. Jakovac, S. D. Katz, S. Krieg, C. Ratti, and K. K. Szabo, “The QCD equation of state with dynamical quarks,” JHEP, No. 11, 077 (2010).

  3. M. A. Stephanov, “QCD phase diagram and the critical point,” Prog. Theor. Phys. Suppl. 153, 139 (2004).

    Article  ADS  Google Scholar 

  4. M. Hippert and E. S. Fraga, “Multiplicity fluctuations near the QCD critical point,” Phys. Rev. D: Part. Fields 96, 034011 (2017).

    Article  ADS  MathSciNet  Google Scholar 

  5. X. Luo, “Exploring the QCD phase structure with beam energy scan in heavy-ion collisions,” Nucl. Phys. A 956, 75 (2016).

    Article  ADS  Google Scholar 

  6. J. Xu (STAR Collab.), “Energy dependence of moments of net-proton, net-kaon, and net-charge multiplicity distributions at STAR,” J. Phys.: Conf. Ser. 736, 012002 (2016).

    Google Scholar 

  7. M. A. Stephanov, K. Rajagopal, and E. V. Shuryak, “Event-by-event fluctuations in heavy ion collisions and the QCD critical point,” Phys. Rev. D: Part. Fields 60, 114 028 (1999).

    Article  Google Scholar 

  8. M. Hippert, E. S. Fraga, and E. M. Santos, “Critical versus spurious fluctuations in the search for the QCD critical point,” Phys. Rev. D: Part. Fields 93, 014029 (2016).

    Article  ADS  Google Scholar 

  9. M. Gorenstein, “New theoretical results on event-by-event fluctuations,” Proc. Sci. CPOD 2014, 017 (2015).

  10. Kh. U. Abraamyan et al. (MPD Collab.), “The MPD detector at the NICA heavy-ion collider at JINR,” Nucl. Instrum. Methods Phys. Res., Sect. A 628, 99 (2011).

    Google Scholar 

  11. S. A. Bass, M. Belkacem, M. Bleicher, M. Brandstetter, L. Bravina, C. Ernst, L. Gerland, M. Hofmann, et al., “Miscroscopic models of ultrarelativistic heavy ion collisions,” Prog. Part. Nucl. Phys. 41, 255 (1998).

    Article  ADS  Google Scholar 

  12. Iu. Karpenko, P. Huovinen, H. Petersen, and M. Bleicher, “Estimation of the shear viscosity at finite net-baryon density from A+A collision data at √s = 7.7–200 GeV,” Phys. Rev. C 91, 064901 (2015).

    Article  ADS  Google Scholar 

  13. I. P. Lokhtin, L. V. Malinina, S. V. Petrushanko, A. M. Snigirev, I. Arsene, and K. Tywonyuk, “Heavy ion event generator HYDJET++,” Comput. Phys. Commun. 180, 779 (2009).

    Article  ADS  Google Scholar 

  14. P. F. Kolb, J. Sollfrank, and U. W. Heinz, “Anisotropic transverse flow and the quark hadron phase transition,” Phys. Rev. C 62, 054 909 (2000).

    Article  Google Scholar 

  15. J. Steinheimer et al., “An effective chiral hadron-quark equation of state,” J. Geom. Phys. 38, 035001 (2011).

    Article  Google Scholar 

  16. A. Bialas and R. Peschanski, “Moments of rapidity distributions as a measure of short-range fluctuations in high-energy collisions,” Nucl. Phys. B 273, 703 (1986).

    Article  ADS  Google Scholar 

  17. N. G. Antoniou et al. (NA49 Collab.), “Improved intermittency analysis of proton density fluctuations in NA49 ion collisions at 158 AGeV,” EPJ Web Conf. 71, 00035 (2014).

  18. M. M. Khan et al., “Improved intermittency analysis of charged particle density fluctuations in Pb+Pb collisions at√sNN = 2.76 TeV,” DAE-BRNS. Symp. Nucl. Phys. 61, 840–841 (2016).

    Google Scholar 

  19. N. Davis (NA61/SHINE Collab.), “Searching for the critical point of strongly interacting matter in nucleus-nucleus collisions at CERN SPS,” arXiv:2002.06636 (2020).

  20. M. Yu. Bogolyubsky et al., “Clan model and factorial moments of the multiplicity distribution in intervals,” Phys. Atom. Nucl. 57, 2132 (1994).

    ADS  Google Scholar 

  21. M. Yu. Bogolyubsky et al., “Characteristics of the groups of charged particles in p, pp and K p interactions at 32 GeV/c,” Phys. Atom. Nucl. 58, 1877 (1995).

    ADS  Google Scholar 

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Funding

This work was supported by grant no. 18-02-40044 from the Russian Foundation for Basic Research.

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Correspondence to O. Kodolova.

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Kodolova, O., Cheremnova, M., Lokhtin, I. et al. Factorial Moments in the NICA/MPD Experiment. Phys. Part. Nuclei 52, 658–662 (2021). https://doi.org/10.1134/S106377962104033X

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  • DOI: https://doi.org/10.1134/S106377962104033X

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