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Production of Light Neutral Mesons in Ultrarelativistic Cu + Au and U + U Collisions in the Region of Mean Velocities

Abstract

Results are presented from measuring nuclear modification factors RAA of the π0, η, KS, and ω mesons produced in systems of Cu + Au and U + U collisions at cms energies of \(\sqrt {{{s}_{{NN}}}} \) = 200 and 192 GeV, respectively, in the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). The RAA values are found not to depend on the type of neutral meson and to vary in the ~0.4–0.6 and ~0.2–0.3 intervals for central Cu + Au and U + U collisions, respectively. The mean RAA values for different collision systems (Au + Au, Cu + Cu, Cu + Au, and U + U) are found to coincide within the measuring errors when estimated at comparable values of collision energy \(\sqrt {{{s}_{{NN}}}} \), and of the number of nucleons participating in a nucleus–nucleus collision, Npart.

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REFERENCES

  1. 1

    Arsene, I., Bearden, I.G., Beavis, D., et al., Nucl. Phys. A, 2005, vol. 757, p. 1.

    ADS  Article  Google Scholar 

  2. 2

    Back, B., Baker, M.D., Ballintijn, M., et al., Nucl. Phys. A, 2005, vol. 757, p. 28.

    ADS  Article  Google Scholar 

  3. 3

    Adams, J., Aggarwal, M.M., Ahammed, Z., et al., Nucl. Phys. A, 2005, vol. 757, p. 102.

    ADS  Article  Google Scholar 

  4. 4

    Adcox, K. et al. (PHENIX Collab.), Nucl. Phys. A, 2005, vol. 757, p. 184.

    ADS  Article  Google Scholar 

  5. 5

    Chatrchyan, S., Khachatryan, V., Sirunyan, A.M., et al., Eur. Phys. J. C, 2012, vol. 72, 1945.

    ADS  Article  Google Scholar 

  6. 6

    Abelev, B. et al. (ALICE Collab.), Phys. Lett. B, 2013, vol. 720, p. 52.

    ADS  Article  Google Scholar 

  7. 7

    Aad, G. et al. (ATLAS Collab.), Phys. Lett. B, 2013, vol. 719, p. 220.

    ADS  Article  Google Scholar 

  8. 8

    Foka, P. and Janik, M.A., Rev. Phys., 2016, vol. 1, p. 154.

    Article  Google Scholar 

  9. 9

    Bjorken, J.D., Energy loss of energetic partons in quark-gluon plasma: Possible extinction of high p(T) jets in hadron-hadron collisions, report no. FERMILAB-PUB-82-059-T, 1982.

  10. 10

    Baier, R., Schiff, D., and Zakharov, B.G., Ann. Rev. Nucl. Part. Sci., 2000, vol. 50, p. 37.

    ADS  Article  Google Scholar 

  11. 11

    Wang, X.-N., Gyulassy, M., and Plumer, M., Phys. Rev. D: Part. Fields, 1995, vol. 51, p. 3436.

    ADS  Article  Google Scholar 

  12. 12

    Majumder, A., Müller, B., and Wang, X.-N., Phys. Rev. Lett., 2007, vol. 99, 192301.

    ADS  Article  Google Scholar 

  13. 13

    Xu, J., Buzatti, A., and Gyulassy, M., J. High Energy Phys., 2014, vol. 2014, 063.

  14. 14

    Cao, S., Cai, X.Z., and Zhang, G.Q., Phys. Rev. C, 2016, vol. 94, 014909.

    ADS  Article  Google Scholar 

  15. 15

    Chien, Y.T. and Vitev, I., J. High Energy Phys., 2016, vol. 2016, 23.

    Article  Google Scholar 

  16. 16

    Elayavalli, R.K. and Zapp, K.C., J. High Energy Phys., 2017, vol. 2017, 141.

    Article  Google Scholar 

  17. 17

    Djordjevic, M., Zigic, D., Blagojevic, B., et al., Nucl. Phys. A, 2019, vol. 982, p. 699.

    ADS  Article  Google Scholar 

  18. 18

    Heinz, U., Phys. Rev. Lett., 2005, vol. 94, 132303.

    ADS  Article  Google Scholar 

  19. 19

    Adcox, K., Borland, D., Adler, S.S., et al., Nucl. Instrum. Methods Phys. Res.,Sect. A, 2003, vol. 499, p. 469.

    Google Scholar 

  20. 20

    Allen, M., Xu, N., Bennett, M.J., et al., Nucl. Instrum. Methods Phys. Res.,Sect. A, 2003, vol. 499, p. 549.

    Google Scholar 

  21. 21

    Miller, M.L., Reygers, K., Sanders, S.J., et al., Ann. Rev. Nucl. Part. Sci., 2007, vol. 57, p. 205.

    ADS  Article  Google Scholar 

  22. 22

    Aphecetche, L., D’Enterria, D.G., Delagrange, H., et al., Nucl. Instrum. Methods Phys. Res.,Sect. A, 2003, vol. 499, p. 521.

    Google Scholar 

  23. 23

    Aidala, C., Ajitanand, N.N., Akiba, Y., et al., Phys. Rev. C, 2018, vol. 98, 054903.

    ADS  Article  Google Scholar 

  24. 24

    Tanabashi, M., Hagiwara, K., Hikasa, K., et al., Phys. Rev. D: Part. Fields, 2018, vol. 98, 030001.

    ADS  Article  Google Scholar 

  25. 25

    Brun, R., Hagelberg, R., Hansroul, M., et al., GEANT: Simulation program for particle physics experiments. User guide and reference manual, Preprint CERN, CERN-DD-78-2-REV, 1978.

  26. 26

    Adare, A. et al. (PHENIX Collab.), Phys. Rev. D: Part. Fields, 2011, vol. 83, 052004.

    ADS  Article  Google Scholar 

  27. 27

    Adare, A. et al. (PHENIX Collab.), Phys. Rev. C: Nucl. Phys., 2011, vol. 84, 044902.

    ADS  Article  Google Scholar 

  28. 28

    Adare, A. et al. (PHENIX Collab.), Phys. Rev. D: Part. Fields, 2007, vol. 76, 051106.

    ADS  Article  Google Scholar 

  29. 29

    Adare, A. et al. (PHENIX Collab.), Phys. Rev. D: Part. Fields, 2016, vol. 93, 011501.

    ADS  Article  Google Scholar 

  30. 30

    Adare, A. et al. (PHENIX Collab.), Phys. Rev. D: Part. Fields, 2011, vol. 83, 032001.

    ADS  Article  Google Scholar 

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Funding

This work was performed as part of a State Task from the RF Ministry of Education and Science.

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Correspondence to S. Zharko.

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Translated by A. Asratyan

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Berdnikov, A., Berdnikov, Y., Zharko, S. et al. Production of Light Neutral Mesons in Ultrarelativistic Cu + Au and U + U Collisions in the Region of Mean Velocities. Bull. Russ. Acad. Sci. Phys. 84, 1269–1274 (2020). https://doi.org/10.3103/S1062873820100068

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