Experimental Study of the Production of Eta Mesons and Kaons in Cu + Au Interactions at 200 GeV

  • A. Ya. Berdnikov
  • Ya. A. Berdnikov
  • S. V. ZharkoEmail author
  • D. O. Kotov
  • P. V. Radzevich


The first traces of the formation of strongly interacting quark–gluon plasma (sQGP) were found in central collisions of heavy nuclei (A + A) in experiments on the RHIC collider. The quenching of hadron jets, which is seen as a reduction in the yield of particles in A + A collisions relative to their yield in proton–proton collisions, is one observable sign of sQGP formation. Asymmetrical Cu + Au collisions at 200 GeV, which are characterized by a distinct geometry of nucleus overlap that differs from the geometry in symmetrical collision systems (Au + Au or Cu + Cu), are of special interest in systematic studies of the quenching of hadron jets. The results are presented from measuring invariant transverse-momentum spectra and nuclear modification factors of mesons containing strange quarks in Cu + Au collisions at 200 GeV.



This work was performed as part of State Task no. 3.1498.2017/4.6 from the RF Ministry of Education and Science.


  1. 1.
    Shuryak, E.V., Phys. Rep., 1980, vol. 61, p. 71.ADSMathSciNetCrossRefGoogle Scholar
  2. 2.
    Adcox, K., et al., Nucl. Phys. A, 2005, vol. 757, p. 184.ADSCrossRefGoogle Scholar
  3. 3.
    Arnold, P.B., et al., J. High Energy Phys., 2002, no. 06, p. 30.Google Scholar
  4. 4.
    Adcox, K., et al., Nucl. Instrum. Methods Phys. Res., Sect. A, 2003, vol. 499, p. 469.Google Scholar
  5. 5.
    Allen, M., et al., Nucl. Instrum. Methods Phys. Res., Sect. A, 2003, vol. 499, p. 549.Google Scholar
  6. 6.
    Miller, M.L., et al., Annu. Rev. Nucl. Part. Sci., 2007, vol. 57, p. 205.ADSCrossRefGoogle Scholar
  7. 7.
    Aphecetche, L., et al., Nucl. Instrum. Methods Phys. Res., Sect. A, 2003, vol. 499, p. 521.Google Scholar
  8. 8.
    Brun R., et al., Geant: simulation program for particle physics experiments. User guide and reference manual, Preprint of European Organization for Nuclear Research, Geneva, 1978, no. CERN-DD-78-2.Google Scholar
  9. 9.
    Adler, S.S., et al., Phys. Rev. C, 2007, vol. 75, p. 024909.ADSCrossRefGoogle Scholar
  10. 10.
    Adare, A., et al., Phys. Rev. C, 2010, vol. 82, p. 011902.ADSCrossRefGoogle Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • A. Ya. Berdnikov
    • 1
  • Ya. A. Berdnikov
    • 1
  • S. V. Zharko
    • 1
    Email author
  • D. O. Kotov
    • 1
  • P. V. Radzevich
    • 1
  1. 1.Peter the Great St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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