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Dielectron measurements during heavy ion collisions at \(\sqrt {s_{NN} }\) = 200 GeV in the PHENIX experiment at RIHC

  • Proceedings of the International Conference “Nucleus-2012”. “Fundamental Problems of Nuclear Physics, Atomic Power Engineering and Nuclear Technologies” (The 62nd International Conference on Nuclear Spectroscopy and the Structure of Atomic Nuclei)
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope


The production of dielectron pairs is measured in PHENIX experiment during p + p, d + Au, Cu + Cu, and Au + Au collisions at \(\sqrt {s_{NN} }\) = 200 GeV. In the mass region between φ and J/ψ mesons, the yield is consistent with expectations from correlated production. In the mass region below φ mesons, the p + p and d+ Au spectra are well described by known contributions from light meson decays. In contrast, the Au + Au minimum bias spectrum in this region is enhanced by a factor of 4.7, concentrated at low p T < 1.5 GeV/s and rapidly rising with centrality. Existing theoretical models cannot describe the observed enhancement.

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  1. Adcox, K., et al., Nucl. Phys. A, 2005, vol. 757, nos. 1–2, p. 184.

    Article  Google Scholar 

  2. Horowitz, W.A., et al., Nucl. Phys. A, 2007, vol. 783, p. 493.

    Article  ADS  Google Scholar 

  3. Adcox, K., et al., Nucl. Instrum. Meth. A, 2003, vol. 499, p. 15.

    Google Scholar 

  4. Adare, A., et al., Phys. Rev. C, 2010, vol. 81, p. 034911.

    Article  ADS  Google Scholar 

  5. Adcox, K., et al., Nucl. Instrum. Methods. A, 2003, vol. 499, p. 469.

    Article  ADS  Google Scholar 

  6. Adler, S.S., et al., Phys. Rev. D: Part. Fields, 2007, vol. 76, p. 092002.

    Article  ADS  Google Scholar 

  7. Rapp, R. and Wambach, J., Eur. Phya. J. A, 1999, vol. 6, p. 415.

    Article  ADS  Google Scholar 

Download references

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Correspondence to Yu. G. Riabov.

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Original Russian Text © A.Ya. Berdnikov, D.A. Ivanishchev, D.O. Kotov, V.G. Riabov, Yu.G. Riabov, V.M. Samsonov, 2013, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2013, Vol. 77, No. 7, pp. 992–996.

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Berdnikov, A.Y., Ivanishchev, D.A., Kotov, D.O. et al. Dielectron measurements during heavy ion collisions at \(\sqrt {s_{NN} }\) = 200 GeV in the PHENIX experiment at RIHC. Bull. Russ. Acad. Sci. Phys. 77, 904–907 (2013).

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