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Production of \(\eta_c\) and dimuon enhancement in heavy ion collisions

  • theoretical physics
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Abstract.

Dilepton production in heavy ion collisions in the intermediate mass region (IMR) has consistently shown an excess over theoretical estimates. An attempt to understand this discrepancy between the observed dilepton pairs and the theoretical estimate is made here through the production of the \(\eta_c\) meson and estimates obtained by NRQCD calculations. We find that \(\eta_c\) production offers a satisfactory quantitative picture for explaining the discrepancy.

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References

  1. I. Ravinovich for CERES Coll., Nucl. Phys. A 638, 159C (1998); G. Agakichiev for CERES Coll., Nucl. Phys. B 422, 405 (1998); M. Masera for HELIOS3 Coll., Nucl. Phys. A 590, 93C (1995); A. De Falco for NA38 Coll., Nucl. Phys. A 638, 487C (1998); E. Scomparin for NA50 Coll., J. Phys. G 25, 235 (1999); A. Drees, Nucl. Phys. A 610, 536C (1996)

    Article  Google Scholar 

  2. G.Q. Li, C.M. Ko, G.E. Brown, Phys. Rev. Lett. 75, 4007 (1995); Nucl. Phys. A 606, 568 (1996)

    Article  Google Scholar 

  3. Z. Lin, X.N. Wang, Phys. Lett. B 444, 245 (1998)

    Article  Google Scholar 

  4. I. Tserruya, LANL Archives nucl-ex/9912003 and references therein

  5. R. Rapp, E. Shuryak, Phys. Lett. B 473, 13 (2000)

    Article  Google Scholar 

  6. D. Kharzeev, Nucl. Physics A 638, 279C (1998) and references therein

    Article  Google Scholar 

  7. R. Anishetty, R. Basu, Phys. Lett. B 495, 295 (2000)

    Article  Google Scholar 

  8. G.T. Bodwin, E. Braaten, G.P. Lepage, Phys. Rev. D 51, 1125 (1995); erratum 55, 5853 (1997)

    Article  Google Scholar 

  9. M. Kr\” amer, Prog. Part. Nucl. Phys. 47, 141 (2001)

    Article  Google Scholar 

  10. P. Cho, A.K. Leibovich, Phys. Rev. D 53, 150 (1996)

    Google Scholar 

  11. P. Cho, A.K. Leibovich, Phys. Rev. D 53, 6203 (1996)

    Article  Google Scholar 

  12. K. Sridhar, Phys. Rev. Lett. 77, 4880 (1996)

    Article  Google Scholar 

  13. P. Mathews, P. Poulose, K. Sridhar, Phys. Lett. B 438, 336 (1998)

    Article  Google Scholar 

  14. K.J. Eskola, V.J. Kolhinen, P.V. Ruuskanen, Nucl. Phys. B 535, 351 (1998)

    Article  Google Scholar 

  15. M.C. Abreu et al. , CERN-EP-2000-012, Eur. Phys. J. C 14, 443 (2000)

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. The Institute of Mathematical Sciences, C.I.T. Campus, 600113, Chennai, India

    Rahul Basu

  2. Department of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, 400005, Mumbai, India

    K. Sridhar

Authors
  1. Rahul Basu
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  2. K. Sridhar
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Correspondence to Rahul Basu.

Additional information

Received: 13 August 2003, Revised: 9 February 2004, Published online: 23 March 2004

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Basu, R., Sridhar, K. Production of \(\eta_c\) and dimuon enhancement in heavy ion collisions. Eur. Phys. J. C 34, 367–369 (2004). https://doi.org/10.1140/epjc/s2004-01727-3

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  • DOI: https://doi.org/10.1140/epjc/s2004-01727-3

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