Skip to main content
SpringerLink

Induced photon emission from quark jets in ultrarelativistic heavy-ion collisions

  • Fields, Particles, and Nuclei
  • Published:
Journal of Experimental and Theoretical Physics Letters Aims and scope Submit manuscript

Abstract

We study the induced photon bremsstrahlung from a fast quark produced in AA collisions due to multiple scattering in quark-gluon plasma. For RHIC and LHC conditions, the induced photon spectrum is sharply peaked at a photon energy close to the initial quark energy. In this region, the contribution of the induced radiation to the photon fragmentation function exceeds the ordinary vacuum radiation. Contrary to previous analyses [4–7], our results show that, at RHIC and LHC energies, the final-state interaction effects in quark-gluon plasma do not suppress the direct photon production and may even enhance it at p T ∼5–15 GeV.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. Aurenche, LAPTH-CONF-893-2001 (2002), Talk Given at International Workshop on the Physics of the Quark Gluon Plasma (Palaiseau, France, 2001); hepph/0201011.

  2. T. Peitzmann and M. H. Thoma, Phys. Rep. 364, 175 (2002).

    Article  ADS  Google Scholar 

  3. F. Arleo, P. Aurenche, F. Bopp, et al., The CERN Yellow Report on Hard Probes in Heavy Ion Collisions at the LHC; hep-ph/0311131.

  4. A. Dumitru and N. Hammon, hep-ph/9807260 (1998).

  5. J. Jalilian-Marian, K. Orginos, and I. Sarcevic, Nucl. Phys. 700, 523 (2002).

    Google Scholar 

  6. J. Jalilian-Marian, K. Orginos, and I. Sarcevic, Phys. Rev. C 63, 041901 (2001).

    Google Scholar 

  7. S. Jeon, J. Jalilian-Marian, and I. Sarcevic, Phys. Lett. B 562, 45 (2003).

    ADS  Google Scholar 

  8. J. F. Owens, Rev. Mod. Phys. 59, 465 (1987).

    Article  ADS  Google Scholar 

  9. P. Aurenche, R. Baier, M. Fontannaz, and D. Schiff, Nucl. Phys. B 297, 661 (1988).

    Article  ADS  Google Scholar 

  10. B. G. Zakharov, JETP Lett. 63, 952 (1996).

    ADS  Google Scholar 

  11. B. G. Zakharov, JETP Lett. 65, 615 (1997).

    Article  ADS  Google Scholar 

  12. B. G. Zakharov, Phys. At. Nucl. 61, 838 (1998).

    Google Scholar 

  13. B. G. Zakharov, JETP Lett. 70, 176 (1999).

    ADS  Google Scholar 

  14. R. Baier, D. Schiff, and B. G. Zakharov, Annu. Rev. Nucl. Part. Sci. 50, 37 (2000).

    Article  ADS  Google Scholar 

  15. L. D. Landau and I. Ya. Pomeranchuk, Dokl. Akad. Nauk SSSR 92, 535 (1953); Dokl. Akad. Nauk SSSR 92, 735 (1953).

    Google Scholar 

  16. A. B. Migdal, Phys. Rev. 103, 1811 (1956).

    Article  ADS  MATH  Google Scholar 

  17. B. G. Zakharov, in Proceedings of the 33rd Rencontres de Moriond: QCD and High Energy Hadronic Interactions, Ed. by J. Tran Thanh Van (Les Arcs, France, 1998), p. 533; hep-ph/9807396.

    Google Scholar 

  18. B. G. Zakharov, JETP Lett. 73, 49 (2001).

    ADS  Google Scholar 

  19. R. Baier, Yu. L. Dokshitzer, A. H. Mueller, and D. Schiff, J. High Energy Phys. 0109, 033 (2001); hep-ph/0106347 (2001).

  20. R. J. Fries, B. Müller, and D. K. Srivastava, nuclth/0208001 (2003).

  21. B. G. Zakharov, Phys. At. Nucl. 62, 1008 (1999); JETP Lett. 78, 759 (2003).

    Google Scholar 

  22. M. Gyulassy, P. Levai, and I. Vitev, Phys. Lett. B 538, 282 (2002).

    ADS  Google Scholar 

  23. Yu. L. Dokshitzer, V. A. Khoze, and S. I. Troyan, Phys. Rev. D 53, 89 (1996).

    Article  ADS  Google Scholar 

  24. P. Levai and U. Heinz, Phys. Rev. C 57, 1879 (1998).

    ADS  Google Scholar 

  25. J. D. Bjorken, Phys. Rev. D 27, 140 (1983).

    Article  ADS  Google Scholar 

  26. B. B. Back et al. (PHOBOS Collab.), Phys. Rev. C 65, 061901 (2002).

  27. J. Kapusta, L. D. McLerran, and D. K. Srivastava, Phys. Lett. B 283, 145 (1992).

    ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117334, Russia

    B. G. Zakharov

Authors
  1. B. G. Zakharov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 80, No. 1, 2004, pp. 3–8.

Original English Text Copyright © 2004 by Zakharov.

This article was submitted by the author in English.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zakharov, B.G. Induced photon emission from quark jets in ultrarelativistic heavy-ion collisions. Jetp Lett. 80, 1–6 (2004). https://doi.org/10.1134/1.1800202

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.1800202

PACS numbers

Search

Navigation