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Ring and jet study on the azimuthal substructure of pions at CERN SPS energy

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Abstract

We have presented an investigation on the ring- and jet-like azimuthal angle substructures in the emission of secondary charged hadrons coming from 32S–Ag/Br interactions at 200 A GeV/c. Nuclear photographic emulsion technique has been employed to collect the experimental data. The presence of such substructures, their average behaviour, their size, and their position of occurrence have been examined. The experimental results have also been compared with the results simulated by Monte-Carlo method. The analysis strongly indicates the presence of ring- and jet-like structures in the experimental distributions of particles beyond statistical noise. The experimental results are in good agreement with I M Dremin idea, that the phenomenon is similar to the emission of Cherenkov electromagnetic radiation.

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References

  1. C Y Wong, Introduction to high-energy heav y-ion collisions (World Scientific, Singapore, 1994) E Shuryak, Phys. Rep. 61, 71 (1979) K Yagi, T Hatsuda and Y Make, Quark-gluon plasma (Cambridge University Press, New York, 2005)

  2. L Van Hove, Z. Phys. C21, 93 (1984)

    Google Scholar 

  3. R C Hwa, W Ochs and N Schmitz (Ed), Proc. Workshop on Multiparticle production– Fluctuations and Fractal Structure (Ringberg Castle, Germany, 1991) (World Scientific, Singapore, 1992)

  4. A El-Naghy and K S Abdel-Khalek, Phys. Lett. B299, 370 (1993)

    ADS  Google Scholar 

  5. A El-Naghy et al, J. Phys. Soc. Jpn. Suppl. 58, 741 (1989)

    Article  Google Scholar 

  6. N M Astafyeva, I M Dremin and K A Kotelnikov, hep-ex/9795003 (1997)

  7. A Bialas and R Peschanski, Nucl. Phys. B273, 703 (1986) A Bialas and R Peschanski, Nucl. Phys. B308, 857 (1988)

    Google Scholar 

  8. R Peschanski, XXII Int. Symp. on Multiparticle Dynamics (Santiago di Compostella, Spain, 1992)

  9. A B Apanasenko, N A Dobrotin, I M Dremin and K A Kotelnikov, Pis’ma Zh. Eksp. Teor. Fiz. 30, 157 (1979)

    Google Scholar 

  10. EMU01 Collaboration: M I Adamovich et al, Nucl. Phys. B388, 3 (1992)

    Article  ADS  Google Scholar 

  11. G L Gogiberidge, E L Sarkisyan and L K Gelovani, Nucl. Phys. Proc. Suppl. B92, 75 (2001)

    Article  ADS  Google Scholar 

  12. G L Gogiberidge, E L Sarkisyan and L K Gelovani, Phys. Atom. Nucl. 64, 143 (2006)

    Article  ADS  Google Scholar 

  13. S Vokál, A Vokálová, A Kravčáková, S Lehocká and G I Orlova, Peculiarities in produced particles emission in 208Pb+Ag(Br) interactions at 158 A GeV/c, Proc. Hadron Structure (Smoline Castle, Slovakia, 2004)

  14. I M Dremin, Pisma v ZhETF 30, 152 (1979)

    Google Scholar 

  15. I M Dremin, Jad. Fiz. 33, 1357 (1981)

    Google Scholar 

  16. I M Dremin, Pisma v ZhETF 34, 617 (1981)

    Google Scholar 

  17. I M Dremin, hep-ph/0011110 (Nov. 2000)

  18. I M Dremin et al, Phys. Lett. B499, 97 (2001)

    ADS  Google Scholar 

  19. I M Dremin, Nucl. Phys. A767, 233 (2006)

    ADS  Google Scholar 

  20. A E Glassgold, W Heckrotte and K M Watson, Ann. Phys. 6, 1 (1959)

    Article  MathSciNet  ADS  Google Scholar 

  21. D Ghosh et al, Europhys. Lett. 56(5), 639 (2001)

    Article  ADS  Google Scholar 

  22. EMU01 Collaboration: M I Adamovich et al, J. Phys. G: Nucl. Part. Phys. 19, 2035 (1993)

    Article  Google Scholar 

  23. P K Haldar, S K Manna, P Saha and D Ghosh, IJPAP 50, 156 (2012)

    Article  Google Scholar 

  24. E Stenlund et al, Talk given at XXII. Multiparticle Dynamics Symposium (Santiago de Compostella, Spain, July 13–17, 1992)

Download references

Acknowledgements

The authors are grateful to P L Jain, State University of Buffalo, Buffalo, USA for providing them with the exposed and developed emulsion plates used for this analysis and Department of Science and Technology, Government of India for financial assistance through SERC FAST TRACK Scheme for Young Scientists Project. Also they would like to thank Argha Deb, Department of Physics, Jadavpur University and Amitabha Mukhopadhyay, Department of Physics, University of North Bengal for all the support.

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Authors and Affiliations

  1. Department of Physics, Dinhata College, Cooch Behar, 736 135, India

    PRABIR KUMAR HALDAR, SANJIB KUMAR MANNA & PROSENJIT SAHA

  2. Department of Physics, Jadavpur University, Kolkata, 700 032, India

    DIPAK GHOSH

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  1. PRABIR KUMAR HALDAR
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  2. SANJIB KUMAR MANNA
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Correspondence to PRABIR KUMAR HALDAR.

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HALDAR, P.K., MANNA, S.K., SAHA, P. et al. Ring and jet study on the azimuthal substructure of pions at CERN SPS energy. Pramana - J Phys 80, 631–642 (2013). https://doi.org/10.1007/s12043-013-0510-y

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