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Re-hardening of hadron transverse mass spectra in relativistic heavy-ion collisions

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Abstract

We analyze the spectra of pions and protons in heavy-ion collisions at relativistic energies from 2 A GeV to 65+65 A GeV by using a jet-implemented hadron-string cascade model. In this energy region, hadron transverse mass spectra first show softening until SPS energies, and re-hardening may emerge at RHIC energies. Since hadronic matter is expected to show only softening at higher energy densities, this re-hardening of spectra can be interpreted as a good signature of the quark-gluon plasma formation

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References

  1. Quark Matter ’97,Proc. 13th Int. Conf. on Ultra-Relativistic Nucleus-Nucleus Collisions, Tsukuba, Japan, 1997, edited by T Hatsuda, Y Miake, S Nagamiya and K Yagi,Nucl. Phys. A638, 3c (1998)

  2. Quark Matter ’99,Proc. 14th Int. Conf. on Ultra-Relativistic Nucleus-Nucleus Collisions, Torino, Italy, 1999, edited by L Riccati, M Masera and E Vercellin,Nucl. Phys. A661, 3c (1999)

  3. T Matsui and H Satz,Phys. Lett. B178, 416 (1986)

    ADS  Google Scholar 

  4. J Rafelski,Phys. Lett. B262, 333 (1991)

    ADS  Google Scholar 

  5. G Q Li, C M Ko and G E Brown,Phys. Rev. Lett. 75, 4007 (1995)

    Article  ADS  Google Scholar 

  6. FOPI Collaboration: N Herrmannet al, Nucl. Phys. A610, 49c (1996)

    ADS  Google Scholar 

  7. P K Sahu, W Cassing, U Mosel and A Ohnishi,Nucl. Phys. A672, 376 (2000)

    ADS  Google Scholar 

  8. R Hagedorn,Nuovo Cimento Suppl. 3, 147 (1965)

    Google Scholar 

  9. H Sorge, H Stöcker and W Greiner,Ann. Phys. (N. Y.) 192, 266 (1989)

    Article  MATH  ADS  Google Scholar 

  10. W Cassing and U Mosel,Prog. Part. Nucl. Phys. 25, 235 (1990)

    Article  ADS  Google Scholar 

  11. N S Amelin, K K Gudima and V D Toneev,Yad. Fiz. 51, 512 (1990),Sov. J. Nucl. Phys. 51, 327 (1990)

    Google Scholar 

  12. S A Bass, M Belkacem, M Bleicher, M Brandstetter, L Bravina, C Ernst, L Gerland, M Hofmann, S Hofmann, J Konopka, G Mao, L Neise, S Soff, C Spieles, H Weber, L A Winckelmann, H Stöcker, W Greiner, C Hartnack, J Aichelin and N Amelin,Prog. Part. Nucl. Phys. 41, 225 (1998)

    Article  Google Scholar 

  13. Y Nara, N Otuka, A Ohnishi, K Niita and S Chiba,Phys. Rev. C61, 024901 (2000)

    ADS  Google Scholar 

  14. Y Pang, T J Schlagel and S H Kahana,Phys. Rev. Lett. 68, 2743 (1992)

    Article  ADS  Google Scholar 

  15. B A Li and C M Ko,Phys. Rev. C52, 2037 (1995)

    ADS  Google Scholar 

  16. N Otuka,Hadronic degrees of freedom in relativistic heavy-ion collisions, Thesis, Hokkaido University, March, 2001

    Google Scholar 

  17. H Ohnishi for the PHENIX Collaboration: Oral presentation at the meeting of Physical Society of Japan, Niigata, Japan, September, 2000

  18. N Xu, Invited talk at the15th Int. Conf. on Ultra-Relativistic Nucleus-Nucleus Collisions, Stony Brook, USA, January, 2001

    Google Scholar 

  19. JACEE Collaboration: Y Takahashiet al, Nucl. Phys. A461, 263c (1987)

    ADS  Google Scholar 

  20. S A Bass and A Dumitru,Phys. Rev. C61, 064909 (2000)

    ADS  Google Scholar 

  21. T Sjöstrand,Comput. Phys. Commun. 82, 74 (1994)

    Article  ADS  Google Scholar 

  22. Y Nara,Nucl. Phys. A638, 555c (1998)

    ADS  Google Scholar 

  23. X N Wang and M Gyulassy,Comput. Phys. Commun. 83, 307 (1994)

    Article  ADS  Google Scholar 

  24. X N Wang,Phys. Rep. 280, 287 (1997)

    Article  Google Scholar 

  25. We have adopted the source code of JAM, which was written before the RHIC experiments started, to avoid any fitting to the data

  26. PHENIX Collaboration: K Adcoxet al, LANL Report No. nucl-ex/0012008

  27. F Videvœk for the BRAHMS Collaboration: Oral presentation at the15th Int. Conf. Ultra-Relativistic Nucleus—Nucleus Collisions, Stony Brook, USA, January, 2001

    Google Scholar 

  28. PHOBOS Collaboration: B B Backet al, Phys. Rev. Lett. 85, 3100 (2000)

    Article  ADS  Google Scholar 

  29. E802 Collaboration: L Ahleet al, Phys. Rev. C57, R466 (1998)

    ADS  Google Scholar 

  30. NA49 Collaboration: Appelshäueseret al, Phys. Rev. Lett. 82, 2471 (1999)

    Article  Google Scholar 

  31. Quark Matter 2001,Proc. 15th Int. Conf. on Ultra-Relativistic Nucleus-Nucleus Collisions, Stony Brook, USA, January, 2001,Nucl. Phys. A698, 3 (2002)

    Google Scholar 

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Authors and Affiliations

  1. Institute of Physics, Sachivalaya Marg, 751 005, Bhubaneswar, India

    P. K. Sahu

  2. Division of Physics, Graduate School of Science, Hokkaido University, 060-0810, Sapporo, Japan

    N. Otuka, M. Isse & A. Ohnishi

  3. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, 319-11, Ibaraki, Japan

    N. Otuka

  4. Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, Robert-Mayer-Str.10, 60325, Frankfurt am Main, Germany

    Y. Nara

Authors
  1. P. K. Sahu
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  2. N. Otuka
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  3. M. Isse
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  4. Y. Nara
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  5. A. Ohnishi
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Sahu, P.K., Otuka, N., Isse, M. et al. Re-hardening of hadron transverse mass spectra in relativistic heavy-ion collisions. Pramana - J Phys 66, 809–816 (2006). https://doi.org/10.1007/BF02704779

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