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Production of J/Ψ-Particles at RHIC and LHC Energies: An Alternative “Psi”-Chology

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DOI: 10.4236/ojm.2012.22003    2,524 Downloads   5,492 Views  

ABSTRACT

We attempt here to understand successfully some crucial aspects of J/Ψ-production in some high energy nuclear collisions in the light of a non-standard framework outlined in the text. It is found that the results arrived at with this main working approach here is fairly in good agreement with both the measured data and the results obtained on the basis of some other models of the ‘standard’ variety. Impact and implications of this comparative study have also been precisely highlighted in the end.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

P. Guptaroy, G. Sau, S. Biswas and S. Bhattacharyya, "Production of J/Ψ-Particles at RHIC and LHC Energies: An Alternative “Psi”-Chology," Open Journal of Microphysics, Vol. 2 No. 2, 2012, pp. 19-26. doi: 10.4236/ojm.2012.22003.

References

[1] T. Matsui and H. Satz, “J/Ψ Suppression by Quark-Gluon Plasma Formation,” Physics Letters B, Vol. 178, No. 4, 1986, pp. 416-422. doi:10.1016/0370-2693(86)91404-8
[2] R. L. Thews and M. L. Mangano, “Momentum Spectra of Charmonium Produced in a Quarkgluon Plasma,” Physical Review C, Vol. 73, No. 1, 2006, Article ID: 014904. doi:10.1103/PhysRevC.73.014904
[3] P. Guptaroy, B. De, G. Sanyal and S. Bhattacharyya, “J/Ψ Production in High Energy Particle and Nuclear Collisions: Suppressed, Enhanced or Just Normal?” International Journal of Modern Physics A, Vol. 20, No. 20-21, 2005, pp. 5037-5058. doi:10.1142/S0217751X05020768
[4] P. Guptaroy, T. K. Garain and S. Bhattacharyya, “J/Ψ Production in Some RHIC Interactions at = 200 GeV and the Look into the System Size Effect,” Hadronic Journal, Vol. 31, No. 5, 2008, p. 451.
[5] P. Guptaroy, T. K. Garain, Goutam Sau, S. K. Biswas and S. Bhattacharyya, “Analysing J/Ψ Production in Various RHIC Interactions with a Version of Sequential Chain Model (SCM),” Hadronic Journal, Vol. 32, No. 1, 2009, p. 95.
[6] S. Bhattacharyya, “Collisions in Space Experiments at HighEnergies, Laboratory Experiments and Suggested Signatures of Quark Gluon-Plasma: An Alternative Approach to the Analysis of Actual Observations,” IL Nuovo Cimento C, Vol. 11, No. 1, 1988, pp. 51-65. doi:10.1007/BF02507895
[7] P. Guptaroy, G. Sau, S. K. Biswas and S. Bhattacharyya, “Understanding the Characteristics of Multiple Production of Light Hadrons in Cu + Cu Interactions at Various RHIC Energies—A Model-Based Analysis,” IL Nuovo Cimento B, Vol. 125, No. 9, 2010, p. 1071.
[8] P. Guptaroy, G. Sau, S. K. Biswas and S. Bhattacharyya, “On Production of Direct Photons and Neutral Pions in RHIC Experiments at = 200 GeV,” Modern Physics Letters A, Vol. 23, No. 14, 2008, pp. 1031-1046. doi:10.1142/S021773230802567X
[9] S. Bhattacharyya, “On Some Remarkable Differences between the pp Collider Results at CERN and pp Reaction at ISR Energies,” Journal of Physics G, Vol. 14, No. 1, 1988, pp. 9-17. doi:10.1088/0305-4616/14/1/005
[10] C. Y. Wong, “Introduction to High-Energy Heavy Ion Collisions,” World Scientific, Singapore, 1994. doi:10.1142/9789814277549
[11] A. Adare, et al., “J/Ψ Suppression at Forward Rapidity in Au + Au Collisions at =200 GeV,” Physical Review C, Vol. 84, No. 5, 2011, Article ID: 054912.
[12] D. E. Kahana and S. H. Kahana, “J/Ψ Production by Charm Quark Coalescence,” Journal of Physics G, Vol. 37, No. 11, 2010, Article ID: 115011. doi:10.1088/0954-3899/37/11/115011
[13] B. Z. Kopeliovich, “Puzzles of J/Ψ Production off Nuclei,” Nuclear Physics A, Vol. 854, No. 1, 2011, pp. 187-197.
[14] K. Nakamura, et al., “Review of Particle Physics,” Journal of Physics G, Vol. 37, No. 7A, 2010, Article ID: 075021. doi:10.1088/0954-3899/37/7A/075021
[15] A. Adare, et al., “Cold Nuclear Matter Effects on J/Ψ Production as Constrained by Deuteron-Gold Measurements at =200 GeV,” Physical Review C, Vol. 77, No. 2, 2008, Article ID: 024912. doi:10.1103/PhysRevC.77.024912
[16] A. Adare, et al., “J/Ψ Production in =200 GeV Cu + Cu Collisions,” Physical Review Letters, Vol. 101, No. 12, 2008, Article ID: 122301. doi:10.1103/PhysRevLett.101.122301
[17] B. Alver, et al., “System Size and Centrality Dependence of Charged Hadron Transverse Momentum Spectra in Au + Au and Cu + Cu Collisions at = 62.4 and 200 GeV,” Physical Review Letters, Vol. 96, No. 21, 2006, Article ID: 212301. doi:10.1103/PhysRevLett.96.212301
[18] S. S. Adler, et al., “Identified Charged Particle Spectra and Yields in Au + Au Collisions at = 200 GeV,” Physical Review C, Vol. 69, No. 3, 2004, Article ID: 034909. doi:10.1103/PhysRevC.69.034909
[19] A. Adare, et al., “J/Ψ Production versus Transverse Momentum and Rapidity in p + p Collisions at =200 GeV,” Physical Review Letters, Vol. 98, No. 23, 2007, Article ID: 232002. doi:10.1103/PhysRevLett.98.232002
[20] G. M. García, “Quarkonium Production Measurements with the ALICE Detector at the LHC,” Journal of Physics G, Vol. 37, No. 9, 2010, Article ID: 094051.
[21] A. Adare, et al., “Cold Nuclear Matter Effects on J/Ψ Yields as a Function of Rapidity and Nuclear Geometry in Deuteron-Gold Collisions at = 200 GeV,” 2010. arXiv:1010.1246v1 [nucl-ex]
[22] R. Arnaldi, “Measurement of J/Ψ Production in pp Collisions at = 2.76 and 7 TeV with ALICE,” Journal of Physics G, Vol. 38, No. 12, 2011, Article ID: 124106. doi:10.1088/0954-3899/38/12/124106
[23] P. Pillot, “J/Ψ Production at Forward Rapidity in Pb-Pb Collisions at = 2.76 TeV, Measured with the ALICE Detector,” Journal of Physics G, Vol. 38, No. 12, 2011, Article ID: 124111. doi:10.1088/0954-3899/38/12/124111

  
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