
Data Analysis of LHC Heavy Ion Collision for QGP Study
- 1 Department of Physics, University of Washington, Seattle, WA, 98105
- 2 Laboratory for Particle Physics, Tohoku University, Sendai, 980-0845, JP
- 3 School of Physics and Astronomy, The University of Edinburgh, Edinburgh, United Kingdom
* Author to whom correspondence should be addressed.
Abstract
By recreating the first kind of matter in the history of the universe, the quark-gluon plasma (QGP), through PbPb collisions, scientists can study the state of the early universe after the big bang. In this paper, the data from PbPb collisions collected by the Alice experiment at Large Hardron Collider is analyzed to investigate the properties of the QGP. The team focused on Fourier decomposition of azimuthal and angular correlation analysis, using data at a center-of-mass energy of 5.02 TeV per nucleon pair. The distributions of the transverse momentum p_T, the pseudo-rapidity η and the azimuth angle ϕ were plotted and analyzed. The shapes of plots didn’t perfectly match the predictions because of data fluctuations and the limitations of detectors. However, the trend of positive correlation between the coefficients and the transverse momentum p_T was found. The results confirm previous research findings on the collective motion and anisotropic flow of QGP. The study provides insights into the QGP's behavior and supports the theoretical predictions about its properties.
Keywords
Quark-gluon plasma (QGP), PbPb collisions, Azimuthal correlations.
[1]. Alver, B., & Roland, G. (2010). Collision-geometry fluctuations and triangular flow in heavy-ion collisions. Physical Review C, 81(5). https://doi.org/10.1103/physrevc.81.054905
[2]. Voloshin, S. A., & Zhang, Y. (1996). Flow study in relativistic nuclear collisions by Fourier expansion of azimuthal particle distributions. Zeitschrift Für Physik c Particles and Fields, 70(4), 665–671. https://doi.org/10.1007/s002880050141
[3]. S. Chatrchyan, Khachatryan, V., Sirunyan, A. M., A. Tumasyan, Adam, W., T. Bergauer, Dragicevic, M., J. Erö, C. Fabjan, Friedl, M., R. Frühwirth, Ghete, V. M., Hartl, C., N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, Krammer, M., & I. Krätschmer. (2014). Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions atsNN=2.76TeV. 89(4). https://doi.org/10.1103/physrevc.89.044906
[4]. Gale, C., Jeon, S., & Schenke, B. (2013). HYDRODYNAMIC MODELING OF HEAVY-ION COLLISIONS. International Journal of Modern Physics A, 28(11), 1340011–1340011. https://doi.org/10.1142/s0217751x13400113
[5]. Heinz, U. W., & Snellings, R. (2013). Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions. Annual Review of Nuclear and Particle Science, 63(1), 123–151. https://doi.org/10.1146/annurev-nucl-102212-170540
[6]. Schenke, B., Jeon, S., & Gale, C. (2010). (3+1)D hydrodynamic simulation of relativistic heavy-ion collisions. Physical Review C, 82(1). https://doi.org/10.1103/physrevc.82.014903
[7]. Heinz, U. W., & Snellings, R. (2013). Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions. Annual Review of Nuclear and Particle Science, 63(1), 123–151. https://doi.org/10.1146/annurev-nucl-102212-170540
[8]. Adler, S. S., S. Afanasiev, Aidala, C. A., Ajitanand, N. N., Akiba, Y., Alexander, J., R. Amirikas, L. Aphecetche, Aronson, S. H., Averbeck, R., Awes, T. C., R. Azmoun, V. Babintsev, A. Baldisseri, Barish, K. N., Barnes, P. D., B. Bassalleck, Bathe, S., S. Batsouli, & V. Baublis. (2003). Elliptic Flow of Identified Hadrons inAu+AuCollisions atsNN. Physical Review Letters, 91(18). https://doi.org/10.1103/physrevlett.91.182301
[9]. Wang, Q. (2017). High p T Harmonics in PbPb Collisions at 5.02 TeV. Nuclear Physics A, 967, 397–400. https://doi.org/10.1016/j.nuclphysa.2017.06.014
[10]. Vale, C. M., Back, B. B., Baker, M. D., M. Ballintijn, Barton, D. S., Betts, R. R., Bickley, A. A., Bindel, R., A. Budzanowski, W. Busza, Carroll, A., Decowski, M. P., E. García, George, N., Gulbrandsen, K., Gushue, S., Halliwell, C., Hamblen, J., Heintzelman, G. A., & Henderson, C. (2005). Elliptic flow in Au+Au collisions at RHIC. Journal of Physics G Nuclear and Particle Physics, 31(4), S41–S47. https://doi.org/10.1088/0954-3899/31/4/006
Cite this article
Cao,J.;Li,H.;Liang,H. (2024). Data Analysis of LHC Heavy Ion Collision for QGP Study. Theoretical and Natural Science,56,12-18.
Data availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
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Volume title: Proceedings of the 2nd International Conference on Applied Physics and Mathematical Modeling
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