Abstract
In the proceeding, we show the transverse momentum (pT) spectra of identified charged particles such as pion and kaon in Pb + Pb collisions at √sNN = 2.76 TeV using Tsallis distribution function. The power law of Tsallis/Hagedorn distribution function gives very good description of the hadron spectra in pT range from 0.2 to 300 GeV/c in p + p collisions. Here, we use Tsallis distribution function as a fitting function to the data of invariant yield versus pT of pion and kaon at various centralities in Pb + Pb collisions. These published data are taken from ALICE collaboration at mid-rapidity region. The Tsallis parameter T governs the soft bulk contribution to the spectra, and the parameter q shows the nonthermalization of the system. The data/fit shows deviations of the data from the Tsallis distribution. The parameters of such fittings are studied as a function of centralities.
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References
K. Adcox et al. (PHENIX), Nucl. Phys. A 757, 184–283 (2005), J. Adams et al. (STAR), Nucl. Phys. A 757, 102–183 (2005)
N. Armesto et al. (LHC), J. Phys. G 35, 054001 (2008)
E.V. Shuryak, Quantum chromodynamics and the theory of superdense matter. Phys. Rep. 61, 71–158 (1980)
I.G. Bearden et al. (NA44), Phys. Rev. Lett. 78, 2080–2083 (1997)
D. Prorok et al., Eur. Phys. J. A 55, 37 (2019)
X.N. Wang, Phys. Lett. B 579, 299 (2004)
C. Tsallis, J. Stat. Phys. 52, 479 (1988)
R. Hagedorn, Riv. Nuovo Cim. 6N10 1 (1983)
P.K. Khandai, P. Sett, P. Shukla, V. Singh, Int. J. Mod. Phys. A 28, 1350066 (2013)
P.K. Khandai, P. Sett, P. Shukla, V. Singh, J. Phys. G 41, 025105 (2014). arXiv:1310.4022 [nucl-th]
B. Abelev et al., Phys. Rev. C 88, 044910 (2013). arXiv:1303.0737 and references therein
H. Zheng, L. Zhu, A. Bonasera, Phys. Rev. D 92, 074009 (2015). arXiv:1506.03156 [nucl-th]
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We are thankful to all the members of the organizing committee of ACFP-2022, GLAU, and the AIP committee for selecting our proceedings.
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Kumar, P., Khandai, P.K., Saraswat, K., Singh, V. (2022). Identified Charged Particle Production in Pb + Pb Collisions at √sNN = 2.76 TeV Using Tsallis Distribution Function. In: Pandey, K.L., Priya, P.K., Yadav, U.K., Khandai, P.K. (eds) Proceedings of the National Workshop on Recent Advances in Condensed Matter and High Energy Physics. Springer Proceedings in Physics, vol 278. Springer, Singapore. https://doi.org/10.1007/978-981-19-2592-4_19
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DOI: https://doi.org/10.1007/978-981-19-2592-4_19
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