Abstract
We derive analytical expressions for the first and second order terms in the hadronic transverse momentum spectra obtained from the Tsallis normalized (Tsallis-1) statistics. We revisit the zeroth order quantum Tsallis distributions in this formulation and obtain the corresponding analytical closed form expressions. It is observed that unlike the classical case, the phenomenological distributions used in the literature do not resemble the analytical closed forms of the zeroth order quantum spectra after the \(q\rightarrow q^{-1}\) substitution, where q is the Tsallis entropic parameter. Though the factorization approximation increases the extent of similarity, it does not make them exactly the same. Since our results are based on the basic formulations of the statistical mechanics, the zeroth order Tsallis quantum distributions derived in this paper will be a better choice than their phenomenological counterparts.
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Data Availability Statement
This manuscript has no associated data or the data will not be deposited. [Authors’ comment:Experimental data analyzed in Fig. 3 are available in the references cited.]
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Authors acknowledge the support from the joint project between the JINR and IFIN-HH. They thank the anonymous reviewers whose comments and questions helped improve the understanding and the quality of the manuscript.
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Communicated by Tamas Biro.
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Bhattacharyya, T., Parvan, A.S. Analytical results for the classical and quantum Tsallis hadron transverse momentum spectra: the zeroth order approximation and beyond. Eur. Phys. J. A 57, 206 (2021). https://doi.org/10.1140/epja/s10050-021-00527-3
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DOI: https://doi.org/10.1140/epja/s10050-021-00527-3