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arXiv · 1709.07376

On the precise determination of the Tsallis parameters in proton - proton collisions at LHC energies

T. Bhattacharyya·J. Cleymans·L. Marques·S. Mogliacci·M. W. Paradza
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Abstract

A detailed analysis is presented of the precise values of the Tsallis parameters obtained in $p-p$ collisions for identified particles, pions, kaons and protons at the LHC at three beam energies $\sqrt{s} = 0.9, 2.76$ and $7$ TeV. Interpolated data at $\sqrt{s} = $ 5.02 TeV have also been included. It is shown that the Tsallis formula provides reasonably good fits to the $p_T$ distributions in $p-p$ collisions at the LHC using three parameters $dN/dy$, $T$ and $q$. However, the parameters $T$ and $q$ depend on the particle species and are different for pions, kaons and protons. As a consequence there is no $m_T$ scaling and also no universality of the parameters for different particle species.

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T. Bhattacharyya, J. Cleymans, L. Marques, S. Mogliacci, M. W. Paradza. 2017-09-21. On the precise determination of the Tsallis parameters in proton - proton collisions at LHC energies. https://doi.org/10.1088/1361-6471%2Faaaea0

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