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arXiv · 1807.01236

Testing charm quark thermalisation within the Statistical Hadronisation Model

A. Andronic·P. Braun-Munzinger·M. K. Koehler·J. Stachel
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Abstract

A wealth of data on charmonium production in Pb-Pb collisions from the LHC experiments has provided strong evidence for (re-)generation as a dominant production mechanism at low transverse momentum. We present an important extension of the statistical hadronisation model to describe $\rm{J}/ψ$ transverse momentum distributions based on input parameters from hydrodynamical simulations. Comparison to the data allows the testing of the degree of thermalisation of charm quarks in the quark-gluon plasma. To this end we will report analyses of the $\rm{J}/ψ$ transverse momentum spectra in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ and $5.02$ TeV.

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A. Andronic, P. Braun-Munzinger, M. K. Koehler, J. Stachel. 2018-08-02. Testing charm quark thermalisation within the Statistical Hadronisation Model. https://doi.org/10.1016/j.nuclphysa.2018.09.004

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