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Testing charm quark thermalisation within the Statistical Hadronisation Model

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arxiv 1807.01236 v2 pith:PINTBHEV submitted 2018-07-03 nucl-th hep-ph

Testing charm quark thermalisation within the Statistical Hadronisation Model

classification nucl-th hep-ph
keywords momentumtransversecharmcollisionsdatahadronisationmodelpb-pb
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 $\rm{J}/\psi$ 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 $\rm{J}/\psi$ transverse momentum spectra in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ and $5.02$ TeV.

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