(Non)thermal aspects of charmonium production and a new look at J/ψ suppression
By P. Braun-Munzinger, J. Stachel. 2000
497 citations recorded by the source corpus.
Abstract To investigate a recent proposal that J/ψ production in ultra-relativistic nuclear collisions is of thermal origin we have reanalyzed the data from the NA38/50 Collaboration within a thermal model including charm. Comparison of the calculated with measured yields demonstrates the non-thermal origin of hidden charm production at SPS energy. However, the ratio ψ′/(J/ψ) exhibits, in central nucleus-nucleus collisions, thermal features which lead us to a new interpretation of open charm and charmonium production at SPS energy. Implications for RHIC and LHC energy measurements will be discussed.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/477be51f2f0c0bb0e1526a7d50b5f712c786c594
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In Nuclear and High Energy Physics
Citations in the corpus
- J/ψ suppression at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV (2016, background): “In order to explain these observations, theoretical models require a contribution from J/ψ regeneration via a recombination mechanism [23,24] between the c and c quarks, during the deconfined phase and/or at the hadronisation of the system, which occurs when its temperature falls below the critical ”
- Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions (2015, background): “Therefore a scenario was proposed, in which charm quarks, formed in a high energy nuclear collision in initial hard scattering, find themselves colourscreened, therefore deconfined in a QGP, and hadronise with light quarks and gluons at the phase boundary [647, 710, 711].”