Quarkonium feed down and sequential suppression

By S. Digal, P. Petreczky, H. Satz. 2001

245 citations recorded by the source corpus.

About 40-50% of the quarkonium ground states J/psi (1S) and Y(1S) produced in hadronic collisions originate from the decay of higher excitations. In a hot medium, these higher states are dissociated at lower temperatures than the more tightly bound ground states, leading to a sequential suppression pattern. Using new finite temperature lattice results, we specify the in-medium potential between heavy quarks and determine the dissociation points of different quarkonium states. On the basis of recent Collider Detector at Fermilab (CDF) data on bottomonium production, we then obtain first predictions for sequential Y suppression in nuclear collisions.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b9452c985bb9f65d8d2403c1b3de295e37cfd59b

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In Nuclear and High Energy Physics

Citations in the corpus

Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at sNN=5.02 TeV (2018, background): “Their spectral functions are modified as a consequence of Debye screening of the heavy-quark potential at finite temperatures [3,4], as well as by thermal broadening of their widths due to interactions with gluons [5,6].”
Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions (2015, background): “As a consequence, the in-medium dissociation probability of these states should provide an estimate of the initial temperature reached in the collisions [645].”
J/ψ suppression at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV (2016, background): “Theoretical calculations predict J/ ψ suppression to be induced by the screening of the colour force in a deconfined medium and to become stronger as t he QGP temperature increases [12, 13].”
J/ψ Production at High Transverse Momenta in P+p and Au + Au Collisions at √SNN=200 GeV (2013, background): “k-Gluon Plasma (QGP), takes place. Measurements of the in-medium dissociation probability of the diﬀerent quarkonium states are expected to provide an estimate ofthe initial temperature of the system [1, 2, 3]. The J/ψis the lightest and most abundantly produced quarkonium state accessible in experi”
Properties of hot and dense matter from relativistic heavy ion collisions (2015, background): “Further theoretical development considering the J/ψ meson and all its excited states led to the prediction of “sequential melting” at different temperatures [361, 362, 363] of charmonia with a hierarchy determined”