منابع مشابه
Determining the existence and nature of the quark-gluon plasma by Upsilon suppression at the LHC
Minijet production in √ s = 5.5 TeV Pb+Pb collisions at the LHC is expected to produce a gluon-dominated plasma with large initial temperatures and energy densities. We discuss the implications of the high initial temperatures on the screening mass and on the relative suppression of members of the Υ family. We demonstrate that pT -dependence of the Υ /Υ ratio is only expected if a quark-gluon p...
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It is shown that the critical threshold for percolation of the overlapping strings exchanged in heavy ion collisions can naturally explain the sharp strong suppresion of J/ψ shown by the experimental data on central Pb–Pb collisions, which does not occur in central O–U and S–U collisions.
متن کاملColor singlet suppression of quark-gluon plasma formation.
The rate of quark-gluon plasma droplet nucleation in superheated hadronic matter is calculated within the MIT bag model. The requirements of color singletness and (to less extent) fixed momentum suppress the nucleation rate by many orders of magnitude, making thermal nucleation of quark-gluon plasma droplets unlikely in ultrarelativistic heavy-ion collisions if the transition is first order and...
متن کاملJ/q/SUPPRESSION BY QUARK-GLUON PLASMA FORMATION ~
If high energy heavy ion collisions lead to the formation of a hot quark-gluon plasma, then colour screening prevents ce binding in the deconfined interior of the interaction region. To study this effect, the temperature dependence of the screening radius, as obtained from lattice QCD, is compared with the J/~' radius calculated in charmonium models. The feasibility to detect this effect clearl...
متن کاملQuark-Gluon Plasma Signatures
Aspects of quark-gluon plasma signatures that can be measured by CMS are discussed. First the initial conditions of the system from minijet production are introduced, including shadowing effects. Color screening of the Upsilon family is then presented, followed by energy loss effects on charm and bottom hadrons, high pT jets and global observables. ∗) This work was supported in part by the Dire...
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ژورنال
عنوان ژورنال: TURKISH JOURNAL OF PHYSICS
سال: 2018
ISSN: 1300-0101,1303-6122
DOI: 10.3906/fiz-1707-13