Geodesic
Formation time of quark--gluon plasma~in heavy-ion collisions in the~holographic shock wave model
Teoretičeskaâ i matematičeskaâ fizika, Tome 184 (2015) no. 3, pp. 398-417

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We estimate the thermalization time in a holographic model of two colliding shock waves corresponding to heavy-ion collisions. For this, we model the process by the Vaidya metric with a horizon defined by the trapped surface location. We consider two bottom-up AdS/QCD models that in the colliding shock wave approach give a dependence of the multiplicity on energy compatible with the RHIC and LHC results. One model is a bottom-up AdS/QCD confining model, and the other is related to an anisotropic thermalization. We estimate the thermalization time and show that increasing the confining potential decreases the thermalization time and anisotropy accelerates the thermalization.
Keywords: quark–gluon plasma, heavy-ion collision, thermalization, AdS/QCD correspondence, holography, Lifshitz-like metric. 
@article{TMF_2015_184_3_a4,
     author = {I. Ya. Aref'eva},
     title = {Formation time of quark--gluon plasma~in heavy-ion collisions in the~holographic shock wave model},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {398--417},
     publisher = {mathdoc},
     volume = {184},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2015_184_3_a4/}
}
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I. Ya. Aref'eva. Formation time of quark--gluon plasma~in heavy-ion collisions in the~holographic shock wave model. Teoretičeskaâ i matematičeskaâ fizika, Tome 184 (2015) no. 3, pp. 398-417. http://geodesic.mathdoc.fr/item/TMF_2015_184_3_a4/