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Chemical equilibration of QGP in hadronic collisions
We performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after hydrodynamization, but well before local thermalization. By relating the transport properties of QGP and t...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/978-3-030-53448-6_26 http://cds.cern.ch/record/2698976 |
| _version_ | 1780964362112991232 |
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| author | Kurkela, Aleksi Mazeliauskas, Aleksas |
| author_facet | Kurkela, Aleksi Mazeliauskas, Aleksas |
| author_sort | Kurkela, Aleksi |
| collection | CERN |
| description | We performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after hydrodynamization, but well before local thermalization. By relating the transport properties of QGP and the system size we estimate that hadronic collisions with final state multiplicities $dN_{\text {ch}}/d\eta > 10^2$ live long enough to reach approximate chemical equilibrium for all collision systems. Therefore we expect the saturation of strangeness enhancement to occur at the same multiplicity in proton-proton, proton-nucleus and nucleus-nucleus collisions. |
| id | cern-2698976 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26989762023-03-14T17:23:05Zdoi:10.1007/978-3-030-53448-6_26http://cds.cern.ch/record/2698976engKurkela, AleksiMazeliauskas, AleksasChemical equilibration of QGP in hadronic collisionsnucl-thNuclear Physics - Theorynucl-exNuclear Physics - Experimenthep-phParticle Physics - PhenomenologyWe performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after hydrodynamization, but well before local thermalization. By relating the transport properties of QGP and the system size we estimate that hadronic collisions with final state multiplicities $dN_{\text {ch}}/d\eta > 10^2$ live long enough to reach approximate chemical equilibrium for all collision systems. Therefore we expect the saturation of strangeness enhancement to occur at the same multiplicity in proton-proton, proton-nucleus and nucleus-nucleus collisions.We performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after hydrodynamization, but well before local thermalization. By relating the transport properties of QGP and the system size we estimate that hadronic collisions with final state multiplicities $dN_\text{ch}/d\eta > 10^2$ live long enough to reach approximate chemical equilibrium for all collision systems. Therefore we expect the saturation of strangeness enhancement to occur at the same multiplicity in proton-proton, proton-nucleus and nucleus-nucleus collisions.arXiv:1910.06664oai:cds.cern.ch:26989762019-10-15 |
| spellingShingle | nucl-th Nuclear Physics - Theory nucl-ex Nuclear Physics - Experiment hep-ph Particle Physics - Phenomenology Kurkela, Aleksi Mazeliauskas, Aleksas Chemical equilibration of QGP in hadronic collisions |
| title | Chemical equilibration of QGP in hadronic collisions |
| title_full | Chemical equilibration of QGP in hadronic collisions |
| title_fullStr | Chemical equilibration of QGP in hadronic collisions |
| title_full_unstemmed | Chemical equilibration of QGP in hadronic collisions |
| title_short | Chemical equilibration of QGP in hadronic collisions |
| title_sort | chemical equilibration of qgp in hadronic collisions |
| topic | nucl-th Nuclear Physics - Theory nucl-ex Nuclear Physics - Experiment hep-ph Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1007/978-3-030-53448-6_26 http://cds.cern.ch/record/2698976 |
| work_keys_str_mv | AT kurkelaaleksi chemicalequilibrationofqgpinhadroniccollisions AT mazeliauskasaleksas chemicalequilibrationofqgpinhadroniccollisions |