Seck, Florian ; Galatyuk, Tetyana ; Mukherjee, Ayon ; Rapp, Ralf ; Steinheimer, Jan ; Stroth, Joachim ; Wiest, Maximilian (2022)
Dilepton signature of a first-order phase transition.
In: Physical Review C, 106 (1)
doi: 10.1103/PhysRevC.106.014904
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The search for a first-order phase transition in strongly interacting matter is one of the major objectives in the exploration of the phase diagram of quantum chromodynamics (QCD). In the present work we investigate dilepton radiation from the hot and dense fireballs created in Au-Au collisions at projectile energies of 1–2 A GeV for potential signatures of a first-order transition. Toward this end, we employ a hydrodynamic simulation with two different equations of state, with and without a phase transition. The latter is constrained by susceptibilities at vanishing chemical potential from lattice-QCD as well as neutron star properties, while the former is implemented via modification of the mean fields in the quark phase. We find that the latent heat involved in the first-order transition leads to a substantial increase in the low-mass thermal emission signal by about a factor of two above the crossover scenario.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Seck, Florian ; Galatyuk, Tetyana ; Mukherjee, Ayon ; Rapp, Ralf ; Steinheimer, Jan ; Stroth, Joachim ; Wiest, Maximilian |
| Art des Eintrags: | Bibliographie |
| Titel: | Dilepton signature of a first-order phase transition |
| Sprache: | Englisch |
| Publikationsjahr: | 8 Juli 2022 |
| Verlag: | APS Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review C |
| Jahrgang/Volume einer Zeitschrift: | 106 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1103/PhysRevC.106.014904 |
| URL / URN: | https://journals.aps.org/prc/abstract/10.1103/PhysRevC.106.0... |
| Kurzbeschreibung (Abstract): | The search for a first-order phase transition in strongly interacting matter is one of the major objectives in the exploration of the phase diagram of quantum chromodynamics (QCD). In the present work we investigate dilepton radiation from the hot and dense fireballs created in Au-Au collisions at projectile energies of 1–2 A GeV for potential signatures of a first-order transition. Toward this end, we employ a hydrodynamic simulation with two different equations of state, with and without a phase transition. The latter is constrained by susceptibilities at vanishing chemical potential from lattice-QCD as well as neutron star properties, while the former is implemented via modification of the mean fields in the quark phase. We find that the latent heat involved in the first-order transition leads to a substantial increase in the low-mass thermal emission signal by about a factor of two above the crossover scenario. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Experimentelle Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Experimentelle Kernphysik > Untersuchung von Quark-Materie mit virtuellen Photonen |
| Hinterlegungsdatum: | 19 Jul 2022 07:11 |
| Letzte Änderung: | 18 Nov 2022 08:18 |
| PPN: | 501769137 |
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