Adam, J. ; Galatyuk, Tetyana ; Harabasz, Szymon ; Seck, Florian
Hrsg.: STAR Collaboration (2020)
Beam-energy dependence of the directed flow of deuterons in Au+Au collisions.
In: Physical Review C, 102 (4)
doi: 10.1103/PhysRevC.102.044906
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We present a measurement of the first-order azimuthal anisotropy v1 of deuterons from Au+Au collisions at √sNN=7.7, 11.5, 14.5, 19.6, 27, and 39 GeV recorded with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The energy dependence of the v1(y) slope, dv1/dy|y=0, for deuterons, where y is the rapidity, is extracted for semicentral collisions (10%–40% centrality) and compared with that of protons. While the v1(y) slopes of protons are generally negative for √sNN>10GeV, those for deuterons are consistent with zero, a strong enhancement of the v1(y) slope of deuterons is seen at the lowest collision energy (the largest baryon density) at √sNN=7.7GeV. In addition, we report the transverse momentum dependence of v1 for protons and deuterons. The experimental results are compared with transport and coalescence models.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Adam, J. ; Galatyuk, Tetyana ; Harabasz, Szymon ; Seck, Florian |
| Art des Eintrags: | Bibliographie |
| Titel: | Beam-energy dependence of the directed flow of deuterons in Au+Au collisions |
| Sprache: | Englisch |
| Publikationsjahr: | 16 Oktober 2020 |
| Verlag: | APS |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review C |
| Jahrgang/Volume einer Zeitschrift: | 102 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1103/PhysRevC.102.044906 |
| Kurzbeschreibung (Abstract): | We present a measurement of the first-order azimuthal anisotropy v1 of deuterons from Au+Au collisions at √sNN=7.7, 11.5, 14.5, 19.6, 27, and 39 GeV recorded with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The energy dependence of the v1(y) slope, dv1/dy|y=0, for deuterons, where y is the rapidity, is extracted for semicentral collisions (10%–40% centrality) and compared with that of protons. While the v1(y) slopes of protons are generally negative for √sNN>10GeV, those for deuterons are consistent with zero, a strong enhancement of the v1(y) slope of deuterons is seen at the lowest collision energy (the largest baryon density) at √sNN=7.7GeV. In addition, we report the transverse momentum dependence of v1 for protons and deuterons. The experimental results are compared with transport and coalescence models. |
| Zusätzliche Informationen: | Art.No.: 044906 |
| 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: | 09 Nov 2023 12:01 |
| Letzte Änderung: | 15 Dez 2023 09:46 |
| PPN: | 514116838 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum