E-resources
Peer reviewed
Open access
-
Adam, J.; Adams, J. R.; Adkins, J. K.; Bellwied, R.; Cai, X. Z.; Caines, H.; Calderón de la Barca Sánchez, M.; Chatterjee, A.; Chattopadhyay, S.; Chen, J.; Chen, Z.; Choudhury, S.; Crawford, H. J.; Daugherity, M.; Dixit, P.; Evdokimov, O.; Fazio, S.; Feng, Y.; Geurts, F.; Guryn, W.; Han, Y.; Harrison, H.; Herrmann, N.; Hu, C.; Hu, Y.; Huang, T.; Huang, Y.; Jacobs, W. W.; Jia, J.; Ju, X.; Kabir, M. L.; Kang, K.; Kauder, K.; Keane, D.; Kikoła, D. P.; Kramarik, L.; Kumar, L.; Kumar, S.; Lan, S.; Li, X.; Liu, T.; Ljubicic, T.; Llope, W. J.; Luo, X. F.; Ma, L.; Markert, C.; Matis, H. S.; Mondal, M. M.; Nagy, M. I.; Nasim, Md; Nayak, K.; Nelson, J. M.; Nishitani, R.; Nonaka, T.; Odyniec, G.; Okubo, K.; Pawlik, B.; Perkins, C.; Prozorova, V.; Pruthi, N. K.; Przybycien, M.; Qin, Z.; Qiu, H.; Raha, N.; Reed, R.; Sahoo, N. R.; Sako, H.; Salur, S.; Schmitz, N.; Sikora, R.; Singha, S.; Skoby, M. J.; Stanislaus, T. S.; Sumbera, M.; Sun, X. M.; Surrow, B.; Tang, A. H.; Thomas, J. H.; Timmins, A. R.; Tribedy, P.; Truhlar, T.; Tsang, C. Y.; Ullrich, T.; Upsal, I.; Van Buren, G.; Vanek, J.; Verkest, V.; Wang, G.; Webb, J. C.; Weidenkaff, P. C.; Wieman, H.; Ye, Z.; Yi, L.; Zbroszczyk, H.; Zhang, D.; Zhang, S.; Zhang, Z.; Zhao, J.; Zhou, C.; Zhu, X.
Physical review. C, 02/2023, Volume: 107, Issue: 2Journal Article
Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. Here, in this paper, we present second (v2) and third (v3) order azimuthal anisotropies of $K_{S}^{0}$, Φ, Λ, Ξ, and Ω at midrapidity (|y| < 1) in Au+Au collisions at $\sqrt{s_{NN}}$= 54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v$^{3/2}_{2}$ are studied and motivated by hydrodynamical calculations. The ratio of v2 of Φ mesons to that of antiprotons v2(Φ)/v2($\overline{p}$) shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.
