Measurement of D$^0$-meson + hadron two-dimensional angular correlations in Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 200 GeV

The collaboration
Phys.Rev.C 102 (2020) 014905, 2020.

Abstract (data abstract)
BNL-RHIC. Two-dimensional angular correlations of D0-mesons with charged hadrons, projected on delEta and delPhi at sNN−−−sqrt=200GeV in STAR are presented. The correlations are fit with a 2D function containing components to capture the 2D jet-peak (Gaussian on delEta and delPhi), the azimuthal harmonics (dipole, quadrupole), and the constant offset. These fits are performed on the data in the three presented centrality bins, and the evolution of these extracted fit values with centrality discussed. Additionally, the per-trigger, near side yield (i.e. the per-trigger yield in the jet-like peak) is extracted and centrality evolution presented. The results indicate strong interaction of the charm-quark or D0-meson with the medium.

• #### Figure 4a

Left-most panel of Fig. 4.

10.17182/hepdata.95209.v1/t1

Amplitude of the quadrupole term, A_Q, extracted from the fitting of the correlations, presented as a function of centrality.

• #### Figure 4b

Center panel of Fig. 4.

10.17182/hepdata.95209.v1/t2

Width of the near-side gaussian on the delPhi coordinate extracted from the fitting of the correlations, presented as a function...

• #### Figure 4c

Right-most panel of Fig. 4.

10.17182/hepdata.95209.v1/t3

Width of the near-side gaussian on the delEta coordinate extracted from the fitting of the correlations, presented as a function...

• #### Figure 5

Fig. 5 from the paper.

10.17182/hepdata.95209.v1/t4

Per-trigger yield of the near-side 2D gaussian, presented as a function of centrality.

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