"Figure 4 left (MB pPb)" of "Two-particle azimuthal correlations in $\gamma$p interactions using pPb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV"

Single-particle azimuthal anisotropy $v_2$ for minimum bias events as a function of N$_{\text{trk}}$ for $0.3 < p_\mathrm{T} < 3.0 GeV$ in pPb collisions at 8.16 TeV.

在8.16太电子伏特（teraelectronvolt, TeV）的质子-铅核碰撞（proton-lead collision, pPb）中，针对横向动量（transverse momentum, $p_mathrm{T}$）介于0.3 GeV至3.0 GeV之间的粒子，给出最小偏置事件（minimum bias events）下的单粒子方位各向异性$v_2$随径迹数（number of tracks, $mathrm{N_{trk}}$）的变化关系。