The $\Delta M$ distribution (left) and the extracted $v_2$ (right) of deuteron candidates as a function of $\Delta M$ for $0.8 $ $< p_{\rm T}$ $< 1.6$ GeV/$c$ in the centrality interval 0$-$20$\%$ in Xe$-$Xe collisions. The statistical uncertainties on the data points are represented by bars. The measurement is carried out at midrapidity, i.e., $\left|y\right|< 0.5$.