  A collision system scan involving $\alpha$-clustered $^{12}$C and $^{16}$O is
studied by using a multiphase transport model for central collisions at
$\sqrt{s_{NN}} = 6.37$ TeV. Background subtracted away-side dihadron azimuthal
correlation is performed via the zero yield at minimum (ZYAM) method from raw
signals, and the quantitative parameters, such as RMS width and Kurtosis, seem
nicely follow the $A^{-1/3}$ law of the system size if the nucleus has the
normal Woods-Saxon nucleon distribution. However, for $\alpha$-clustering light
nuclei, specifically for $^{12}$C and $^{16}$O, the RMS width and Kurtosis of
away-side azimuthal correlation are deviated from the baseline of $A^{-1/3}$
law. In addition, the momentum dependence of away-side broadening parameters is
also presented. The results show that there is a distinction in away-side
broadening parameters of dihadron correlation function between the Woods-Saxon
distribution and the $\alpha$-clustered structures, which sheds light on that
the collision system scan for dihadron azimuthal correlation as a potential
probe to distinguish $\alpha$-clustered nuclei.
