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The transverse momentum and pseudorapidity dependences of partonic{`\it{Mach-like}'} shock wave have been studied by using a multi-phasetransport model (AMPT) with both partonic and hadronic interactions. Thesplitting parameter $D$, i.e. half distance between two splitting peaks on awayside in di-hadron azimuthal angular ($\Delta\phi$) correlations, slightlyincreases with the transverse momentum of associated hadrons ($p^{assoc}_T$),which is consistent with preliminary experimental trend, owing to differentinteraction-lengths/numbers between wave partons and medium in strong partoncascade. On the other hand, the splitting parameter $D$ as a function ofpseudorapidity of associated hadrons ($\eta^{assoc}$), keeps flat inmid-pseudorapidity region and rapidly drops in high-pseudorapidity region,which is as a result of different violent degrees of jet-medium interactions inthe medium that has different energy densities in the longitudinal direction.It is proposed that the research on the properties of {`\it{Mach-like}'}correlation can shed light on the knowledge of both partonic and hadronicinteractions at RHIC.

Transverse momentum and pseudorapidity dependences of $'\bm{Mach-like}'$ correlations for central Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV