\begin{document}$ F(z) $\end{document}, relative momentum \begin{document}$ p_{T}^{\rm rel} $\end{document}, density of charged particles \begin{document}$ \rho(r) $\end{document}, jet angularity \begin{document}$ girth $\end{document}, jet momentum dispersion \begin{document}$ p_{T}^{\rm disp} $\end{document}, and \begin{document}$ LeSub $\end{document} for proton-proton (pp) collisions at 0.9, 2.76, 5.02, 7, and 13 TeV, as well as for lead-lead collisions at 2.76 TeV and 5.02 TeV by JEWEL. A differential jet shape parameter \begin{document}$ D_{girth} $\end{document} is proposed and studied at a smaller jet radius \begin{document}$ r<0.3 $\end{document}. The results indicate that the medium has the dominant effect on jet shape modification, which also has a weak dependence on the center-of-mass energy. Jet fragmentation is enhanced significantly at very low \begin{document}$ z<0.02 $\end{document}, and fragmented jet constituents are linearly spread to larger jet-radii for \begin{document}$ p_{T}^{\rm rel}<1 $\end{document}. The waveform attenuation phenomena is observed in \begin{document}$ p_{T}^{\rm rel} $\end{document}, \begin{document}$ girth $\end{document}, and \begin{document}$ D_{girth} $\end{document} distributions. The results obtained for \begin{document}$ D_{girth} $\end{document}from \begin{document}${\rm pp} $\end{document} to \begin{document}$ {\rm Pb+Pb} $\end{document}, where the wave-like distribution in \begin{document}$ {\rm pp} $\end{document} collision is ahead of \begin{document}$ {\rm Pb+Pb} $\end{document} collisions at small jet-radii, indicates a strong medium effect."> Jet shape modification at LHC energies by JEWEL -
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