Intriguing similarities of high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>p</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:math> particle production between <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>A</mml:mi><mml:mtext>−</mml:mtext><mml:mi>A</mml:mi></mml:mrow></mml:math> collisions

In this paper we study the particle production at high transverse momentum $({p}_{T}\phantom{\rule{0.16em}{0ex}}&gt;8\phantom{\rule{0.16em}{0ex}}\mathrm{GeV}/c)$ in both $pp$ and Pb-Pb collisions at LHC energies. The characterization of the spectra is done using a power-law function and the resulting power-law exponent $(n)$ is studied as a function of ${x}_{T}$ for minimum-bias $pp$ collisions at different $\sqrt{s}$. The functional form of $n$ as a function of ${x}_{T}$ exhibits an approximate universal behavior. pythia 8.212 reproduces the scaling properties and therefore, it is used to study the multiplicity-dependent particle production. Going from low to high multiplicities, the power-law exponent decreases. A similar behavior is also observed in heavy-ion collisions when one studies the centrality-dependent particle production. The interpretation of heavy-ion results requires the quantification of the impact of this correlation (multiplicity and high ${p}_{T})$ on jet-quenching observables.

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