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Lattice Quantum Chromodynamics (QCD) calculation predicts that acolour-deconfined QCD matter, Quark-Gluon Plasma (QGP), is formed at hightemperature and energy density reached in ultra-relativistic heavy-ioncollisions. Heavy quarks (charm and beauty) are mostly produced by initial hardscatterings before the formation of the QGP. Therefore heavy-flavour hadronsare ideal probes to investigate the properties of the hot and dense QCD matter.In Pb-Pb collisions, a strong suppression of the production of heavy-flavourhadrons with high transverse momentum has been observed. A deeper understandingof heavy-flavour production and interaction with the QGP requires detailedstudies of Cold Nuclear Matter (CNM) effects in order to clarify the role ofinitial- and final-state effects on their production. CNM effects includeshadowing and/or saturation of partons, energy loss in CNM and$k_{\rm{T}}$-broadening. Such effects on heavy quark production can be studiedin proton-nucleus collisions via heavy-flavour decays electrons.High-$p_{\rm{T}}$ electrons are especially interesting because they mainlyoriginate from beauty hadrons. We report the $p_{\rm{T}}$ dependence of thenuclear modification factor ($R_{\rm{pPb}}$) and ratio of cross section ofheavy-flavour decays electrons in p-Pb collisions with different collisionenergies, $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV and $\sqrt{s_{\mathrm{NN}}} =5.02\,$TeV.

Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE