Study of beauty hadrons using heavy flavour decay electrons with ALICE detectors at LHC

The thesis utilizes data from the ALICE experiment at Large Hadron Collider, CERN, to measure the production cross-section of electrons from beauty-hadron decays in proton-proton collisions at a center-of-mass energy of √s = 13 TeV. The primary motivations are to investigate electrons from beauty-hadron decays in a higher transverse momentum (pT ) range, extending up to pT = 35 GeV/c, an unexplored domain within the ALICE experiment. Additionally, the measurement aims to test perturbative-QCD calculations and serves as a baseline for studying nuclear modifications in proton-nucleus (p−A) and nucleus-nucleus (A−A) collisions. Such studies provide insights into the effects of cold nuclear matter in p−A collisions and shed light on how the QGP impacts heavy quark's behaviour as they traverse the medium in A−A collisions.