Abstract
The production of electrons from beauty-hadron decays was measured at midrapidity in proton-proton () and central Pb-Pb collisions at center-of-mass energy per nucleon-nucleon pair = 5.02 TeV, using the ALICE detector at the LHC. The cross section measured in collisions in the transverse momentum interval was compared with models based on perturbative quantum chromodynamics calculations. The yield in the 10% most central Pb-Pb collisions, measured in the interval , was used to compute the nuclear modification factor , extrapolating the reference cross section to larger than 8 . The measured shows significant suppression of the yield of electrons from beauty-hadron decays at high and does not show a significant dependence above within uncertainties. The results are described by several theoretical models based on different implementations of the interaction of heavy quarks with a quark-gluon plasma, which predict a smaller energy loss for beauty quarks compared to light and charm quarks.
- Received 16 December 2022
- Accepted 25 July 2023
DOI:https://doi.org/10.1103/PhysRevC.108.034906
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©2023 CERN, for the ALICE Collaboration