  Charged-particle jet yields have been measured in semicentral Pb$-$Pb
collisions at center-of-mass energy per nucleon-nucleon collision $\sqrt{s_{\rm
NN}} = 5.02$ TeV with the ALICE detector at the LHC. These yields are reported
as a function of the jet transverse momentum, and further classified by their
angle with respect to the event plane and the event shape, characterized by
ellipticity, in an effort to study the path-length dependence of jet quenching.
Jets were reconstructed at midrapidity from charged-particle tracks using the
anti-$k_{\rm T}$ algorithm with resolution parameters $R =$ 0.2 and 0.4, with
event-plane angle and event-shape values determined using information from
forward scintillating detectors. The results presented in this letter show
that, in semicentral Pb$-$Pb collisions, there is no significant difference
between jet yields in predominantly isotropic and elliptical events. However,
out-of-plane jets are observed to be more suppressed than in-plane jets.
Further, this relative suppression is greater for low transverse momentum ($<$
50 GeV/$c$) $R =$ 0.2 jets produced in elliptical events, with out-of-plane to
in-plane jet-yield ratios varying up to 5.2$\sigma$ between different
event-shape classes. These results agree with previous studies indicating that
jets experience azimuthally anisotropic suppression when traversing the QGP
medium, and can provide additional constraints on the path-length dependence of
jet energy loss.
