  The production yield of the $\Lambda(1520)$ baryon resonance is measured at
mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV with the
ALICE detector at the LHC. The measurement is performed in the
$\Lambda(1520)\rightarrow {\rm pK}^{-}$ (and charge conjugate) hadronic decay
channel as a function of the transverse momentum ($p_{\rm T}$) and collision
centrality. The $p_{\rm T}$-integrated production rate of $\Lambda(1520)$
relative to $\Lambda$ in central collisions is suppressed by about a factor of
2 with respect to peripheral collisions. This is the first observation of the
suppression of a baryonic resonance at the LHC and the first 3$\sigma$ evidence
of $\Lambda(1520)$ suppression within a single collision system. The measured
$\Lambda(1520)/\Lambda$ ratio in central collisions is smaller than the value
predicted by the statistical hadronisation model calculations. The shape of the
measured $p_{\rm T}$ distribution and the centrality dependence of the
suppression are reproduced by the EPOS3 Monte Carlo event generator. The
measurement adds further support to the formation of a dense hadronic phase in
the final stages of the evolution of the fireball created in heavy-ion
collisions, lasting long enough to cause a significant reduction in the
observable yield of short-lived resonances.
