ϒ production and nuclear modification at forward rapidity in Pb–Pb collisions at

The production of ϒ mesons in Pb–Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{{s}_{\mathrm{NN}}}=5.02$ TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region $2.5