$B$-hadron cross-section measurement in $pp$ collisions at $\sqrt{s} = 14$ TeV with the ALICE muon spectrometer

ALICE (A Large Ion Collider Experiment) is the LHC detector designed to measure nucleus-nucleus ($AA$) collisions where the formation of the Quark Gluon Plasma is expected. The experiment will also study proton-proton ($pp$) collisions at 14 TeV. Amongst the relevant observables to be investigated in $pp$ collisions, the $B$-hadron cross-section is particularly interesting since it provides benchmarks for theoretical models and it is mandatory for understanding heavy flavour production in $AA$ collisions. The performances of the ALICE muon spectrometer to measure $B$-hadron cross-section in $pp$ collisions at 14 TeV via single muons are presented.