Open beauty measurements in pPb collisions with CMS

The B+, B0 and Bs0 mesons are exclusively reconstructed in proton-lead (pPb) collisions at sNN=5.02 TeV by the CMS Collaboration at the Large Hadron Collider (LHC). The cross sections are measured in the range of transverse momentum of 10 to 60 GeV/c and the center-of-mass rapidity smaller than 1.93. The nuclear modification factor, which is the ratio of the cross section in between pPb and proton-proton (pp) collisions, is estimated using the experimental data from pPb collisions and theoretical calculations as the pp reference. The calculated nuclear modification factors for each particle species are consistent with unity within the current uncertainties. The forward-to-backward asymmetry of B+ is also analyzed and does not show any nuclear effect in the measured rapidity range.