  We present the first study of charged-hadron production associated with jets
originating from b quarks in proton-proton collisions at a center-of-mass
energy of 5.02 TeV. The data sample used in this study was collected with the
CMS detector at the CERN LHC and corresponds to an integrated luminosity of
27.4 pb$^{-1}$. To characterize the jet substructure, the differential jet
shapes, defined as the normalized transverse momentum distribution of charged
hadrons as a function of angular distance from the jet axis, are measured for b
jets. In addition to the jet shapes, the per-jet yields of charged particles
associated with b jets are also quantified, again as a function of the angular
distance with respect to the jet axis. Extracted jet shape and particle yield
distributions for b jets are compared with results for inclusive jets, as well
as with the predictions from the PYTHIA and HERWIG++ event generators.
