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We explore for the first time the possibilities to measure anintermediate-mass (mH = 115-140 GeV/c^2) Standard-Model Higgs boson inelectromagnetic proton-lead (pPb) interactions at the CERN Large HadronCollider (LHC) via its b-bbar decay. Using equivalent Weizsaecker-Williamsphoton fluxes and Higgs effective field theory for the coupling gamma-gamma -->H, we obtain a leading-order cross section of the order of 0.3 pb for exclusiveHiggs production in elastic (pPb --> gamma-gamma --> p H Pb) and semielastic(pPb --> gamma-gamma --> Pb H X) processes at sqrt(s) = 8.8 TeV. After applyingvarious kinematics cuts to remove the main backgrounds (gamma-gamma --> b-bbarand misidentified gamma-gamma-->q-qbar events), we find that a Higgs boson withmH = 120 GeV/c^2 could be observed in the b-bbar channel with a3sigma-significance integrating 300 pb^-1 with an upgraded pA luminosity of10^31 cm^-2s^-1. We also provide for the first time semielastic Higgs crosssections, along with elastic t-tbar cross sections, for electromagnetic pp, pAand AA collisions at the LHC.

Study of Higgs boson production and its b-bbar decay in gamma-gamma processes in proton-nucleus collisions at the LHC