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One of the primary goals of the Large Hadron Collider is to understand theelectroweak symmetry breaking mechanism. In the Standard Model, electroweaksymmetry breaking is described by the Higgs mechanism which includes a scalarHiggs boson. Electroweak measurements constrain the Standard Model Higgs bosonmass to be in the 114.4 to 157 GeV/c^2 range. Within this mass window, theHiggs predominantly decays into two b-quarks. As such, we investigate theprospect of observing the Standard Model Higgs decaying to b\bar{b} produced inweak-boson-fusion with an associated central photon. An isolated, high pt,central photon trigger is expected to be available at the ATLAS and CMSexperiments. In this study, we investigated the effects originating fromshowering, hadronization, the underlying event model, and jet performanceincluding b-jet calibration on the sensitivity of this channel. We found thatthe choice of Monte Carlo and Monte Carlo tune has a large effect on theefficacy of the central jet veto and consequently the signal significance. Asignal significance of about 1.86 can be achieved for m(Higgs)=115 GeV/c^2 with100 1/fb of integrated luminosity which correspond to one year at designluminosity at 14 TeV pp collisions.

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Prospects for Observing the Standard Model Higgs Boson Decaying into  b\bar{b} Final States Produced in Weak Boson Fusion with an Associated Photon  at the LHC