| The search for a magnetic monopole continues, spurred by the motivation to explain charge quantization, to impart symmetry to Maxwell's equations, to introduce new physics and to confirm or to refute predictions presented in many gauge theories. To promote the search for a Dirac monopole, specifically searches at colliders such as the LHC or Tevatron, we present here the process of photon fusion as an additional process to the DrellYan mechanism for monopole pair production.; When predicting monopole production at the Tevatron with a center of mass energy of 1.96 TeV, we find the cross section of the photon fusion process, induced through the inelastic scattering of quarks, comparable to that reported for the DrellYan mechanism for a monopole mass in the range of 100 GeV ≤ mm ≤ 500 GeV. Next, by adding the cross section for photon fusion to the Drell-Yan cross section, we conclude that the lower mass limit of the magnetic monopole can be extended up to 40 GeV beyond the 360 GeV reported by the CDF experiment.; With a center of mass energy seven times greater than that of the Tevatron, the LHC at CERN offers an excellent opportunity to renew the search for a Dirac monopole. However, unlike the Tevatron which is a p p collider, the LHC is a pp collider, rendering the LHC less suitable to the DrellYan process as compared to the photon fusion process for monopole pair production. We report here the cross section for monopole pair production via the photon fusion process for inelastic scattering at the LHC. With an integrated luminosity of 100 fb -1 and assuming a magnetic monopole mass of 600 GeV, we anticipate the LHC could produce over 10 million monopole pairs of by the process of photon fusion. By comparison, we estimate the DrellYan process may yield less than 1 million events. |
