This paper presents phenomenological results for vector boson pair production at the LHC using the MCFM program. The authors include a new process, $ pp \rightarrow \gamma\gamma $, and update existing processes. They incorporate fragmentation contributions to isolate photons in $ \gamma\gamma $, $ W\gamma $, and $ Z\gamma $ production and account for gluon-gluon initial state contributions. Results are presented for $ \sqrt{s} = 7 $ TeV and $ \sqrt{s} = 14 $ TeV. The study investigates the impact of predictions on distributions relevant to new physics searches. The paper discusses photon fragmentation, which is essential for isolating photons in experimental contexts. It explains the theoretical challenges of collinear singularities between photons and final-state quarks and how they are addressed through fragmentation functions and subtraction formalisms. The authors use the MCFM code with the latest version (v6.0) and default electroweak parameters. They use parton distribution functions (PDFs) from Martin, Stirling, Thorne, and Watt, and include contributions from $ gg \rightarrow V_1V_2 $ processes. The paper presents results for $ \gamma\gamma $, $ W^\pm\gamma $, $ Z\gamma $, $ WW $, $ WZ $, and $ ZZ $ production. For $ \gamma\gamma $ production, the authors compare their results with Diphox and show that the "NLO" gg corrections are significant. They also discuss the impact of isolation cuts on the cross section and the role of Higgs search cuts in di-photon production. For $ W^\pm\gamma $ production, the authors present results using the current MCFM implementation, including the effects of photon radiation in the W decay. They compare their results with CMS measurements and discuss the impact of lepton cuts on the cross section and distributions. They also show that the NLO cross section is significantly larger than the LO cross section, with a K-factor of ~3.2. For $ Z\gamma $ production, the authors discuss the impact of radiation in the Z decay and the role of lepton cuts. They compare their results with CMS measurements and show that the NLO cross section is in good agreement with the Standard Model prediction. For $ WW $ production, the authors present results for the total cross section at $ \sqrt{s} = 7 $ TeV and compare them with ATLAS and CMS measurements. They discuss the impact of jet vetoes on the NLO cross section and the role of gluon-initiated contributions in Higgs searches. The paper concludes that the inclusion of fragmentation contributions and gluon-gluon initial state processes is essential for accurate predictions of vector boson pair production at the LHC. The results are important for understanding the production of vector bosons and their decay products, which are crucial for searches forThis paper presents phenomenological results for vector boson pair production at the LHC using the MCFM program. The authors include a new process, $ pp \rightarrow \gamma\gamma $, and update existing processes. They incorporate fragmentation contributions to isolate photons in $ \gamma\gamma $, $ W\gamma $, and $ Z\gamma $ production and account for gluon-gluon initial state contributions. Results are presented for $ \sqrt{s} = 7 $ TeV and $ \sqrt{s} = 14 $ TeV. The study investigates the impact of predictions on distributions relevant to new physics searches. The paper discusses photon fragmentation, which is essential for isolating photons in experimental contexts. It explains the theoretical challenges of collinear singularities between photons and final-state quarks and how they are addressed through fragmentation functions and subtraction formalisms. The authors use the MCFM code with the latest version (v6.0) and default electroweak parameters. They use parton distribution functions (PDFs) from Martin, Stirling, Thorne, and Watt, and include contributions from $ gg \rightarrow V_1V_2 $ processes. The paper presents results for $ \gamma\gamma $, $ W^\pm\gamma $, $ Z\gamma $, $ WW $, $ WZ $, and $ ZZ $ production. For $ \gamma\gamma $ production, the authors compare their results with Diphox and show that the "NLO" gg corrections are significant. They also discuss the impact of isolation cuts on the cross section and the role of Higgs search cuts in di-photon production. For $ W^\pm\gamma $ production, the authors present results using the current MCFM implementation, including the effects of photon radiation in the W decay. They compare their results with CMS measurements and discuss the impact of lepton cuts on the cross section and distributions. They also show that the NLO cross section is significantly larger than the LO cross section, with a K-factor of ~3.2. For $ Z\gamma $ production, the authors discuss the impact of radiation in the Z decay and the role of lepton cuts. They compare their results with CMS measurements and show that the NLO cross section is in good agreement with the Standard Model prediction. For $ WW $ production, the authors present results for the total cross section at $ \sqrt{s} = 7 $ TeV and compare them with ATLAS and CMS measurements. They discuss the impact of jet vetoes on the NLO cross section and the role of gluon-initiated contributions in Higgs searches. The paper concludes that the inclusion of fragmentation contributions and gluon-gluon initial state processes is essential for accurate predictions of vector boson pair production at the LHC. The results are important for understanding the production of vector bosons and their decay products, which are crucial for searches for