Indirect luminosity measurements with LHCb

We report on two studies of indirect luminosity measurements, using events containing muon final states, in LHCb. The first method exploits elastic two photon dimuon production in LHCb. The process has a theoretical uncertainty of less than 1%, making it an ideal choice for use in performing an indirect luminosity measurement in hadron colliders. Strategies for triggering, selection and background rejection are discussed. Our studies indicate that a measurement precision of 1% can be obtained with 1fb$^-^1$ of data. The second method uses measurements of electroweak boson production where a similar precision can be obtained. It should be possible to measure the luminosity to better than 1% precision by combining both approaches.