title: Searching for the odderon in ultraperipheral proton-ion collisions at the LHC
abstract: We explore the possibility of observing odderon exchange in proton-ion collisions at the LHC, via the ultraperipheral photoproduction of C-even mesons. As well as the signal, we consider in detail the principle backgrounds, due to QCD-initiated production (i.e., double pomeron exchange) and $\ensuremath{\gamma}\ensuremath{\gamma}$ fusion. We find that while the photon-initiated background is dominant at very small momentum transfer, this can be effectively removed by placing a reasonable cut on 
journal: Physical review. D/Physical review. D.