  The reconstruction of photon conversions is importantin order to improve the
reconstruction efficiency of the physics measurements involving photons.
However, there are significant number of conversions in which only one of the
two tracks emitted electrons is reconstructed in the detector due to very
asymmetric energy sharing between the electron-positron pair. The momentum
determination of the parent photon can be improved by estimating the missing
energy in such conversions. In this study, we propose a simple statistical
method that can be used to determine the mean value of the missing energy. By
using simulated minimum bias events at LHC conditions and a toy detector
simulation, the performance of the method is tested for several decay channels
commonly used in particle physics analyses. A considerable improvement in the
mass reconstruction precision is obtained when reconstructing particles
decaying to photons whose energies are less than 20 GeV.
