  A technique for improving the momentum resolution for low momentum charged
particles in few layer silicon based trackers is presented. The particle
momenta are determined from the measured Landau dE/dx distribution and the
Bethe-Bloch formula in the 1/beta^2 region. It is shown that a factor of two
improvement of the momentum determination is achieved as compared to standard
track fitting methods. This improvement is important in large scale heavy ion
experiments which cover the low transverse momentum spectra using stand-alone
silicon tracking devices with a few planes like the ones used in STAR at RHIC
and ALICE at LHC.
