TTP96-29 Prospects for Measuring $\Delta g$ from Jets at HERA with Polarized Protons

The measurement of the polarized gluon distribution

function $\Delta g(x)$  from photon gluon fusion processes in 
electron proton deep inelastic scattering producing
two jets has been investigated. The study is based on the MEPJET
simulation program.
The size of the expected  spin asymmetry
and corresponding statistical uncertainties
for a possible measurement
with polarized beams of electrons and protons  at HERA 
have been estimated.
The results show that the asymmetry can reach a few percents.