Triply differential cross sections for single ionization of He by proton impact

We report triply differential cross sections for single ionization of helium by proton impact at the incident energy of 75 keV. The calculation is based on the Glauber approximation (GA) method. The effect of post collision interaction has been taken into account approximately. A comparison is made of the present calculation with the results of other theoretical methods and experiment. At low and intermediate momentum transfers the present GA results are in reasonably good agreement with experiment.