Some angle dependent characteristics of charged shower particles produced at high energies

The angular distributions of showers in lab. and c.m. systems have been studied for various effective target thickness. Also the variation of particle number densities in lab. and c.m. systems has been given as a function of ν-bar. It is observed that the particle density decreases with effective target mass in the most forward region in laboratory system whereas it shows an increasing trend in the c.m. system. The results seem to agree with CMT type of pictures of interaction. Some results on variation of RA with ν-bar in different η-intervals have also been presented. (author)