TESTING CPT INVARIANCE WITH THE NEUTRAL-D SYSTEM

We investigate the issue of testing CPT invariance in the neutral-D sy stem, using D events obtained either from fixed-target experiments or from a tau-charm factory. For both types of experiments we show that t he expected suppression of mixing in the D system, normally viewed as a disadvantage for CP tests, allows unsuppressed measurement of certai n parameters describing CPT violation. Asymmetries are presented that permit the extraction of parameters for direct CPT violation in the D system and for indirect CPT violation in the K system. We also show th at experiments on the neutral-D system provide an alternative means fo r measuring conventional indirect T violation in the kaon system.