Signatures of the light d(R) scenario at the upgraded tevatron

In scenarios where gluinos and right-handed down-type squarks are relativel y light, motivated, for example, by the SO(10) D terms,jets + is not an ele ment of (T) signals can be observed at the luminosity-upgraded Tevatron, ev en if the remaining squarks are very heavy. Most spectacular signals are ex pected if the right-handed down-type squarks are lighter than the gluino. I n the conventional MSUGRA model with very heavy squarks and the gluino mass , consistent with the LEP bound, on the common gaugino mass, practically no signal is expected in this channel. The possibility of distinguishing betw een various SUGRA-motivated scenarios by exploiting the is not an element o f (T) and the jet P-T distributions, opposite sign dileptons +jets+ is not an element of (T) events and clean trilepton signals have been discussed.