CP VIOLATION FROM SLEPTON OSCILLATIONS AT THE LHC AND NLC

In supersymmetric theories the charged sleptons of different generatio ns may oscillate amongst themselves while they decay. In the case of t hree generation oscillations, superpartner production at the LHC and N LC may lead to an observable CP-vioIating signal N('e(+)mu(-)) -N(mu()e(-)). This signal is proportional to a CP-violating invariant of the slepton mass matrix, (J) over tilde, which is not constrained by sear ches for the electric dipole moment of the electron. The sensitivity o f the LHC and NLC to this signal is highly dependent on superpartner m asses, but (J) over tilde may be probed to a level of 10(-3). Observat ion of the CP-violating signal would imply a definite structure for th e slepton mass matrices and have strong implications for models of fla vor and SUSY breaking. (C) 1997 Elsevier Science B.V.