CP violation in very high energyp $\bar p$ collisions

Abstract

We investigate the consequences of a CP violating gauge invariant pointlike four-fermion interaction at the TeV scale. It induces an enhancement of the production cross-sections$\sigma \left( {p\bar p \to e^ - \bar v_e + X} \right)$ and$\sigma \left( {p\bar p \to e^ + \bar v_e + X} \right)$, together with a CP violating relative difference between these cross-sections at the % level, due to interference with radiative corrections. A complete calculation of the CP asymmetry is made for different values of the center of mass energy$\sqrt s = 2, 10, 40 TeV$, 40 TeV.