Angular Distributions of Dileptons in Polarized Hadronic Collisions: Test of Electroweak Gauge Models

摘要

The angular distributions of high-mass dileptons with large transverse momentum produced in longitudinally polarized hadronic collisions, hadron + hadron implies ( gamma *, Z sub 1 sup(c), Z sub 20 ,...) + X implies l exp + l exp - + X, are calculated in the QCD lowest order. The formulas presented in general form, are applicable to any gauge model of underlying electroweak interactions. Numerical results are obtained for the angular distributions in p-barp-collisions at sqrt s=540 GeV for the Weinberg-Salam, SU(2) x U(1) x U(1)' and SU(2) x SU(2)' x U(1) models. Clearly distinguishable signals are revealed. (Atomindex citation 15:000772)