Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-28
Phys.Lett. B376 (1996) 127-135
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex, 18 pages, 5 figures appended in a uuencoded file
Scientific paper
10.1016/0370-2693(96)00191-8
We evaluate one-loop contributions to the C and P conserving $WW\gamma, WWZ$ form factors in the Minimal Supersymmetric Standard Model (MSSM), and in a more constrained Supergravity Grand Unified Theory (SUGRA-GUT). A systematic search of maximal effects in the available parameter space, shows that at LEP2 energy MSSM contributions can hardly reach the border of the most optimistic accuracy expected on those couplings, even for particles close to their production thresholds. At NLC energies, the effects are more comfortably of the order of the expected sensitivity, and may therefore provide useful information on MSSM parameter values which will not be available from direct particle production. We also discuss briefly some variance with other studies.
Arhrib Abdesselam
Kneur Jean-Loic
Moultaka Gilbert
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