Abstract
We study the process where represents the standard model (SM) Higgs particle , or the minimal supersymmetric standard model (MSSM) ones and . In each case, we compute the one-loop effects and establish very simple expressions, called supersimple (sim), for the helicity-conserving (dominant) and the helicity-violating (suppressed) amplitudes. Such expressions are then used to construct various cross sections and asymmetries, involving polarized or unpolarized beams and Z-polarization measurements. We examine the adequacy of such expressions to distinguish SM from MSSM effects or from other types of beyond the standard model contributions.
3 More- Received 10 September 2014
DOI:https://doi.org/10.1103/PhysRevD.90.073007
© 2014 American Physical Society