Beyond the standard MSSM

Beyond the Mssm *

Specific quasi-realistic superstring constructions often predict the existence of new TeV-scale physics which may be different in character from bottom-up motivated constructions. I describe examples of such beyond the MSSM physics, with special emphasis on heavy Z ′ gauge bosons and associated exotic particles. Implications of an extra U (1) ′ include a viable scienario for electroweak baryoge...

Beyond the MSSM

To increase the predictivity of the Minimal Supersymmetric Standard Model (MSSM), one needs to go to an underlying, more fundamental theory, where at least some of the many MSSM parameters can be determined by symmetries or by dynamics. Progress may come from four-dimensional superstring solutions and their effective supergravities. Summarizing some recent work [1–3], we introduce a class of ‘l...

New Phenomena Beyond Both the Standard Model and MSSM 1 2

The Standard Model (SM) is in complete agreement with present experimental data. Nevertheless, it is believed to leave many questions unanswered, and this belief has resulted in numerous attempts to nd a more fundamental underlying theory. One key ingredient in the extrapolation of the SM to higher energies is to identify the complete particle spectrum at the electroweak scale. Two popular exam...

New Phenomena beyond Both the Standard Model and Mssm 1 2 Extended Gauge Sectors

Signals for new, non-supersymmetric physics at hadron colliders are reviewed. We focus on extended gauge sectors and new matter particles. OVERVIEW The Standard Model (SM) is in complete agreement with present experimental data. Nevertheless, it is believed to leave many questions unanswered, and this belief has resulted in numerous attempts to nd a more fundamental underlying theory. One key i...

Minimal Supersymmetric Standard Model (MSSM)