Chargino searches at LEP for complex MSSM parameters

Abstract

We reanalyze the results of the chargino searches at LEP (on the basis of the DELPHI 189 GeV data sample), including the possibility of complex MSSM parameters. We point out the possible differences between the complex- and real-parameter analysis. We check that the regions excluded by ``standard'' analyses remain generally robust against the introduction of complex parameters, with the exception of light sneutrino and low $\tan \beta$ scenario, where additional constraints like those given by the $Z^0$ width or electric dipole moment measurements are necessary.

27 pages, 16 figures, uses axodraw.sty

References in corpus (10)

• Renormalization-Group-Improved Effective Potential for the MSSM Higgs Sector with Explicit CP Violation
• Electron and Neutron Electric Dipole Moments in the Constrained MSSM
• Reconstructing the Chargino System at $e^{+}{e}^{-}$ Linear Colliders
• Constraints on Phases of Supersymmetric Flavour Conserving Couplings
• A Resolution to the Supersymmetric CP Problem with Large Soft Phases via D-branes
• Implications of Supersymmetry Phases for Higgs Boson Signals and Limits
• Chargino Pair Production at $e^{+}{e}^{-}$ Colliders with Polarized Beams
• Search for Charginos with a Small Mass Difference with the Lightest Supersymmetric Particle at \sqrt{s} = 189 GeV
• Search for Heavy Stable and Long-Lived Particles in e+e- Collisions at sqrt(s)=189 GeV
• Search for charginos in e+e- interactions at sqrt(s) = 189 GeV

Cited by in corpus (5)

• Higgs bosons of the NMSSM with explicit CP violation at the ILC
• CP sensitive observables in chargino production with transverse $e^{\pm }$ beam polarization
• CP violation in unpolarized e^+ e^- to charginos at one loop level
• Neutral Higgs bosons in the MNMSSM with explicit CP violation
• Effects of Lepton Flavour Violation on Chargino Production at the Linear Collider