Characteristic W-ino signals in a linear collider from anomaly mediated supersymmetry breaking - art. no. 115001

Though the minimal model of anomaly-mediated supersymmetry breaking has bee n significantly constrained by recent experimental and theoretical work, th ere are still allowed regions of the parameter space for moderate to large values of tan beta. We show that these regions will be comprehensively prob ed in a roots = 1 TeV e(+)e(-) linear collider. Diagnostic signals to this end are studied by zeroing in on a unique and distinct feature of a large c lass of models in this genre: a neutral W-ino-like lightest supersymmetric particle closely degenerate in mass with a W-ino-like chargino. The pair pr oduction processes e(+)e(-) --> (e) over tilde (=)(L)(e) over tilde (-/+)(L ), (e) over tilde (+/-)(R)(e) over tilde (-/+)(R), (e) over tilde (+/-)(L)( e) over tilde (-/+)(R), <(<nu>)over tilde>v, <(<chi>)over tilde>(0)(1)<(<ch i>)over tilde>(0)(2), <(<chi>)over tilde>(0)(2)<(<chi>)over tilde>(0)(2) ar e all considered at root (s) = 1 TeV corresponding to the proposed DESY TEV Energy Superconducting Linear Accelerator in two natural categories of mas s ordering in the sparticle spectra, The signals analyzed comprise multiple combinations of fast charged leptons (any of which can act as the trigger) plus displaced vertices X-D (any of which can be identified by a heady ion izing track terminating in the detector) and/or associated soft pions with characteristic momentum distributions.