Abstract
Models of maximal flavor violation (MxFV) in elementary particle physics may contain at least one new scalar SU(2) doublet field that couples the first and third generation quarks (, ) via a Lagrangian term . These models have a distinctive signature of same-charge top-quark pairs and evade flavor-changing limits from meson mixing measurements. Data corresponding to collected by the Collider Dectector at Fermilab II detector in collisions at are analyzed for evidence of the MxFV signature. For a neutral scalar with and coupling , signal events are expected over a background of events. Three events are observed in the data, consistent with background expectations, and limits are set on the coupling for .
- Received 29 September 2008
DOI:https://doi.org/10.1103/PhysRevLett.102.041801
©2009 American Physical Society