SEARCH FOR ANOMALOUS KINEMATICS IN ${\rm t{\bar t}}$ DILEPTON EVENTS AT CDF II

Abstract

We report on a search for anomalous kinematics of [Formula: see text] dilepton events in [Formula: see text] collisions at [Formula: see text] using 193.5 pb-1 of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from Standard Model expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and we find that the probability to obtain a data sample less consistent with the Standard Model than what is observed is 1.0–4.5%.