Top physics: search for anomalous kinematics in t anti-t dilepton events at cdf ii

Acosta, D. ; Collaboration, The CDF

Lawrence Berkeley National Laboratory

关键词: 43 Particle Accelerators;    Probability;    Physics;    Standard Model;    Fermilab Collider Detector;   

DOI  :  10.2172/842926
RP-ID  :  LBNL--58140
RP-ID  :  AC03-76SF00098
RP-ID  :  842926

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report on a search for anomalous kinematics of t{bar t} dilepton events in p{bar p} collisions at {radical}s = 1.96 TeV using 193 pb{sup -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 (SM) 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 of obtaining a data sample less consistent with the SM than what is observed is 1.0-4.5%.