Search for Anomalous Top-Quark Couplings with the D0 Detector

Authors

• V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Gregory Snow, University of Nebraska-LincolnFollow
• D0 Collaboration

Document Type

Article

Date of this Version

3-6-2009

Comments

Published in PHYSICAL REVIEW LETTERS 102, 092002 (2009). Copyright © 2009 The American Physical Society. Used by permission.

Abstract

Anomalous Wtb couplings modify the angular correlations of the top-quark decay products and change the single top-quark production cross section. We present limits on anomalous top-quark couplings by combining information from W boson helicity measurements in top-quark decays and anomalous coupling searches in the single top-quark final state. We set limits on right-handed vector couplings as well as left-handed and right-handed tensor couplings based on about 1 fb^-1 of data collected by the D0 experiment.