Search for anomalous Wtb couplings in single top quark production in ppˉ collisions at s√=1.96 TeV

0379937 - FZÚ 2013 RIV NL eng J - Journal Article
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … Total 409 authors
Search for anomalous Wtb couplings in single top quark production in ppˉ collisions at s√=1.96 TeV.
Physics Letters. B. Roč. 708, 1-2 (2012), s. 21-26. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT LA08047
Institutional research plan: CEZ:AV0Z10100502
Keywords : coupling tensor * vector * single production * Batavia TEVATRON Coll * D0
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.569, year: 2012
http://www.sciencedirect.com/science/article/pii/S0370269312000275

We present new direct constraints on a general Wtb interaction using data corresponding to an integrated luminosity of 5.4 fb−1 collected by the D0 deWtector at the Tevatron ppˉ collider. The standard model provides a purely left-handed vector coupling at the Wtb vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the Wtb coupling.
Permanent Link: http://hdl.handle.net/11104/0210783