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Search for single top quark production via contact interactions at LEP2

AuthorsAbdallah, J.; Fernández Menéndez, Javier ; Rivero, M.; Ferrer, Antonio ; Fuster, Juan ; Salt, José ; Tortosa, Pablo ; Zupan, M.; García García, Carmen ; Oyanguren, Arantza ; Perepelitsa, Vassil; Costa, María José ; DELPHI Collaboration
Issue DateFeb-2011
CitationEuropean Physical Journal C: Particles and Fields 71(2): 1555 (2011)
AbstractSingle top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-of-mass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb−1. No evidence for a signal was found. Limits on the energy scale Λ, were set for scalar-, vector- and tensor-like coupling scenarios.
Description13 páginas, 8 figuras, 5 tablas.-- This article is distributed under the terms of the Creative Commons Attribution Noncommercial License.-- DELPHI Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1140/epjc/s10052-011-1555-z
Appears in Collections:(IFIC) Artículos
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