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Search for the Flavor-Changing Neutral-Current Decay t -> Zq in pp Collisions at s=1.96 TeV

Aaltonen, T; Adelman, J; Akimoto, T; Albrow, MG; Alvarez Gonzalez, B; Amerio, S; Amidei, D; ... CDF Collaboration, ; + view all (2008) Search for the Flavor-Changing Neutral-Current Decay t -> Zq in pp Collisions at s=1.96 TeV. Physical Review Letters , 101 (19) , Article 192002. 10.1103/PhysRevLett.101.192002. Green open access

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Abstract

We report a search for the flavor-changing neutral-current decay of the top quark t -> Zq (q=u, c) in pp<collisions at s=1.96 TeV using a data sample corresponding to an integrated luminosity of 1.9 fb(-1) collected by the CDF II detector. This decay is strongly suppressed in the standard model and an observation of a signal at the Fermilab Tevatron would be an indication of physics beyond the standard model. Using Z+>= 4 jet final state candidate events, with and without an identified bottom quark jet, we obtain an upper limit of B(t -> Zq)< 3.7% at 95% C.L.

Type: Article
Title: Search for the Flavor-Changing Neutral-Current Decay t -> Zq in pp Collisions at s=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.101.192002
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.101.192002
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: P(P)OVER-BAR COLLISIONS, TOP-QUARK, DETECTOR, PHYSICS
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/151953
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