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Search for production of single top quarks via tcg and tug flavor-changing-neutral-current couplings.

Abstract:

We search for the production of single top quarks via flavor-changing-neutral-current couplings of a gluon to the top quark and a charm (c) or up (u) quark. We analyze 230 pb{-1} of lepton+jets data from pp[over] collisions at a center of mass energy of 1.96 TeV collected by the D0 detector at the Fermilab Tevatron Collider. We observe no significant deviation from standard model predictions, and hence set upper limits on the anomalous coupling parameters kappa{g}{c}/Lambda and kappa{g}{u}/La...

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Journal:
Physical Review Letters More from this journal
Volume:
99
Issue:
19
Pages:
191802
Publication date:
2007-11-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:180044
UUID:
uuid:f9390e2f-e9eb-4e74-bbfb-f9fe8ab9d7bd
Local pid:
pubs:180044
Source identifiers:
180044
Deposit date:
2012-12-19

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