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Same-sign tops: a powerful diagnostic test for models of new physics
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Journal Article
Same-sign tops: a powerful diagnostic test for models of new physics
2013
Overview
A
bstract
We study the connection between the same sign top (SST) and the top quark forward-backward asymmetry
. We find that a large class of new physics (NP) models that have been proposed to account for the
lead to SST quark production rate much larger than the observed rate at the LHC and consequently are severely constrained or ruled out. Our model independent, general, operator analysis shows that none of the tree- level self-conjugate flavor-changing operators are able to explain
and simultaneously remain consistent with the same-sign top-quark production constraints from the LHC data.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
