Manifestations of Top Compositeness at Colliders

Details Manifestations of Top Compositeness at Colliders Manifestations of Top Compositeness at Colliders

2009-01-24

arxiv.org/abs/0901.3808v2

JHEP 0905:022,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 6 figures, updated figure 6, updated references, final version published in JHEP

Scientific paper

10.1088/1126-6708/2009/05/022

We explore the possibility that the right-handed top quark is composite, identifying possible signatures of compositeness and how they might manifest themselves at the LHC and Tevatron. We perform a complete analysis of the dimension six modifications of the top coupling to gluons and find that cancellations among operators in the t\bar{t} rate allow for very low compositeness scales, but this can be drastically improved by looking at kinematic distributions. Turning to the LHC, we examine four top production from a dimension six four-top operator and estimate the LHC with 100 {\rm fb}^{-1} collected luminosity to be sensitive to compositeness scales as high as 5 TeV.

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