Prospects and Constraints for Vector-like MFV Matter at LHC

Details Prospects and Constraints for Vector-like MFV Matter at LHC Prospects and Constraints for Vector-like MFV Matter at LHC

2010-05-12

arxiv.org/abs/1005.2185v2

JHEP 1008:059,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 4 figures; v2: published in JHEP

Scientific paper

10.1007/JHEP08(2010)059

We examine the prospects for LHC discovery of SU(2)_L singlet vector-like quarks that obey Minimal Flavour Violation (MFV) and are consistent with lower energy phenomenology. We study models where the vector-like quarks have the same quantum numbers as u_R or d_R, allowing mixing, which generally leads to significant low energy constraints. We find that there are two naturally phenomenologically viable MFV models of this type when the Weyl spinor components of the vector-like quarks are flavour triplets. We examine direct production bounds, flavour and electroweak precision data constraints for these models and determine the cross section for allowed values of the model parameters at LHC. For the models we identify as naturally phenomenologically viable, large amounts of parameter space afford a significant early discovery reach at LHC while being consistent with lower energy phenomenology.

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