Flavor signatures of isosinglet vector-like down quark model

DOI10.1016/J.NUCLPHYSB.2016.03.012zbMATH Open1334.81116arXiv1402.1023OpenAlexW2298134727MaRDI QIDQ273043

Author name not available (Why is that?)

Publication date: 21 April 2016

Published in: (Search for Journal in Brave)

Abstract: We consider a model where the standard model is extended by the addition of a vector-like isosinglet down-type quark b'. We perform a chi square fit to the flavor physics data and obtain the preferred central values along with errors of all the elements of the measurable 3 X 4 quark mixing matrix. The fit indicates that all the new-physics parameters are consistent with zero and the mixing of the b' quark with the other three is constrained to be small. The current flavor physics data rules out possibility of detectable new physics signals in most of the flavor physics observables. We also investigate possible deviations in the standard model Wtb couplings and bottom quark coupling to Higgs boson. We find that these deviations are less than a percent level which is too small to be observed at the LHC with current precision.

Full work available at URL: https://arxiv.org/abs/1402.1023

Mathematics Subject Classification ID

No records found.

This page was built for publication: Flavor signatures of isosinglet vector-like down quark model

Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q273043)