Vector-like quark interpretation of excess in Higgs signal strength

There is a +2σ deviation in the average Higgs-signal strength for all the 7+8+13 TeV data up to Summer 2018. We find that a slight reduction of the bottom-Yukawa coupling can fit the data better than the standard model. We suggest an extension with a vector-like quark doublet, of which the right-han...

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Bibliographic Details
Main Authors: Kingman Cheung, Wai-Yee Keung, Jae Sik Lee, Po-Yan Tseng
Format: Article
Language:English
Published: Elsevier 2019-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319307051