Vector-like quark interpretation for the CKM unitarity violation, excess in Higgs signal strength, and bottom quark forward-backward asymmetry

Vector-like quark interpretation for the CKM unitarity violation, excess in Higgs signal strength, and bottom quark forward-backward asymmetry

Abstract Due to a recent more precise evaluation of V ud and V us , the unitarity condition of the first row in the Cabibbo-Kobayashi-Maskawa (CKM) matrix: |V ud | 2 +|Vus| 2 +|V ub | 2 = 0.99798 ± 0.00038 now stands at a deviation more than 4σ from unity. Furthermore, a mild excess in the overall H...

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Bibliographic Details
Main Authors: Kingman Cheung, Wai-Yee Keung, Chih-Ting Lu, Po-Yan Tseng
Format: Article
Language:English
Published: SpringerOpen 2020-05-01
Series:Journal of High Energy Physics
Subjects:
Beyond Standard Model
Heavy Quark Physics
Higgs Physics
Quark Masses and SM Parameters
Online Access:http://link.springer.com/article/10.1007/JHEP05(2020)117

Internet

http://link.springer.com/article/10.1007/JHEP05(2020)117

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