Journal
NUCLEAR PHYSICS B
Volume 960, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysb.2020.115208
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Funding
- Science and Engineering Research Board [CRG/2019/000362, MTR/2019/000066, DIA/2018/000003]
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While a chiral fourth generation of quarks is almost ruled out from the data on Higgs boson production and decay at the Large Hadron Collider, vector-like quarks are still a feasible option to extend the fermionic sector of the Standard Model. Such an extension does not suffer from any anomalies and easily passes the constraints coming from oblique electroweak parameters. We consider such minimal extensions with SU(2) singlet and doublet vector-like quarks that may mix with one, or at the most two, of the Standard Model quarks. Constraints on the new mixing angles and phases are obtained from several Delta B = 1 and Delta B = 2 processes. (C) 2020 The Author(s). Published by Elsevier B.V.
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