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Article overview
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Constraints on scalar and vector leptoquarks from the LHC Higgs data | Jian Zhang
; Chong-Xing Yue
; Chun-Hua Li
; Shuo Yang
; | Date: |
10 May 2019 | Abstract: | We study contributions of single scalar or vector leptoquark (LQ) to
loop-induced Higgs processes, gluon fusion production ($g g o h$) and $h o
gamma gamma$ decay, by analyzing the current Higgs data from the LHC Run I
and II. Scalar LQ is studied in a model independent way, while the vector LQ
$U_1(mathbf{3},mathbf{1},2/3)$ is discussed in the ’4321’ model. Constraints
on the interactions of LQ and Higgs boson are obtained. We provide a method to
determine vacuum expectation values $upsilon_3$ and $upsilon_1$ of the new
scalar fields $Omega_3$ and $Omega_1$ in the ’4321’ model via the combination
of Higgs data and measurements of $R_{D^{(*)}}$ and $R_{K^{(*)}}$. | Source: | arXiv, 1905.4074 | Services: | Forum | Review | PDF | Favorites |
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