Anomalous Higgs Couplings at the LHeC

Abstract

The discovery of Higgs boson plays a crucial role in understanding the electroweak symmetry breaking sector. From now on, solving the dynamics of this sector needs precision measurements of the couplings of the Higgs boson to the standard model particles. In this work, we investigate the constrains on the anomalous $HWW$ and $HWW\gamma$ couplings, described by the dimension-six operators in the effective Lagrangian, in a high energy envisaged ep collider which is called Large Hadron electron Collider (LHeC). We obtained the 95 % confidence level limits on the couplings of anomalous $HWW$ and $HWW\gamma$ vertex, with the design luminosity of 10 fb${}^{-1}$ and electron beam energy of 140 GeV, through $ep\to \nu H+X$, $\gamma p\to WH+X$ and $e\gamma \to WH\nu$ processes by considering the new physics energy scale to be $\Lambda$= 1 TeV. The sensitivity of the LHeC to the new physics scale is also briefly discussed.

11 pages, 11 figures, to appear in Nucl.Phys. B

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Cited by in corpus (9)

• The Large Hadron-Electron Collider at the HL-LHC
• Higgs-Boson Couplings Beyond the Standard Model
• Constraining top quark flavor violation and dipole moments through three and four top quark productions at the LHC
• Study of Higgs Effective Couplings at Electron-Proton Colliders
• Invisible Higgs Decay at the LHeC
• Exploring anomalous $HZ\gamma$ couplings in $\gamma$-proton collisions at the LHC
• Exotic Higgs Decay $h\to \varphi \varphi \to 4b$ at the LHeC
• Probing Anomalous HZZ Couplings at the LHeC
• Exploring non-standard $Hb\bar{b}$ interactions at future electron-proton colliders