Constraining the Higgs couplings to up and down quarks using production kinematics at the CERN Large Hadron Collider

Abstract

We study the prospects for constraining the Higgs boson's couplings to up and down quarks using kinematic distributions in Higgs production at the CERN Large Hadron Collider. We find that the Higgs $p_T$ distribution can be used to constrain these couplings with precision competitive to other proposed techniques. With 3000 fb${}^{-1}$ of data at 13 TeV in the four-lepton decay channel, we find $-0.73\lesssim {\bar{\kappa }}_u\lesssim 0.33$ and $-0.88\lesssim {\bar{\kappa }}_d\lesssim 0.32$, where ${\bar{\kappa }}_q=(m_q/m_b){\kappa }_q$ is a scaling factor that modifies the $q$ quark Yukawa coupling relative to the Standard Model bottom quark Yukawa coupling. The sensitivity may be improved by including additional Higgs decay channels.

11 pages, 6 figures

References in corpus (10)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Herwig++ Physics and Manual
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• Search for the $b\bar{b}$ decay of the Standard Model Higgs boson in associated $(W/Z)H$ production with the ATLAS detector
• Higgs-dependent Yukawa couplings
• An Exclusive Window onto Higgs Yukawa Couplings
• Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method
• Higgs characterisation: NLO and parton-shower effects

Cited by in corpus (3)

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