Complete Higgs sector constraints on dimension-6 operators
By John Ellis, Veronica Sanz, T. You. 2014
210 citations recorded by the source corpus.
A bstractConstraints on the full set of Standard Model dimension-6 operators have previously used triple-gauge couplings to complement the constraints obtainable from Higgs signal strengths. Here we extend previous analyses of the Higgs sector constraints by including information from the associated production of Higgs and massive vector bosons (H+V production), which excludes a direction of limited sensitivity allowed by partial cancellations in the triple-gauge sector measured at LEP. Kinematic distributions in H+V production provide improved sensitivity to dimension-6 operators, as we illustrate here with simulations of the invariant mass and pT distributions measured by D0 and ATLAS, respectively. We provide bounds from a global fit to a complete set of CP-conserving operators affecting Higgs physics.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/81839a08e00355e92f6daae1f1dd33f152d513b9
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In Nuclear and High Energy Physics
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- Gudrun Heinrich
- Fabio Maltoni
- M. Schönherr
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- F. Krauss
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Citations in the corpus
- The effective Standard Model after LHC Run I (2014, methodology): “In previous work [89] we used LHC measurements of Higgs signal strengths together with differential distributions in Higgs associated production measurements by ATLAS and D0 to constrain all the dimension-6 operators affecting Higgs physics.”
- A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector (2019, unknown): “In this context, the wealth of precision measurements presented by the LHC collaborations in recent years, together with the significant progress in the corresponding theoretical calculations and modelling of collider processes, has motivated many groups to pursue (partial) SMEFT analyses of the LHC”
- Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “In this note, after reviewing the SMEFT framework and our previous results [749, 750, 751, 752], we present projections for the prospective sensitivities of measurements with the approved High-Luminosity LHC (HL-LHC) project and the proposed High-Energy LHC (HE-LHC) project to Wilson coefficients.”
- Model-independent precision constraints on dimension-6 operators (2014, background): “Much of recent work has been focused on connecting these operators to observables that can be measured in colliders, and to derive experimental constraints on their coefficients [5–16].”
- Mass effects in the Higgs-gluon coupling: boosted vs. off-shell production (2014, background): “This is obvious when we look at our currently very limited and model-dependent understanding of the top Yukawa coupling [8–24].”