Higgs spin determination in the WW channel and beyond

Frank, J.; Rauch, Michael; Zeppenfeld, D.

doi:10.1140/epjc/s10052-014-2918-z

Cited by 10 publications

(4 citation statements)

References 75 publications

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“…only use data in phase space regions which are not sensitive to the ultraviolet completions, for example requiring p T < 100 GeV for the tagging jets in weak boson fusion [124][125][126][127][128] or an upper bound on p V T in V H production. The obvious disadvantage of this approach is that we lose experimental information and produce worse bounds, as we will see.…”

Section: Kinematic Distributionsmentioning

confidence: 99%

The Higgs legacy of the LHC Run I

Corbett

Éboli

Gonçalves

et al. 2015

J. High Energ. Phys.

Self Cite

127

158

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Based on Run I data we present a comprehensive analysis of Higgs couplings. For the first time this SFitter analysis includes independent tests of the Higgs-gluon and top Yukawa couplings, Higgs decays to invisible particles, and off-shell Higgs measurements. The observed Higgs boson is fully consistent with the Standard Model, both in terms of coupling modifications and effective field theory. Based only on Higgs total rates the results using both approaches are essentially equivalent, with the exception of strong correlations in the parameter space induced by effective operators. These correlations can be controlled through additional experimental input, namely kinematic distributions. Including kinematic distributions the typical Run I reach for weakly interacting new physics now reaches 300 to 500 GeV.

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Section: Kinematic Distributionsmentioning

confidence: 99%

The Higgs legacy of the LHC Run I

Corbett

Éboli

Gonçalves

et al. 2015

J. High Energ. Phys.

Self Cite

127

158

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show abstract

“…Our implementation provides the first predictions for EFT interactions including NLO corrections in QCD interfaced with a parton shower. Many phenomenological studies on Higgs spin, parity and couplings are available in the literature [47,48,[82][83][84][85][86][87][88], which could now be upgraded to NLO+PS accuracy. In our framework the code and events for VBF can be automatically generated by issuing the following commands (note the $$ sign to forbid diagrams with W ± or Z bosons in the s-channel which are included in VH production):…”

Section: Vector Boson Fusionmentioning

confidence: 99%

Higgs characterisation via vector-boson fusion and associated production: NLO and parton-shower effects

2014

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Vector-boson fusion and associated production at the LHC can provide key information on the strength and structure of the Higgs couplings to the Standard Model particles. Using an effective field theory approach, we study the effects of next-to-leading order (NLO) QCD corrections matched to a parton shower on selected observables for various spin-0 hypotheses. We find that inclusion of NLO corrections is needed to reduce the theoretical uncertainties on the total rates as well as to reliably predict the shapes of the distributions. Our results are obtained in a fully automatic way via FeynRules and MadGraph5_aMC@NLO.

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“…The list of processes available within the spin-2 model, introduced in Refs. [15,16], has been extended. The model uses an effective Lagrangian to describe the interactions of spin-2 particles with electroweak gauge bosons.…”

Section: Spin-2 Modelmentioning

confidence: 99%

Release Note - VBFNLO 2.7.0

Baglio¹,

Bellm²,

F.³

et al. 2014

Preprint

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Vbfnlo is a flexible parton level Monte Carlo program for the simulation of vector boson fusion (VBF), double and triple vector boson (plus jet) production as well as QCD-induced single and double vector boson production plus two jets in hadronic collisions at next-to-leading order (NLO) in the strong coupling constant. Furthermore, Higgs boson plus two jet production via gluon fusion at the one-loop level is included. This note briefly describes the main additional features and processes that have been added in the new release -Vbfnlo Version 2.7.0.At NLO QCD several new processes are available. These are W ± γ and HH production in VBF, the QCD-induced single and double vector boson plus two jets processes W ± jj, W ± Zjj, W ± γjj, same-sign W ± W ± jj, and the Higgs-strahlung process W ± H (plus jet) production. Anomalous couplings are now available for all VBF, diboson and triboson (plus jet) processes including the new VBF W ± γjj implementation, as well as in the Higgs-strahlung (plus jet) process.Semi-leptonic decay modes are supported for the following diboson, triboson and VBF processes: V V , V V V , V V γ production and V V production via VBF, where V denotes a massive gauge boson, i.e. W ± or Z. Additionally, the VBF-Higgs production process with decay into W W or ZZ supports semi-leptonic decays of the gauge bosons. All these semi-leptonic processes contain the possibility to include anomalous gauge boson couplings.

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Higgs spin determination in the WW channel and beyond

Cited by 10 publications

References 75 publications

The Higgs legacy of the LHC Run I

The Higgs legacy of the LHC Run I

Higgs characterisation via vector-boson fusion and associated production: NLO and parton-shower effects

Release Note - VBFNLO 2.7.0

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