Effective<i>K</i>-factors for gg   H   WW         at the LHC

Davatz, G.; Dissertori, G.; Dittmar, M.; Grazzini, Massimiliano; Pauß, F.

doi:10.1088/1126-6708/2004/05/009

Cited by 47 publications

(70 citation statements)

References 23 publications

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“…Various further cuts have been proposed for the experimental Higgs searches to enhance the signal-tobackground ratio [11,12,[44][45][46][47]. As in our previous publication [20] we have studied a set of cuts similar to those advocated in a recent experimental study [47]. In addition to the "standard cuts" defined above, we require that the opening angle between the two charged leptons in the plane transverse to the beam direction should satisfy ∆φ T,ℓℓ < 45 • and that the dilepton invariant mass M ℓℓ be less than 35 GeV.…”

Section: Resultsmentioning

confidence: 99%

Gluon-inducedW-boson pair production at the LHC

Binoth¹,

Ciccolini²,

Kauer³

et al. 2006

J. High Energy Phys.

187

226

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Pair production of W bosons constitutes an important background to Higgs boson and new physics searches at the Large Hadron Collider LHC. We have calculated the loop-induced gluon-fusion process gg → W * W * → leptons, including intermediate light and heavy quarks and allowing for arbitrary invariant masses of the W bosons. While formally of next-to-next-to-leading order, the gg → W * W * → leptons process is enhanced by the large gluon flux at the LHC and by experimental Higgs search cuts, and increases the next-to-leading order W W background estimate for Higgs searches by about 30%. We have extended our previous calculation to include the contribution from the intermediate topbottom massive quark loop and the Higgs signal process. We provide updated results for cross sections and differential distributions and study the interference between the different gluon scattering contributions. We describe important analytical and numerical aspects of our calculation and present the public GG2WW event generator.

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Section: Resultsmentioning

confidence: 99%

Gluon-inducedW-boson pair production at the LHC

Binoth¹,

Ciccolini²,

Kauer³

et al. 2006

J. High Energy Phys.

187

226

View full text Add to dashboard Cite

show abstract

“…For the purpose of this paper we apply the selection criteria used in Ref. [10]. The proposed analysis proceeds in two steps.…”

Section: Selection Of Higgs Signal Eventsmentioning

confidence: 99%

“…For this study we use the reweighting method, described in Ref. [10], which allows to approximate higher order QCD corrections to the Higgs p T spectrum. A similar study was performed in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of a cross section and mass measurement of a standard model Higgs boson in thegg→H→WW→ℓνℓνchannel at the CERN LHC

2007

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The potential to discover a Standard-Model-like Higgs boson at the LHC in the mass range from 150-180 GeV, decaying into a pair of W bosons with subsequent leptonic decays, has been established during the last 10 years. Assuming that such a signal will eventually be observed, the analysis described in this paper investigates how accurate the signal cross section can be measured and how the observable lepton p T spectra can be used to constrain the mass of the Higgs boson. Combining the signal cross section with the analysis of the lepton p T spectra and assuming the SM Higgs cross section is known with an accuracy of ± 5%, our study indicates that an integrated luminosity of about 10 fb −1 allows to measure the mass of a SM Higgs boson with an accuracy between 2 and 2.5 GeV.2

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Higgs production with a central jet veto at NNLL+NNLO

Berger

Marcantonini

Stewart

et al. 2011

J. High Energ. Phys.

198

327

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Using methods of effective field theory, we derive the first all-order factorization theorem for the Higgs-boson production cross section with a jet veto, imposed by means of a standard sequential recombination jet algorithm. Like in the case of small-q T resummation in Drell-Yan and Higgs production, the factorization is affected by a collinear anomaly. Our analysis provides the basis for a systematic resummation of large logarithms ln(m H /p veto T) beyond leading-logarithmic order. Specifically, we present predictions for the resummed jet-veto cross section and efficiency at next-to-next-to-leading logarithmic order. Our results have important implications for Higgs-boson searches at the LHC, where a jet veto is required to suppress background events.

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EffectiveK-factors for gg H WW at the LHC

Cited by 47 publications

References 23 publications

Gluon-inducedW-boson pair production at the LHC

Gluon-inducedW-boson pair production at the LHC

Simulation of a cross section and mass measurement of a standard model Higgs boson in thegg→H→WW→ℓνℓνchannel at the CERN LHC

Higgs production with a central jet veto at NNLL+NNLO

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