NLO electroweak corrections to Higgs boson production at hadron colliders

Actis, Stefano; Passarino, Giampiero; Sturm, Christian; Uccirati, Sandro

doi:10.1016/j.physletb.2008.10.018

Cited by 328 publications

(285 citation statements)

References 38 publications

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“…The electroweak corrections are known exactly up to NLO [49][50][51][52][53] and contribute at the 1 The QCD corrections to gg → H at √ s = 7 TeV are thus smaller than the corresponding ones at the Tevatron as the K-factors in this case are KNLO ≈ 2 and KNNLO ≈ 3 (with a central scale equal to MH ). At the LHC with √ s = 14 TeV, the K-factors are even smaller, KNLO ≈ 1.7 and KNNLO ≈ 2.…”

Section: The Higgs Production Cross Sectionsmentioning

confidence: 96%

Higgs production at the lHC

Baglio

Djouadi

2011

J. High Energ. Phys.

172

194

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Abstract:We analyze the production of Higgs particles at the early stage of the CERN large Hadron Collider with a 7 TeV center of mass energy (lHC). We first consider the case of the Standard Model Higgs boson that is mainly produced in the gluon-gluon fusion channel and to be detected in its decays into electroweak gauge bosons, gg → H → W W, ZZ, γγ. The production cross sections at √ s = 7 TeV and the decay branching ratios, including all relevant higher order QCD and electroweak corrections, are evaluated. An emphasis is put on the various theoretical uncertainties that affect the production rates: the significant uncertainties from scale variation and from the parametrization of the parton distribution functions as well as the uncertainties which arise due to the use of an effective field theory in the calculation of the next-to-next-to-leading order corrections. The parametric uncertainties stemming from the values of the strong coupling constant and the heavy quark masses in the Higgs decay branching ratios, which turn out to be non-negligible, are also discussed. The implications for different center of mass energies of the proton collider, √ s = 8-10 TeV as well as for the design energy √ s = 14 TeV, are briefly summarized. We then discuss the production of the neutral Higgs particles of the Minimal Supersymmetric extension of the Standard Model in the two main channels: gluon-gluon and bottom quark fusion leading to Higgs bosons which subsequently decay into tau lepton or b-quark pairs, gg, bb → Higgs → τ + τ − , bb. The Higgs production cross sections at the lHC and the decay branching ratios are analyzed. The associated theoretical uncertainties are found to be rather large and will have a significant impact on the parameter space of the model that can be probed.

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Section: The Higgs Production Cross Sectionsmentioning

confidence: 96%

Higgs production at the lHC

Baglio

Djouadi

2011

J. High Energ. Phys.

172

194

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“…Nevertheless, one expects that they are similar in size to those affecting the single Higgs production case, which are at the few percent level at the presently planned LHC c.m. energies [67][68][69][70][71][72][73][74][75][76] (see also ref. [77] for a review).…”

Section: Jhep04(2013)151mentioning

confidence: 99%

The measurement of the Higgs self-coupling at the LHC: theoretical status

Baglio

Djouadi

Gröber

et al. 2013

J. High Energ. Phys.

317

407

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Now that the Higgs boson has been observed by the ATLAS and CMS experiments at the LHC, the next important step would be to measure accurately its properties to establish the details of the electroweak symmetry breaking mechanism. Among the measurements which need to be performed, the determination of the Higgs self-coupling in processes where the Higgs boson is produced in pairs is of utmost importance. In this paper, we discuss the various processes which allow for the measurement of the trilinear Higgs coupling: double Higgs production in gluon fusion, vector boson fusion, double Higgs-strahlung and associated production with a top quark pair. We first evaluate the production cross sections for these processes at the LHC with center-of-mass energies ranging from the present √ s = 8 TeV to √ s = 100 TeV, and discuss their sensitivity to the trilinear Higgs coupling. We include the various higher order QCD radiative corrections, at next-to-leading order for gluon and vector boson fusion and at next-to-next-to-leading order for associated double Higgs production with a gauge boson. The theoretical uncertainties on these cross sections are estimated. Finally, we discuss the various channels which could allow for the detection of the double Higgs production signal at the LHC and estimate their potential to probe the trilinear Higgs coupling.

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“…Resummation of the soft QCD radiation has been performed to NNLL [72] in the m t → ∞ approximation and to the next-to-leading logarithms (NLL) for finite topand bottom-quark masses. Electroweak corrections to NLO [73] are applied using the complete factorization approximation [74]. Together, these calculations provide the total inclusive cross section for the ggF process [75], which is 19.15 pb for m H ¼ 125.36 GeV.…”

Section: A Gluon Fusionmentioning

confidence: 99%

Observation and measurement of Higgs boson decays toWW*with the ATLAS detector

Aad¹,

Albrand²,

Brown³

et al. 2015

Phys. Rev. D

200

225

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We report the observation of Higgs boson decays to WW Ã based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb −1 from ffiffi ffi s p ¼ 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09 þ0.

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NLO electroweak corrections to Higgs boson production at hadron colliders

Cited by 328 publications

References 38 publications

Higgs production at the lHC

Higgs production at the lHC

The measurement of the Higgs self-coupling at the LHC: theoretical status

Observation and measurement of Higgs boson decays toWW*with the ATLAS detector

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