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Cullen, Gina; Greiner, Norbert; Heinrich, Ginny; Luisoni, Gionata; Mastrolia, Pierpaolo

doi:10.5506/aphyspolb.42.2351

Cited by 24 publications

(30 citation statements)

References 69 publications

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“…For the computation of the virtual corrections we use a code generated by the program package GoSam [18], which combines automated diagram generation and algebraic manipulation [19][20][21][22] with integrand-level reduction techniques [23][24][25][26][27][28][29].…”

Section: Computational Setupmentioning

confidence: 99%

Next-to-Leading-Order QCD Corrections to Higgs Boson Production Plus Three Jets in Gluon Fusion

et al. 2013

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We report on the calculation of the cross section for Higgs boson production in association with three jets via gluon fusion, at next-to-leading-order (NLO) accuracy in QCD, in the infinite top-mass approximation. After including the complete NLO QCD corrections, we observe a strong reduction in the scale dependence of the result, and an increased steepness in the transverse momentum distributions of both the Higgs and the leading jets. The results are obtained with the combined use of GoSam, Sherpa, and the MadDipole/MadEvent framework.

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Section: Computational Setupmentioning

confidence: 99%

Next-to-Leading-Order QCD Corrections to Higgs Boson Production Plus Three Jets in Gluon Fusion

et al. 2013

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“…We have compared our results at the level of virtual matrix element squared with the results of the publicly available program GoSam [17]. Additionally, we find excellent agreement when comparing the undecayed crosssections to aMC@NLO [18,19] at both LO and NLO.…”

Section: B Next-to-leading Ordermentioning

confidence: 70%

Single top production in association with aZboson at the LHC

2013

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We present results for the production of a Z boson in association with single top at next-to-leading order (NLO), including the decay of the top quark and the Z boson. This electroweak process gives rise to the trilepton signature l + l − l ′ ± + jets + missing energy. We present results for this signature and show that the rate is competitive with the contribution of the mixed strong and electroweak production process, ttZ. As such it should be observable in the full data sample from LHC running at √ s = 8 TeV. The single top + Z process is a hitherto unconsidered irreducible background in searches for flavour changing neutral current decays of the top quark in tt production. For a selection of cuts used at the LHC involving a b-tag it is the dominant background. In an appendix we also briefly discuss the impact of NLO corrections on the related tH process.

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“…In this communication, we recall the main features of GOSAM [25], a code writer for the automated computation of one-loop amplitudes. GOSAM has been recently employed in several calculations at NLO QCD accuracy related to signal and backgrounds for Higgs boson production [26][27][28][29][30][31][32][33], as well as in the context of Beyond Standard Model (BSM) scenarios [34,35] and electroweak studies [36,37], and has been successfully interfaced with Monte Carlo programs to merge multiple NLO matrix elements with parton showers [38,39].…”

Section: Pos(radcor 2013)029mentioning

confidence: 99%