Precision diboson observables for the LHC

Frye, Christopher; Freytsis, Marat; Scholtz, Jakub; Strassler, Matthew J.

doi:10.1007/jhep03(2016)171

Cited by 15 publications

(21 citation statements)

References 106 publications

(211 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…E. 2 of Ref. [41]. 4 We note that these parameters are slightly different to those used in previous MCFM studies of photonic processes at NNLO [19,46].…”

Section: Event Selectionmentioning

confidence: 96%

Driving missing data at the LHC: NNLO predictions for the ratio ofγ+jandZ+j

2017

View full text Add to dashboard Cite

The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Driving missing data at the LHC: NNLO predictions for the ratio of γ + j and Z + j In this paper, we present a calculation of the γ þ j process at next-to-next-to-leading order (NNLO) in QCD and compare the resulting predictions to 8 TeV CMS data. We find good agreement with the shape of the photon p T spectrum, particularly after the inclusion of additional electroweak corrections, but there is a tension between the overall normalization of the theoretical prediction and the measurement. We use our results to compute the ratio of Zð→l þ l − Þ þ j to γ þ j events as a function of the vector boson transverse momentum at NNLO, a quantity that is used to normalize Zð→ννÞ þ j backgrounds in searches for dark matter and supersymmetry. Our NNLO calculation significantly reduces the theoretical uncertainty on this ratio, thus boosting its power for future searches of new physics.

show abstract

“…E. 2 of Ref. [41]. 4 We note that these parameters are slightly different to those used in previous MCFM studies of photonic processes at NNLO [19,46].…”

Section: Event Selectionmentioning

confidence: 96%

Driving missing data at the LHC: NNLO predictions for the ratio ofγ+jandZ+j

2017

View full text Add to dashboard Cite

show abstract

“…Ratios of diboson production rates have been proposed (Frye et al, 2016) that could enable precision tests of the theoretical predictions, potentially to the level of being sensitive to electroweak corrections.…”

Section: Sensitivity Prospects At the Hl-lhcmentioning

confidence: 99%

Multiboson interactions at the LHC

2017

View full text Add to dashboard Cite

In addition, data on electroweak triple gauge boson production and 2-to-2 vector boson scattering (VBS) yield limits on anomalous quartic gauge boson couplings (aQGCs). The LHC hosts two general purpose experiments, ATLAS and CMS, which both have reported limits on aTGCs and aQGCs which are herein summarized. The interpretation of these limits in terms of an effective field theory (EFT) is reviewed, and recommendations are made for testing other types of new physics using multi-gauge boson production. CONTENTS

show abstract

“…Accordingly, we use the N f = 4 sets of the NNPDF31 [101] parton distribution functions (PDFs) and choose the corresponding set for each perturbative order. 6 The loop-induced gluon fusion contribution and also its NLO corrections are always computed 3 OpenLoops 2 relies on its new on-the-fly tensor reduction [79] that guarantees numerical stability in the entire phase space, especially in the IR-singular regions. Within OpenLoops 2 scalar integrals from Collier [80] and OneLOop [81] are used.…”

mentioning

confidence: 99%

“…[70]. 6 At LO there is no N f = 4 NNPDF31 PDF set available, so we use the corresponding NNPDF30 set [102]. with NNLO PDFs due to the lack of N 3 LO PDF sets.…”

mentioning

confidence: 99%

See 1 more Smart Citation

W+W− production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel

et al. 2020

View full text Add to dashboard Cite

We compute the NLO QCD corrections to the loop-induced gluon fusion contribution in W + W − production at the LHC. We consider the full leptonic process pp → + − ν ν + X, by including resonant and non-resonant diagrams, spin correlations and off-shell effects. Quark-gluon partonic channels are included for the first time in the calculation, and our results are combined with NNLO predictions to the quark annihilation channel at the fully differential level. The computed corrections, which are formally of O(α 3 S ), increase the NNLO cross section by only about 2%, but have an impact on the shapes of kinematical distributions, in part due to the jet veto, which is usually applied to reduce the top-quark background. Our results, supplemented with NLO EW effects, provide the most advanced fixed-order predictions available to date for this process, and are compared with differential ATLAS data at √ s = 13 TeV.

show abstract

Precision diboson observables for the LHC

Cited by 15 publications

References 106 publications

Driving missing data at the LHC: NNLO predictions for the ratio ofγ+jandZ+j

Driving missing data at the LHC: NNLO predictions for the ratio ofγ+jandZ+j

Multiboson interactions at the LHC

W+W− production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel

Contact Info

Product

Resources

About