Third order fiducial predictions for Drell-Yan at the LHC

Chen, X.; Gehrmann, T.; Glover, E. W. N.; Huss, A.; Monni, P.; Re, E.; Rottoli, L.; Torrielli, P.

doi:10.48550/arxiv.2203.01565

Cited by 6 publications

(6 citation statements)

References 115 publications

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“…Our calculation is based on the G µ scheme with the following EW parameters: M Z = 91.1876 GeV, Γ Z = 2.4952 GeV, G F = 1.1663787 × 10 −5 GeV −2 [53], and a diagonal CKM ma- Ratio to NNLO Ratio to NNLO While the NLO and NNLO scale variation bands overlap, the N 3 LO prediction is found to be non-overlapping with the previous order within the respective scale uncertainties. This feature at N 3 LO has already been observed for the total cross sections for neutral current [56,57] and charged-current [13] Drell-Yan production and for the neutral-current Drell-Yan rapidity distribution [33] and fiducial cross sections [58]. The relative size of scale variation remains comparable at NNLO and N 3 LO at about ±1% for central rapidity and slightly increasing at large rapidity.…”

Section: Resultssupporting

confidence: 69%

Transverse Mass Distribution and Charge Asymmetry in W Boson Production to Third Order in QCD

Chen¹,

Gehrmann²,

Glover³

et al. 2022

Preprint

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Charged gauge boson production at hadron colliders is a fundamental benchmark for the extraction of electroweak parameters and the understanding of the proton structure. To enable precision phenomenology for this process, we compute the third-order (N 3 LO) QCD corrections to the rapidity distribution and charge asymmetry in W boson production and to the transverse mass distribution of its decay products. Our results display substantial QCD corrections in kinematic regions relevant for LHC measurements. We compare the numerical magnitude of the N 3 LO corrections with uncertainties from electroweak input parameters and quantify their potential impact on the determination of the W boson mass.

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Section: Resultssupporting

confidence: 69%

Transverse Mass Distribution and Charge Asymmetry in W Boson Production to Third Order in QCD

Chen¹,

Gehrmann²,

Glover³

et al. 2022

Preprint

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“…At this perturbative order, both inclusive and fully-differential results are available [16][17][18][19][20][21][22][23]. Very recently, N 3 LO QCD corrections to DY processes were calculated [24][25][26][27][28][29] and found to be close to a percent, motivating their inclusion at this level of precision. In addition to QCD corrections, electroweak (EW) contributions also need to be accounted for to achieve percent-level precision.…”

Section: Introductionmentioning

confidence: 99%

Mixed QCD-electroweak corrections to dilepton production at the LHC in the high invariant mass region

Buccioni

Caola

Chawdhry

et al. 2022

J. High Energ. Phys.

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We compute mixed QCD-electroweak corrections to the neutral-current Drell-Yan production of a pair of massless leptons in the high invariant mass region. Our computation is fully differential with respect to the final state particles. At relatively low values of the dilepton invariant mass, mℓℓ ∼ 200 GeV, we find unexpectedly large mixed QCD-electroweak corrections at the level of −1%. At higher invariant masses, mℓℓ ∼ 1 TeV, we observe that these corrections can be well approximated by the product of QCD and electroweak corrections. Hence, thanks to the well-known Sudakov enhancement of the latter, they increase at large invariant mass and reach e.g. −3% at mℓℓ = 3 TeV. Finally, we note that the inclusion of mixed corrections reduces the theoretical uncertainty related to the choice of electroweak input parameters to below the percent level.

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“…This includes the calculation of some two-loop amplitudes that are currently not available, as well as reaching the level of automation, in terms of overall assembly and ease of use, that has already been achieved at NLO. For a few select processes, N 3 LO precision has been achieved [76][77][78]; an appraisal of the prospects for reaching this level of precision more broadly is given in Ref. [79].…”

Section: Fixed-order Perturbation Theorymentioning

confidence: 99%