Electroweak radiative corrections to W and Z boson production in hadronic collisions

Baur, U.; Keller, S.; Wackeroth, D.; Sakumoto, W. K.

doi:10.2172/405747

Cited by 34 publications

(51 citation statements)

References 35 publications

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“…They are implemented in flexible NLO Monte Carlo programs [46][47][48][49][50][51][52], and merged with QCD parton shower [53][54][55][56] in the MC@NLO [57] and POWHEG [58] frameworks.…”

Section: Jhep09(2016)091mentioning

confidence: 99%

Two-loop master integrals for the mixed EW-QCD virtual corrections to Drell-Yan scattering

Bonciani

Vita

Mastrolia

et al. 2016

J. High Energ. Phys.

105

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We present the calculation of the master integrals needed for the two-loop QCD×EW corrections to q +q → l − + l + and q +q → l − + ν , for massless external particles. We treat the W and Z bosons as degenerate in mass. We identify three types of diagrams, according to the presence of massive internal lines: the no-mass type, the onemass type, and the two-mass type, where all massive propagators, when occurring, contain the same mass value. We find a basis of 49 master integrals and evaluate them with the method of the differential equations. The Magnus exponential is employed to choose a set of master integrals that obeys a canonical system of differential equations. Boundary conditions are found either by matching the solutions onto simpler integrals in special kinematic configurations, or by requiring the regularity of the solution at pseudothresholds. The canonical master integrals are finally given as Taylor series around d = 4 spacetime dimensions, up to order four, with coefficients given in terms of iterated integrals, respectively up to weight four.

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“…They are implemented in flexible NLO Monte Carlo programs [46][47][48][49][50][51][52], and merged with QCD parton shower [53][54][55][56] in the MC@NLO [57] and POWHEG [58] frameworks.…”

Section: Jhep09(2016)091mentioning

confidence: 99%

Two-loop master integrals for the mixed EW-QCD virtual corrections to Drell-Yan scattering

Bonciani

Vita

Mastrolia

et al. 2016

J. High Energ. Phys.

105

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“…High mass W * production is sensitive to α 2 (Q), and can be isolated using the shape of the transverse mass spectrum, since M W * ≥ M T . The Drell-Yan cross sections are under excellent theoretical control: the cross section has been computed to NNLO in QCD [16][17][18][19][20][21][22] and NLO in EW for Z/γ * [23][24][25][26][27][28] and W * [29][30][31][32][33][34]. As we will see, the scale and PDF uncertainties are of order 1% in the phase space region of interest.…”

Section: Jhep02(2015)007mentioning

confidence: 99%

“…[23][24][25][26][27][28] and refs. [29][30][31][32][33][34]) respectively, and PDFs have been fit through NNLO. Although the QCD corrections have been computed to higher order, and have larger scale uncertainties, in the high-mass regime of the cross section the EW corrections can make numerically important contributions from EW Sudakov logarithms and photon-initiated production of + − .…”

Section: Theory Predictionsmentioning

confidence: 99%

Running electroweak couplings as a probe of new physics

Alves

Galloway

Ruderman

et al. 2015

J. High Energ. Phys.

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Abstract:The energy dependence of the electroweak gauge couplings has not been measured above the weak scale. We propose that percent-level measurements of the energy dependence of α 1,2 can be performed now at the LHC and at future higher energy hadron colliders. These measurements can be used to set limits on new particles with electroweak quantum numbers without relying on any assumptions about their decay properties. The shape of the high invariant mass spectrum of Drell-Yan, pp → Z * /γ * → + − , constrains α 1,2 (Q), and the shape of the high transverse mass distribution of pp → W * → ν constrains α 2 (Q). We use existing data to perform the first fits to α 1,2 above the weak scale. Percent-level measurements are possible because of high precision in theoretical predictions and existing experimental measurements. We show that the LHC already has the reach to improve upon electroweak precision tests for new particles that dominantly couple through their electroweak charges. The 14 TeV LHC is sensitive to the predicted Standard Model (SM) running of α 2 , and can show that α 2 decreases with energy at 2-3σ significance. A future 100 TeV proton-proton collider will have significant reach to measure running weak couplings, with sensitivity to the SM running of α 2 at 4-5σ and sensitivity to winos with masses up to ∼ 1.3 TeV at 2σ.

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“…The WGRAD/ZGRAD [18] and PHOTOS [19] models are used in the different measurements and yield results consistent within the statistical uncertainties. We assume that the effects of radiative corrections are 100% correlated between all measurements because the models used are very similar.…”

Section: Introductionmentioning

confidence: 77%

Combination of CDF and D0 Results on the Width of the W boson

2010

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Electroweak radiative corrections to W and Z boson production in hadronic collisions

Abstract: Some results of a calculation of electroweak radiative corrections to W and Z boson production in hadronic collisions are presented.a Talk given by U

Cited by 34 publications

References 35 publications

Two-loop master integrals for the mixed EW-QCD virtual corrections to Drell-Yan scattering

Two-loop master integrals for the mixed EW-QCD virtual corrections to Drell-Yan scattering

Running electroweak couplings as a probe of new physics

Combination of CDF and D0 Results on the Width of the W boson

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