Vector boson production in hadronic collisions

Ellis, R. Keith; Ross, Douglas A.; Veseli, Siniša

doi:10.1016/s0550-3213(97)00403-3

Cited by 94 publications

(107 citation statements)

References 44 publications

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“…The two-loop QCD helicity amplitudes for the production of a Z or a W with a photon have also been calculated [33]. For small p T (p T m W , m Z ) the convergence of the fixed-order calculation is spoiled by the large logarithmic terms α n S log m (m 2 W /p 2 T ) that have to be resummed [34][35][36][37][38][39][40][41][42][43][44]. Finally, the rapidity distribution of a vector boson is known at the NNLO in QCD [45].…”

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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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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“…(iv) The distribution of the transverse momentum (p T ) of the W boson is a model input, which each experiment constrains individually by fitting the Z boson p T distribution. Phenomenological models such as that of Ellis, Ross, and Veseli [15] or that of Ladinsky and Yuan [16] are treated as empirical functions which, after folding in the detector response, adequately describe the observed p T Z distribution. The p T distribution is specified by model parameters along with QCD and the parton distribution functions (PDFs).…”

Section: A Uncorrelated Uncertaintiesmentioning

confidence: 99%

Combination of CDF and D0 results on theWboson mass and width

Abazov¹,

Abbott²,

Abdesselam³

et al. 2004

Phys. Rev. D

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The results based on 1992 -95 data (Run 1) from the CDF and D0 experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron collider average M W 80:456 0:059 GeV. We also report the Tevatron collider average of the directly measured W boson width ÿ W 2:115 0:105 GeV. We describe a new joint analysis of the direct W mass and width measurements. Assuming the validity of the standard model, we combine the directly measured W boson width with the width extracted from the ratio of W and Z boson leptonic partial cross sections. This combined result for the Tevatron is ÿ W 2:135 0:050 GeV. Finally, we use the measurements of the direct total W width and the leptonic branching ratio to extract the leptonic partial width ÿW ! e 224 13 MeV.

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“…The simple QCD predictions for the angular coefficients are: The angular distributions predicted by standard Monte Carlo generators such as PHYTIA [16], ResBos re-summation 3 [25][26][27] and Vector Boson Production and Decay in Hadron Collisions Resummation VBP 4 [28,29] for Z boson production at the Tevatron are well described by the above formulae.…”

Section: Appendix: Derivation Of the Perturbative Formula For The Angmentioning

confidence: 97%

A simple event weighting technique: optimizing the measurement of the forward-backward asymmetry of Drell-Yan dilepton and top-antitop pairs at hadron colliders

Bodek

2010

Eur. Phys. J. C

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We describe a simple technique for optimizing the extraction of the forward-backward asymmetry (A fb ) of Drell-Yan lepton pairs (e + e − , μ + μ − ) produced inpp and pp collisions at hadron colliders. The method employs simple event weights which are functions of the rapidity and | cos θ | decay angle of the lepton pair. It yields the best estimate of the acceptance corrected parton level (qq) forward backward asymmetry as a function of final state dilepton mass (M ). Typically, when compared to the simple count method, the technique reduces the statistical errors by 20% forpp, and 40% for pp collisions, respectively. The method is equivalent to using the maximum likelihood method, but is much easier to implement. The technique can be used to search for new high mass and large width Z' bosons which may be best detected through the observation of deviations from the Standard Model expectation for the forwardbackward asymmetry. The technique can also be applied in the extraction of the foward-backward asymmetry in the production of top-antitop pairs.

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Vector boson production in hadronic collisions

Cited by 94 publications

References 44 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

Combination of CDF and D0 results on theWboson mass and width

A simple event weighting technique: optimizing the measurement of the forward-backward asymmetry of Drell-Yan dilepton and top-antitop pairs at hadron colliders

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