Sudakov effects in electroweak corrections

Ciafaloni, Paolo; Comelli, Denis

doi:10.1016/s0370-2693(98)01541-x

Cited by 176 publications

(196 citation statements)

References 4 publications

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“…Naturally in such approximation our results absolutely coincide with the results of this paper (see formula (8) in paper [9]). However we are in position to save the first and zero power of expansion leading-log parameter and we will seize this opportunity to improve the accuracy of radiative correction estimation (one more remarkwe retain the l 1 i,x and l 0 i,x also in heavy vertices part, of course).…”

Section: Heavy Boxessupporting

confidence: 90%

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Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Zykunov

2007

Phys. Rev. D

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The weak radiative corrections to Drell-Yan process above the Z-peak have been studied. The compact asymptotic expression for the two heavy boson exchange -one of significant contributions to the investigated process -has been obtained. The results expand in the powers of the Sudakov electroweak logarithms. The numerical analysis in the high energy region is performed. To simulate the detector acceptance we used the standard CMS cuts. It has been ascertained that the considered radiative corrections become large at high di-lepton mass M and increase the di-lepton mass distribution up to ∼ 8% and the forward-backward asymmetry up to ∼ 1.4% at LHC energies and M ≥ 1 TeV. The results can be used for the necessities of future LHC experiments. * Electronic address: zykunov@gstu.gomel.by, Uladzimir.Zykunou@cern.ch

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Section: Heavy Boxessupporting

confidence: 90%

“…Surely in these (and subsequent) expressions we can retain only leading ∼ l 2 i,x term how it had been done in [9]. Naturally in such approximation our results absolutely coincide with the results of this paper (see formula (8) in paper [9]).…”

Section: Heavy Boxessupporting

confidence: 82%

Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Zykunov

2007

Phys. Rev. D

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“…One major effect of the EW correction comes from photon radiation from the final-state leptons, which can lead to large logarithmic corrections sensitive to the lepton mass or calorimeter setting. The weak correction in the high-energy Sudakov regime [21][22][23][24] can also cause a significant deviation from the leading order contribution.…”

Section: Introductionmentioning

confidence: 99%

Combining QCD and electroweak corrections to dilepton production in the framework of the FEWZ simulation code

2012

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We combine the next-to-next-to-leading order (NNLO) QCD corrections to lepton-pair production through the Drell-Yan mechanism with the next-to-leading order (NLO) electroweak corrections within the framework of the FEWZ simulation code. Control over both sources of higher-order contributions is necessary for measurements where percent-level theoretical predictions are crucial, and in phase-space regions where the NLO electroweak corrections grow large. The inclusion of both corrections in a single simulation code eliminates the need to separately incorporate such effects as final-state radiation and electroweak Sudakov logarithms when comparing many experimental results to theory. We recalculate the NLO electroweak corrections in the complex-mass scheme for both massless and massive final-state leptons, and modify the QCD corrections in the original FEWZ code to maintain consistency with the complex-mass scheme to the lowest order. We present phenomenological results for LHC studies that include both NNLO QCD and NLO electroweak corrections. In addition, we study several interesting kinematics features induced by experimental cuts in the distribution of photon radiation at the LHC. *

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“…The source of the Sudakov-like logarithms is well understood [1][2][3][4][5][6]. They originate from collinear and infrared divergences which would be present in the limit of vanishing W and Z masses.…”

Section: Introductionmentioning

confidence: 99%

Weak boson emission in hadron collider processes

Baur

2007

Phys. Rev. D

102

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The O(α) virtual weak radiative corrections to many hadron collider processes are known to become large and negative at high energies, due to the appearance of Sudakov-like logarithms. At the same order in perturbation theory, weak boson emission diagrams contribute. Since the W and Z bosons are massive, the O(α) virtual weak radiative corrections and the contributions from weak boson emission are separately finite. Thus, unlike in QED or QCD calculations, there is no technical reason for including gauge boson emission diagrams in calculations of electroweak radiative corrections. In most calculations of the O(α) electroweak radiative corrections, weak boson emission diagrams are therefore not taken into account. Another reason for not including these diagrams is that they lead to final states which differ from that of the original process. However, in experiment, one usually considers partially inclusive final states. Weak boson emission diagrams thus should be included in calculations of electroweak radiative corrections. In this paper, I examine the role of weak boson emission in those processes at the Fermilab Tevatron and the CERN LHC for which the one-loop electroweak radiative corrections are known to become large at high energies (inclusive jet, isolated photon, Z + 1 jet, Drell-Yan, di-boson,tt, and single top production). In general, I find that the cross section for weak boson emission is substantial at high energies and that weak boson emission and the O(α) virtual weak radiative corrections partially cancel. *

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Sudakov effects in electroweak corrections

Cited by 176 publications

References 4 publications

Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair

Combining QCD and electroweak corrections to dilepton production in the framework of the FEWZ simulation code

Weak boson emission in hadron collider processes

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