One-loop weak corrections to γ/Z hadro-production at finite transverse momentum

Maina, Ezio; Moretti, Stefano; Ross, Douglas A.

doi:10.1016/j.physletb.2004.04.043

Cited by 26 publications

(18 citation statements)

References 46 publications

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“…[11,12]. Since there are no restrictions on the number of jets or charged leptons in isolated photon events, tree level O(α s α 2 ) V γj (V = W ± , Z) production should be included in the calculation.…”

Section: B Isolated Photon Productionmentioning

confidence: 99%

“…The blue curve shows R γj (p T (γ)) if only the O(α) virtual weak corrections [11,12] are taken into account. It has been obtained by incorporating the leading O(α) virtual weak corrections of Ref.…”

Section: B Isolated Photon Productionmentioning

confidence: 99%

“…For hadron colliders, the O(α) virtual weak corrections to inclusive jet [10], isolated photon [11,12], Z + 1 jet [12,13], Drell-Yan [14][15][16][17][18], diboson [19][20][21],tt [22][23][24][25], and single top production [26][27][28] have been calculated. In almost all calculations, weak boson emission diagrams have not been taken into account, although they contribute at the same order in perturbation theory as the one-loop corrections.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: B Isolated Photon Productionmentioning

confidence: 99%

Section: B Isolated Photon Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Weak boson emission in hadron collider processes

Baur

2007

Phys. Rev. D

102

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“…It should be noted that at high energies, the electroweak corrections from virtual weak boson exchange increase strongly. This fact motivated the calculation of the complete one-loop electroweak corrections to large-p T photon production in hadronic collisions [31,32]. Indeed it was found that at the LHC, where photon transverse momenta in the range of 2 TeV are within reach, these corrections amount to up to -17% [32].…”

Section: Prompt Photons In Hadronic Collisionsmentioning

confidence: 97%

Prompt Photon Production in photoproduction, DIS and hadronic collisions

Heinrich

2008

Nuclear Physics B - Proceedings Supplements

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“…Numerical results for the one-loop corrections to the latter two processes can be also found in Ref. [8]. In the following we briefly report on the calculations of the gauge boson (V ) production in association with a jet ( j) in the process p p (−) → V j, presented in Refs.…”

mentioning

confidence: 99%