Next-to-next-to-leading electroweak logarithms in W-pair production at ILC

Kühn, Johann H.; Metzler, F.; Penin, Alexander A.

doi:10.1016/j.nuclphysb.2007.11.019

Cited by 22 publications

(6 citation statements)

References 47 publications

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“…To the leading order of the small-mass expansion these are renowned "Sudakov" logarithms which have been extensively studied since the pionering work [29]. The structure of the Sudakov logarithms in the theories with massive fermions and gauge bosons is by now well understood [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48]. The characteristic feature of the gg → H amplitude however is that it vanishes in the limit of the massless quark m q → 0 i.e.…”

Section: General Structure Of the Leading And Next-to-leading Logarithmsmentioning

confidence: 99%

Light quark mediated Higgs boson threshold production in the next-to-leading logarithmic approximation

Anastasiou

Penin

2020

J. High Energ. Phys.

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We study the amplitude of the Higgs boson production in gluon fusion mediated by a light quark loop and evaluate the logarithmically enhanced radiative corrections to the next-to-leading logarithmic approximation which sums up the terms of the form α n s ln 2n−1 (m H /m q) to all orders in the strong coupling constant. This result is used for the calculation of the process cross section near the production threshold and gives a quantitative estimate of the three and four-loop bottom quark contribution to the Higgs boson production at the Large Hadron Collider.

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Section: General Structure Of the Leading And Next-to-leading Logarithmsmentioning

confidence: 99%

Light quark mediated Higgs boson threshold production in the next-to-leading logarithmic approximation

Anastasiou

Penin

2020

J. High Energ. Phys.

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“…Starting with the N 3 LL approximation, the corrections become sensitive to the details of the gauge-boson mass generation [533]. This method has been applied to sum the EW logarithms to the vector form factor and neutral-current 4-fermion amplitudes at the NLL [521], N 2 LL [536], and N 3 LL level [533], and for W-pair production at the ILC and LHC at the N 2 LL level [568,569]. Various explicit two-loop calculations have been performed to verify the resummation of the subleading logarithms [532,535,537].…”

Section: Resummation Of Ew Double-logarithmic Correctionsmentioning

confidence: 99%

Electroweak Radiative Corrections for Collider Physics

Denner,

Dittmaier

2019

Preprint

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Current particle phenomenology is characterized by the spectacular agreement of the predictions of the Standard Model of particle physics (SM) with all results from collider experiments and by the absence of significant signals of non-standard physics, despite the fact that we know that the SM cannot be the ultimate theory of nature. In this situation, confronting theory and experiment with high precision is a promising direction to look for potential traces of physics beyond the SM. On the theory side, the calculation of radiative corrections of the strong and electroweak interactions is at the heart of this task, a field that has seen tremendous conceptual and technical progress in the last decades. This review aims at a coherent introduction to the field of electroweak corrections and tries to fill gaps in the literature between standard textbook knowledge and the current state of the art. The SM and the machinery for its perturbative evaluation are reviewed in detail, putting particular emphasis on renormalization, on one-loop techniques, on modern amplitude methods and tools, on the separation of infrared singularities in real-emission corrections, on electroweak issues connected with hadronic initial or final states in collisions, and on the issue of unstable particles in quantum field theory together with corresponding practical solutions.

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“…This line of research was motivated by the necessity of including at least the dominant two-loop terms, once one-loop corrections exceed the 20 − 30% level. Using evolution equations, originally derived in the context of QED [20][21][22][23] and QCD, fourfermion processes have been studied up to N 4 LL [7,[13][14][15][16], W-pair production in electronpositron and quark-antiquark annihilation up to N 3 LL [24,25]. Employing diagrammatic methods or the framework of soft-collinear effective field theory most of these results were confirmed in the NLL and NNLL approximation [10,12,18,26].…”

Section: Introductionmentioning

confidence: 96%

Electroweak corrections to W-boson pair production at the LHC

Bierweiler¹,

Kasprzik²,

Kühn³

et al. 2012

J. High Energ. Phys.

100

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Vector-boson pair production ranks among the most important StandardModel benchmark processes at the LHC, not only in view of on-going Higgs analyses. These processes may also help to gain a deeper understanding of the electroweak interaction in general, and to test the validity of the Standard Model at highest energies. In this work, the first calculation of the full one-loop electroweak corrections to on-shell W-boson pair production at hadron colliders is presented. We discuss the impact of the corrections on the total cross section as well as on relevant differential distributions. We observe that corrections due to photon-induced channels can be amazingly large at energies accessible at the LHC, while radiation of additional massive vector bosons does not influence the results significantly. SFB/CPP

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Next-to-next-to-leading electroweak logarithms in W-pair production at ILC

Cited by 22 publications

References 47 publications

Light quark mediated Higgs boson threshold production in the next-to-leading logarithmic approximation

Light quark mediated Higgs boson threshold production in the next-to-leading logarithmic approximation

Electroweak Radiative Corrections for Collider Physics

Electroweak corrections to W-boson pair production at the LHC

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