New insights into the perturbative structure of electroweak Sudakov logarithms

Beenakker, W.; Werthenbach, A.

doi:10.1016/s0370-2693(00)00900-x

Cited by 53 publications

(67 citation statements)

References 13 publications

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“…However, this approach is only justified for energies of order M W or M Z . As is well known from earlier investigations [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], EW corrections increase with the squared logarithm of the energy, and may reach several tens of percent for energies accessible at the LHC. In view of their strong dependence both on energy and scattering angle, they will induce significant distortions in transverse-momentum and rapidity distributions and consequently may well mimic "New Physics" and hence must be carefully taken into account.…”

Section: Introductionsupporting

confidence: 56%

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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Section: Introductionsupporting

confidence: 56%

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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show abstract

“…(14) therefore correspond precisely to matching terms in analogy to the situation for the universal SL logarithms [6,7]. Thus, if L symm is a valid effective theory at high energies in the sense that it contains all relevant physical degrees of freedom 4 , then matching at the scale M must yield the corresponding soft QED terms since these are fixed by the real QED corrections and their higher order behavior.…”

Section: Angular Dependent Corrections In the Effective Theorymentioning

confidence: 92%

Resummation of angular dependent corrections in spontaneously broken gauge theories

Melles¹

2002

Eur. Phys. J. C

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Recent investigations of electroweak radiative corrections have revealed the importance of higher order contributions in high energy processes, where the size of typical corrections can exceed those associated with QCD considerably. Beyond one loop, only universal (angular independent) corrections are known to all orders except for massless e + e − −→ f f processes where also angular dependent corrections exist in the literature. In this paper we present general arguments for the consistent resummation of angular dependent subleading (SL) logarithmic corrections to all orders in the regime where all invariants are still large compared to the gauge boson masses. We discuss soft isospin correlations, fermion mass and gauge boson mass gap effects, the longitudinal and Higgs boson sector as well as mixing contributions including CKM effects for massive quarks. Two loop arguments are interpreted in the context of the effective high energy effective theory based on the Standard Model Lagrangian in the symmetric basis with the appropriate matching conditions to include the soft QED regime. The result is expressed in exponentiated operator form in a CKM-extended isospin space in the symmetric basis. Thus, a full electroweak SL treatment based on the infrared evolution equation method is formulated for arbitrary high energy processes at future colliders. Comparisons with known results are presented. * Michael.Melles@psi.ch

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“…In fact, since many years, it was known that, in certain circumstances, large logarithmic terms, in particular quadratic logarithms can appear [5,6]. The general features of the asymptotic one loop electroweak corrections have been studied, a classification of the linear and quadratic logarithms have been established, some two loop effects have been computed and the possibility of resumming certain classes of contributions have been discussed [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

High energy behavior ofγγ→ff¯processes in the standard model and minimal supersymmetric standard model

Layssac

Renard

2001

Phys. Rev. D

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We compute the leading logarithms electroweak contributions to γγ → ff processes in SM and MSSM. Several interesting properties are pointed out, such as the importance of the angular dependent terms, of the Yukawa terms, and especially of the tan 2 β dependence in the SUSY contributions. These properties are complementary to those found in e + e − → ff . These radiative correction effects should be largely observable at future high energy γγ colliders. Polarized beams would bring interesting checks of the structure of the one loop corrections. We finally discuss the need for two-loop calculations and resummation.

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New insights into the perturbative structure of electroweak Sudakov logarithms

Cited by 53 publications

References 13 publications

Electroweak corrections to W-boson pair production at the LHC

Electroweak corrections to W-boson pair production at the LHC

Resummation of angular dependent corrections in spontaneously broken gauge theories

High energy behavior ofγγ→ff¯processes in the standard model and minimal supersymmetric standard model

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