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Related papers: Effective Theory Analysis of Precision Electroweak…

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Precision experiments, such as those performed at LEP and SLC, offer us an excellent opportunity to constrain extended gauge model parameters. To this end, it is often assumed, that in order to obtain more reliable estimates, one should…

High Energy Physics - Phenomenology · Physics 2011-09-13 M. Czakon , J. Gluza , F. Jegerlehner , M. Zralek

We present analytic results for electroweak precision observables (EWPO) at next-to-leading order (NLO) in dimension-six SMEFT, with no assumptions on the flavour structure of SMEFT Wilson coefficients. The results are given in five…

High Energy Physics - Phenomenology · Physics 2025-03-12 Anke Biekötter , Benjamin D. Pecjak

We calculate the $\mathcal{O}(\alpha)$ weak corrections to top quark pair production at the LHC and include anomalous electroweak interactions from dimension-six operators. The loop calculation and renormalization are consistently done…

High Energy Physics - Phenomenology · Physics 2020-04-06 Till Martini , Markus Schulze

Electroweak precision tests of the Standard Model of the fundamental interactions are reviewed ranging from the lowest to the highest energy experiments. Results from global fits are presented with particular emphasis on the extraction of…

High Energy Physics - Phenomenology · Physics 2012-09-25 Jens Erler

As a part of the celebration of 50 years of the Standard Model of particle physics, I present a brief history of the precision theory of electroweak interactions. I emphasize in particular the theoretical preparations for the LEP program…

High Energy Physics - Phenomenology · Physics 2020-03-24 Michael E. Peskin

We review the effective field theory approach to physics beyond the Standard Model using dimension-six operators. Topics include the choice of operator basis, electroweak boson pair production, precision electroweak physics (including…

High Energy Physics - Phenomenology · Physics 2015-06-18 Scott Willenbrock , Cen Zhang

The study of electron-positron collisions at LEP, together with additional measurements from other experiments, in particular those at SLC and at the Tevatron, has allowed for tests of the electroweak Standard Model with unprecedented…

High Energy Physics - Phenomenology · Physics 2009-11-10 Guido Altarelli , Martin W. Grunewald

The precision electroweak program, including weak neutral current (WNC), $Z$-pole, and high energy collider experiments, has been the primary prediction and test of electroweak unification. It has established that the standard model (SM) is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Langacker

The Lee-Wick (LW) formulation of higher-derivative theories can be extended from one in which the extra degrees of freedom are represented as a single heavy, negative-norm partner for each known particle (N=2), to one in which a second,…

High Energy Physics - Phenomenology · Physics 2013-05-30 Richard F. Lebed , Russell H. TerBeek

This is an overview of the electroweak physics achieved at LEP. After a brief review of the standard model and the calculation of the radiative corrections both in the MS and on-shell schemes, we introduce the Z decay parameters around the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kyungsik Kang

Effective Supersymmetry is presented as a theory of physics above the electroweak scale which has significant theoretical advantages over both the standard model and the Minimal Supersymmetric Standard Model (MSSM). The theory is…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. G. Cohen , D. B. Kaplan , A. E. Nelson

We compute the next-to-leading order QCD and electroweak corrections to $Z$ and $W$ pole observables using the dimension-6 Standard Model effective field theory and present numerical results that can easily be included in global fitting…

High Energy Physics - Phenomenology · Physics 2022-09-28 Sally Dawson , Pier Paolo Giardino

Precision measurements of electroweak observables provide stringent tests of the Standard Model structure and an accurate determination of its parameters. An overview of the present experimental status is presented.

High Energy Physics - Phenomenology · Physics 2011-01-25 A. Pich

These notes contain some of the material I presented at TASI 96 on the comparison of the standard model with precision electroweak data. After a physical accounting of the dominant electroweak radiative corrections, including the effects of…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. D. Peccei

Effective field theory tools are essential for exploring non-Standard Model physics at the LHC in the absence of the discovery of new light particles. Predictions for observables are typically made at the lowest order in the QCD and…

High Energy Physics - Phenomenology · Physics 2024-12-19 Luigi Bellafronte , Sally Dawson , Pier Paolo Giardino

The gauge-invariant operators up to dimension six in the low-energy effective field theory below the electroweak scale are classified. There are 70 Hermitian dimension-five and 3631 Hermitian dimension-six operators that conserve baryon and…

High Energy Physics - Phenomenology · Physics 2024-03-21 Elizabeth E. Jenkins , Aneesh V. Manohar , Peter Stoffer

The status of precision electroweak data, tests of the standard model, determination of its parameters, and constraints on new physics, are surveyed.

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Langacker , Jens Erler

Precision measurements of electroweak observables provide stringent tests of the Standard Model structure and an accurate determination of its parameters. A brief overview of the present experimental status is presented. A more extensive…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Pich

This note presents a combination of published and preliminary electroweak results from the four LEP collaborations ALEPH, DELPHI, L3 and OPAL based on electron-positron collision data taken at centre-of-mass energies above the Z-pole, $130…

We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH,…