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Related papers: LEP, SLC and the Standard Model

200 papers

A method is proposed to calculate the confidence level for agreement of data with the Standard Model (SM) by combining information from direct and indirect Higgs Boson searches. Good agreement with the SM is found for $m_H \simeq 120$ GeV…

High Energy Physics - Experiment · Physics 2011-09-13 J. H. Field

Some topics related to Standard Model Higgs boson physics at the Large Hadron Collider are reviewed. Emphasis is put on an overview of QCD corrections to Higgs boson decay and production processes. (Invited talk presented at the XXXth…

High Energy Physics - Phenomenology · Physics 2007-05-23 DIRK GRAUDENZ

Pedagogical lectures on baryogenesis, with emphasis on the electroweak phase transition and electroweak baryogenesis. Contents: (1) Observational evidence for the BAU; (2) Sakharov's conditions for baryogenesis; (3) Example: GUT…

High Energy Physics - Phenomenology · Physics 2007-05-23 James M. Cline

Measuring the polarization of electroweak bosons at the LHC allows for important tests of the electroweak-symmetry-breaking mechanism that is realized in nature. Therefore, precise Standard Model predictions are needed for the production of…

High Energy Physics - Phenomenology · Physics 2021-11-03 Ansgar Denner , Giovanni Pelliccioli

This article presents results for the last unknown two-loop contributions to the $Z$-boson partial widths and $Z$-peak cross-section. These are the so-called bosonic electroweak two-loop corrections, where "bosonic" refers to diagrams…

High Energy Physics - Phenomenology · Physics 2018-06-27 Ievgen Dubovyk , Ayres Freitas , Janusz Gluza , Tord Riemann , Johann Usovitsch

At energies much larger than the mass of the weak gauge bosons, electroweak radiative corrections can lead to significant corrections. At 1 TeV the one loop corrections can be of ${\cal O} (20 %)$ due to large contributions of the Sudakov…

High Energy Physics - Phenomenology · Physics 2009-10-31 Michael Melles

In this letter we present results for next-to-leading-order electroweak corrections to doubly polarised W$^+$W$^-$ production at the LHC in the fully leptonic decay channel. We model the production and the decay of two polarised W bosons in…

High Energy Physics - Phenomenology · Physics 2023-11-28 Ansgar Denner , Christoph Haitz , Giovanni Pelliccioli

We investigate the origin of the unusually large electroweak (EW) radiative effects observed in the extraction of the spin-density matrix and related observables at colliders, focusing on leptonic Z-boson decays. We compute the…

High Energy Physics - Phenomenology · Physics 2025-09-26 Morgan Del Gratta , Federica Fabbri , Michele Grossi , Fabio Maltoni , Davide Pagani , Giovanni Pelliccioli , Alessandro Vicini

In 1997 each LEP experiment collected approximately 55 inv. pb of data at a center-of-mass energy of 183 GeV. These data yield a sample of candidate e+e- -> WW events from which the mass of the W boson, Mw, is measured. The LEP combined…

High Energy Physics - Experiment · Physics 2007-05-23 D. Glenzinski

We report on the precision predictions for the $e^+e^-\to ZZ\gamma$ process including $Z$-boson leptonic decays at the ILC in the standard model (SM). The calculation includes the full next-to-leading (NLO) electroweak (EW) corrections and…

High Energy Physics - Phenomenology · Physics 2016-03-16 Zhang Yu , Duan Peng-Fei , Ma Wen-Gan , Zhang Ren-You , Chen Chong

We present Standard Model predictions for the complete set of phenomenologically relevant electroweak precision pseudo-observables related to the Z-boson: the leptonic and bottom-quark effective weak mixing angles $\sin^2\theta_{\rm…

High Energy Physics - Phenomenology · Physics 2020-01-13 Ievgen Dubovyk , Ayres Freitas , Janusz Gluza , Tord Riemann , Johann Usovitsch

We study the radiative decay of the $Z$ boson, $Z \to \mu^+\mu^-\gamma$, at the LHC, providing both Standard Model (SM) precision analysis and new physics projections. With detailed analysis of Run-2 and future HL-LHC performances, we…

High Energy Physics - Phenomenology · Physics 2026-04-16 Yifan Fei , Peiran Li , Zhen Liu , Maxim Pospelov

The implications of precision $Z$ and $W$-pole and neutral current data for testing the standard electroweak model, determining its parameters, and searching for new physics, are described.

High Energy Physics - Phenomenology · Physics 2016-11-03 Paul Langacker

The recent calculation of the next-to-leading order electroweak corrections to the decay of the Standard Model Higgs boson to two photons in the framework of the complex-mass scheme is briefly summarized.

High Energy Physics - Phenomenology · Physics 2009-01-30 Stefano Actis

We review the empirical evidence for the validity of the Standard Electroweak Theory in nature. The experimental data are interpreted in terms of an effective Lagrangian for Z physics, allowing for potential sources of SU(2) violation and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Dieter Schildknecht

In this conference report a summary is given on the recent theoretical work that has contributed to improve the theoretical predictions for testing the standard model in present and future experiments. Precision calculations for the $Z$…

High Energy Physics - Phenomenology · Physics 2008-02-03 W. Hollik

Recent published and preliminary precision electroweak measurements are reviewed, including new results on the mass of the top quark and mass and width of the W boson. The experimental results are compared with the predictions of the…

High Energy Physics - Experiment · Physics 2007-05-23 Martin W. Grunewald

Theoretical uncertainties affecting electroweak observables are reviewed and the relevance of two-loop electroweak radiative corrections for the precision tests of the Standard Model is discussed.

High Energy Physics - Phenomenology · Physics 2008-02-03 G. Degrassi , S. Fanchiotti , F. Feruglio , P. Gambino , A. Vicini

We review the empirical evidence for the validity of the Standard Electroweak Theory in Nature. The experimental data are interpreted in terms of an effective Lagrangian for Z physics, allowing for potential sources of SU(2) violation and…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Schildknecht

The high statistics of the combined LEP lineshape data are used to derive constraints on hypothetical extensions of the Minimal Standard Model. The data comprises about eight million visible Z decays, recorded between 1989 and 1993. This…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Sopczak