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The status of several precisely measured electroweak parameters is reviewed. Natural relations among them are shown to constrain the Higgs mass, m_H, as well as various ``New Physics'' effects. Indications of an anomalous Zb anti-b coupling…

High Energy Physics - Phenomenology · Physics 2008-11-26 William J. Marciano

We present an update of the global fit of the Standard Model electroweak sector to latest experimental results. We include new kinematic top quark and $W$ boson mass measurements from the LHC, a $\sin^2\theta^{\ell}_{\mathrm{eff}}$ result…

High Energy Physics - Phenomenology · Physics 2019-12-16 Johannes Haller , Andreas Hoecker , Roman Kogler , Klaus Mönig , Thomas Peiffer , Jörg Stelzer

This paper is based on lectures presented to mathematical physicists and attempts to provide an overview of the present status of the Standard Model, its experimental tests, phenomenological and experimental motivations for going beyond the…

High Energy Physics - Theory · Physics 2009-09-25 John Ellis

Three aspects of supersymmetric theories are discussed: electroweak symmetry breaking, the issues of flavor, and gauge unification. The heavy top quark plays an important, sometimes dominant, role in each case. Additional symmetries lead to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Lawrence J. Hall

Future high precision electroweak measurements require understanding of Standard Model expectations to multi-loop accuracy, both, for the predictions of production cross-sections of signal and background, as well as for pseudo-observables.…

High Energy Physics - Phenomenology · Physics 2008-10-13 Jens Erler

If the electroweak symmetry is broken by some unspecified strong dynamics, composite fermions may exist with definite transformation properties under SU(2)_L x SU(2)_R/SU(2)_{L+R} and may play a role in giving masses by mixing to all the…

High Energy Physics - Phenomenology · Physics 2010-02-22 Riccardo Barbieri , Gino Isidori , Duccio Pappadopulo

The calculation of electroweak precision observables in the MSSM is reviewed. The description of the 1997 data and the results of updated global fits are discussed in comparison with the Standard Model.

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Hollik

This talk summarizes topical theoretical work for tests of the electroweak theory and reviews the status of the electroweak Standard Model in view of the recent precision data reported at the 1997 summer conferences.

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Hollik

This note presents a combination of published and preliminary electroweak results from the four LEP collaborations and the SLD collaboration which were prepared for the 2001 summer conferences. Averages from Z resonance results are derived…

We present updated global fits of the Standard Model and beyond to electroweak precision data, taking into account recent progress in theoretical calculations and experimental measurements. From the fits, we derive model-independent…

High Energy Physics - Phenomenology · Physics 2014-11-27 Marco Ciuchini , Enrico Franco , Satoshi Mishima , Maurizio Pierini , Laura Reina , Luca Silvestrini

A review of the decade of Z-pole electroweak physics is presented. Although all experimental work has been completed, it represents a ``Golden Age'' in our understanding of the Minimal Electroweak Standard Model (MSM). The latest (and…

High Energy Physics - Experiment · Physics 2011-03-23 Morris L. Swartz

We discuss the development of the theory of electroweak radiative corrections and its role in testing the Standard Model, predicting the top quark mass, constraining the Higgs boson mass, and searching for deviations that may signal the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alberto Sirlin

The measurement of Standard Model processes tests the validity of the model at a given scale and is simultaneously sensitive to new physics through loop effects or interference with the Standard Model amplitudes. A variety of studies has…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Moenig

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…

The evidence for electroweak radiative corrections not contained in $\alpha(m_Z)$ is examined. At low energies there is very strong evidence in the analysis of the unitarity of the CKM matrix. At LEP and collider experiments the current…

High Energy Physics - Phenomenology · Physics 2010-11-01 Alberto Sirlin

We review the loop effects of the low energy supersymmetry. The global success of the Standard Model rises two related questions: how strongly the mass scales of the superpartners are constrained and can they be, nevertheless, indirectly…

High Energy Physics - Phenomenology · Physics 2016-11-03 P. H. Chankowski , S. Pokorski

The complementarity between results anticipated from SuperB with those from the LHC experiments is discussed here. SuperB can contribute to searches for new physics using indirect constraints via precision tests of the standard model. In…

High Energy Physics - Phenomenology · Physics 2015-06-04 Adrian Bevan

The measurements resulting from the analysis of the LEP2 data have brought more strong evidence in support of the standard electroweak model. In particular the LEP2 data has revealed (i) the first determination of the SU(2) gauge bosons…

High Energy Physics - Experiment · Physics 2007-05-23 Paolo Azzurri

Precision electroweak measurements at LEP currently check the validity of the Standard Model to about one part in a thousand. Any successful model of physics beyond the Standard Model must be consistent with these observations. The impact…

High Energy Physics - Phenomenology · Physics 2007-05-23 Howard E. Haber

We relate all $C$-- and $P$--invariant anomalous triple vector--boson couplings to the oblique electroweak parameters. LEP constraints on the latter then yield the strongest and most general simultaneous bounds to date on the former. Even…

High Energy Physics - Phenomenology · Physics 2008-02-03 Debajyoti Choudhury , Probir Roy , Rahul Sinha