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Effective Lagrangians are a useful tool for a data-driven approach to physics beyond the Standard Model at the LHC. However, for the new physics scales accessible at the LHC, the effective operator expansion is only relatively slowly…

High Energy Physics - Phenomenology · Physics 2016-11-09 Ayres Freitas , David Lopez-Val , Tilman Plehn

Using gauge invariant effective Lagrangians in 1+3 dimensions describing the Standard Model in 1+4 dimensions, we explore dynamical electroweak symmetry breaking. The Top Quark Seesaw model arises naturally, as well as the full CKM…

High Energy Physics - Phenomenology · Physics 2014-11-17 Hsin-Chia Cheng , Christopher T. Hill , Jing Wang

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

We show how spontaneous supersymmetry breaking in the vacuum state of higher-derivative supergravity is transmitted, as explicit soft supersymmetry-breaking terms, to the effective Lagrangian of the standard electroweak model. The general…

High Energy Physics - Theory · Physics 2009-10-30 Ahmed Hindawi , Burt A. Ovrut , Daniel Waldram

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…

High Energy Physics - Phenomenology · Physics 2020-06-24 Ansgar Denner , Stefan Dittmaier

Aspects of theoretical electroweak physics are summarized, including the status of electroweak radiative corrections, the hadronic contribution to the running of alpha, global fits to precision data and their implication for testing the…

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

We discuss the phenomenology of the most general effective Lagrangian, up to operators of dimension 5, build with standard model fields and interactions including right-handed neutrinos. In particular we find there is a dimension 5…

High Energy Physics - Phenomenology · Physics 2009-08-13 Alberto Aparici , Kyungwook Kim , Arcadi Santamaria , Jose Wudka

The most important hint of physics beyond the Standard Model (SM) from the 1995 precision electroweak data is that the most precisely measured quantities, the total, leptonic and hadronic decay widths of the $Z$ and the effective weak…

High Energy Physics - Phenomenology · Physics 2010-11-23 Kaoru Hagiwara

I review constraints on the Standard Model (SM) Higgs boson from high energy electroweak (EW) precision data. The same data set also strongly limits various mixing effects of hypothetical extra neutral gauge bosons (Z') with the ordinary Z.…

High Energy Physics - Phenomenology · Physics 2009-07-07 Jens Erler

We argue that a Standard Model decoupling limit is generically the necessary ingredient which makes scenarios of electro-weak symmetry breaking viable. This applies especially also to models of dynamical electro-weak symmetry breaking.…

High Energy Physics - Phenomenology · Physics 2016-11-03 Manfred Lindner , Erhard Schnapka

Several reasonably model-independent formulations of the implications of new physics for precision electroweak measurements have been developed over the past years, most notably by Peskin and Takeuchi, and by Altarelli \etal. These…

High Energy Physics - Phenomenology · Physics 2015-06-25 C. P. Burgess

We study the impact of LEP2 constraints on the dimensionless coefficients of the electroweak chiral Lagrangian on the precision observables using the improved renormalization group equations. We find that the current uncertainty in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sukanta Dutta , Kaoru Hagiwara , Qi-Shu Yan

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

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

The global fit of the Standard Model predictions to electroweak precision data, which has been routinely performed in the past decades by several groups, led to the prediction of the top quark and the Higgs boson masses before their…

High Energy Physics - Phenomenology · Physics 2019-05-01 Jens Erler , Matthias Schott

We review Electroweak breaking in warped Extra Dimensions and show how it is constrained by Electroweak precision tests. We then proceed to describe a model which is based on a bulk Higgs field and a metric that is deformed from the usual…

High Energy Physics - Phenomenology · Physics 2011-07-26 Gero von Gersdorff

We review the ideas of renormalizable field theories and the Standard Model at the Born (neutral currents, the Higgs mechanism and unification) and quantum level. We subsequently illustrate how high statistics experiments are producing the…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Halzen

Experiments have confirmed the presence of a mass gap between the Standard Model and potential New Physics. Consequently, the exploration of effective field theories to detect signals indicative of Physics Beyond the Standard Model is of…

High Energy Physics - Phenomenology · Physics 2024-10-22 Ignasi Rosell , Antonio Pich , Juan Jose Sanz-Cillero

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

We compute bounds on coefficients of effective operators in the Standard Model that can be inferred from observations of neutrino scattering by the COHERENT experiment. While many operators are bound extremely well by past experiments the…

High Energy Physics - Phenomenology · Physics 2022-11-01 Witold Skiba , Qing Xia