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Related papers: The Global Electroweak Fit

200 papers

The bounds on the Higgs mass in the Standard Model are re-analyzed using the precision electroweak data presented at the International Europhysics Conference on High Energy Physics, Brussels, 27 July -- 2 August, 1995

High Energy Physics - Phenomenology · Physics 2007-05-23 P. H. Chankowski , S. Pokorski

We discuss the bound on the mass of the Higgs boson arising from precision electroweak measurements in the context of the triviality of the scalar Higgs model. We show that, including possible effects from the underlying nontrivial…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Sekhar Chivukula

It is shown that the effective Standard Model theory with the physical Higgs mass lighter than $\sim 200$ GeV takes the form of an unbroken electroweak theory already at moderately high, $O(1 TeV)$, energy scales. No such transitional scale…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marko B. Popovic

Whether the Standard Model electroweak vacuum is stable, metastable or unstable depends crucially on the top mass (and, to a lesser extent, on other measurable quantities). These topics are reviewed and updated by taking into account the…

High Energy Physics - Phenomenology · Physics 2018-01-10 Alberto Salvio

We study extensions of the Standard Model with general new vector bosons. The full Standard Model gauge symmetry is used to classify the extra vectors and constrain their couplings. We derive the corresponding effective Lagrangian, valid at…

High Energy Physics - Phenomenology · Physics 2025-02-05 F. del Aguila , J. de Blas , M. Perez-Victoria

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 2007-05-23 A. Pich

We present a concise review of the status of the Standard Model and of the models of new physics.

High Energy Physics - Phenomenology · Physics 2007-05-23 Guido ALTARELLI

We present a primer on the Standard Model of the electroweak interaction. Emphasis is given to the historical aspects of the theory's formulation. The radiative corrections to the Standard Model are presented and its predictions for the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. F. Novaes

In this work, we review the history and current role of global fits in the search for physics beyond the Standard Model~(BSM), including precision tests of the Standard Model (SM). Although BSM global fits were initially focused on minimal…

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

Summary of electroweak Standard Model, including aspects of gauge summetry, symmetry breaking, and quantum radiative corrections. Implications of precise electroweak measurements for Standard Model and hypothetical non-Standard states and…

High Energy Physics - Phenomenology · Physics 2008-02-03 Dallas C. Kennedy

An updated global fit on the parameter-space of the Aligned Two-Higgs-Doublet model has been performed with the help of the open-source package HEPfit, assuming the Standard-Model Higgs to be the lightest scalar. No new sources of CP…

High Energy Physics - Phenomenology · Physics 2024-03-13 Anirban Karan , Víctor Miralles , Antonio Pich

A set of equations representing the $W/Z$ mass ratio and various observables of $Z$ decays in terms of $\bar\alpha \equiv\alpha (m_Z)$, $G_{\mu}$, $m_Z$, $m_t$, $m_H$, $\bar\alpha_{s} \equiv\alpha_{s} (m_Z)$, $m_b$ and $m_\tau$ (all other…

High Energy Physics - Phenomenology · Physics 2009-10-28 V. A. Novikov , L. B. Okun , A. N. Rozanov , M. I. Vysotsky , V. P. Yurov

I review the results of a recent global fit to electroweak precision data. Particular attention is devoted to the landscape of determinations of the weak mixing angle, recent results on basic properties of the electroweak gauge bosons, and…

High Energy Physics - Phenomenology · Physics 2025-05-07 Jens Erler

I discuss recent progress on fits to dimension-six operators in the Standard Model Effective Theory (SMEFT). I focus on the top quark sector of the SMEFT, as well as the theoretical advances made in computing SMEFT effects through to…

High Energy Physics - Phenomenology · Physics 2019-06-26 Emma Slade

An introduction to the physics of electroweak symmetry breaking is given. We discuss Higgs boson production in $e^+e^-$ and hadronic collisions and survey search techniques at present and future accelerators. Indirect limits on the Higgs…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Dawson

The present status of precision electroweak data is reviewed. These data include measurements of e+e- -> f+fbar, taken at the Z resonance at LEP, which are used to determine the mass and width of the Z boson. In addition, measurements have…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. B. Renton

A global analysis is performed using the latest data from LEP and SLC. Constraints on the electroweak universal parameters ($S,T,U$) and on the masses of the top quark and Higgs boson within the Standard Model (SM) are investigated. The…

High Energy Physics - Phenomenology · Physics 2008-11-26 Seiji Matsumoto

The NuTeV collaboration has extracted the electroweak parameter, $\stw$, from the measurement of the ratios of neutral current to charged current neutrino and antineutrino deep inelastic scattering interactions. We find that our…

High Energy Physics - Experiment · Physics 2007-05-23 G. P. Zeller

The electroweak symmetry may be broken by a composite Higgs which arises naturally as a bound state of the top quark if the standard model gauge fields and fermions propagate in extra dimenions. The top quark mass and the Higgs mass can be…

High Energy Physics - Phenomenology · Physics 2009-10-31 Hsin-Chia Cheng