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Related papers: One-loop Self-energies in the Electroweak Model wi…

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An update of the electroweak measurements at LEP and SLC is presented. These measurements are used to perform precise tests of the Standard Model. A constraint on the Standard Model Higgs mass is obtained when the direct measurements of…

High Energy Physics - Experiment · Physics 2007-05-23 E. Tournefier

We consider electroweak (EW) gauge boson corrections to the masses of pseudoscalar mesons to next to leading order (NLO) in $\alpha_s$ and $1/N_C$. The pion mass shift induced by the $Z$-boson is shown to be $m_{\pi^\pm}-m_{\pi^0} =…

High Energy Physics - Phenomenology · Physics 2023-08-02 Antonio Pich , Arthur Platschorre , Mario Reig

We present a model of electroweak symmetry breaking in a warped extra dimension where electroweak symmetry is broken at the UV (or Planck) scale. An underlying conformal symmetry is broken at the IR (or TeV) scale generating masses for the…

High Energy Physics - Phenomenology · Physics 2015-05-13 Yanou Cui , Tony Gherghetta , James D. Wells

We present a model that unites the electroweak interaction with general relativity without specifying a space-time metric. This is made possible by embedding the kinetic terms for gravity and electroweak theory using one $\SL$ connection…

High Energy Physics - Theory · Physics 2007-07-02 Stephon H. S. Alexander

We perform precision electroweak tests on the $Sp(6)_L \times U(1)_Y$ model. The purpose of the analysis is to delineate the model parameters such as the mixing angles of the extra gauge bosons present in this model. We find that the model…

High Energy Physics - Phenomenology · Physics 2009-10-28 T. K. Kuo , Gye T. Park

The complete list of electroweak chiral Lagrangian for W', Z' and a neutral light higgs with symmetry $SU(2)_1\otimes SU(2)_2\otimes U(1)$ is provided. The bosonic part is accurate up to order of $p^4$, the matter part involving various…

High Energy Physics - Phenomenology · Physics 2009-01-06 Shun-Zhi Wang , Shao-Zhou Jiang , Feng-Jun Ge , Qing Wang

We consider virtual electroweak corrections to the form factors for massless chiral fermions coupling to an SU(2)xU(1) singlet gauge boson in the asymptotic region $s\gg M_W^2$, where the invariant mass $s$ of the external gauge boson is…

High Energy Physics - Phenomenology · Physics 2010-04-05 S. Pozzorini

In part I and II of this series of papers all elements have been introduced to extend, to two loops, the set of renormalization procedures which are needed in describing the properties of a spontaneously broken gauge theory. In this paper,…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Actis , G. Passarino

On the verge of conclusive checks on the Standard Model by the LHC, we discuss some of the basic assumptions. The reason for this analysis stems from a recent proposal of an Electroweak Model based on a nonlinearly realized gauge group…

High Energy Physics - Phenomenology · Physics 2011-03-15 D. Bettinelli , R. Ferrari , A. Quadri

We perform a manifestly gauge-independent analysis of the vacuum stability in the Standard Model (SM) including two-loop matching, three-loop renormalization group evolution, and pure QCD corrections through four loops. All these…

High Energy Physics - Phenomenology · Physics 2015-11-18 A. V. Bednyakov , B. A. Kniehl , A. F. Pikelner , O. L. Veretin

A Lagrangian of electroweak interactions without Higgs is used to study the contributions of quarks and leptons to the masses of the W and the Z bosons. It is shown that the $SU(2)\times U(1)$ symmetry is broken by both fermion masses and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bing An Li

We study the electroweak phase transition in a supersymmetric version of the Standard Model, in which a gauge singlet superfield is added to the Higgs sector. We show that the order of the transition is determined by the trilinear soft…

High Energy Physics - Phenomenology · Physics 2009-10-22 M. Pietroni

Higgs decays to gauge boson pairs are a crucial ingredient in the study of Higgs properties, with the decay $H\rightarrow\gamma\gamma$ being particularly sensitive to new physics effects. Assuming all potential new physics occurs at…

High Energy Physics - Phenomenology · Physics 2018-11-26 Sally Dawson , Pier Paolo Giardino

In this paper, we investigate the electron self-energy and effective mass in a single heterostructure using Green-function method. Numerical calculations of the electron self-energy and effective mass for GaAs/AlAs heterostructure are…

Materials Science · Physics 2009-11-07 Xiu-Kun Hua , Yin-Zhong Wu , Zhen-Ya Li

Numerical calculations of the electron self-energy without any expansion in the binding nuclear field are required in order to match the rapidly advancing precision of experimental spectroscopy. For the lightest elements, particularly…

Atomic Physics · Physics 2025-02-20 V. A. Yerokhin , Z. Harman , C. H. Keitel

The Higgs decay $H\to \gamma\gamma$ duo to the virtual $W$-loop effect is revisited in the unitary gauge by using the symmetry-preserving and divergent-behavior-preserving loop regularization method, which is realized in the four…

High Energy Physics - Phenomenology · Physics 2012-04-12 Da Huang , Yong Tang , Yue-Liang Wu

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

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

After reviewing the calculation of the Standard Model one-loop effective potential in a class of linear gauges, we discuss the physical observables entering the vacuum stability analysis. While the electroweak-vacuum-stability bound on the…

High Energy Physics - Phenomenology · Physics 2015-06-19 Luca Di Luzio , Luminita Mihaila

The measurements of electroweak sector of the Standard Model are presented, including most recent results from LEP, Tevatron and HERA colliders. The robustness of the Standard Model is illustrated with the precision measurements, the…

High Energy Physics - Experiment · Physics 2009-11-11 Cristinel Diaconu
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