Topic
Electroweak interaction
About: Electroweak interaction is a research topic. Over the lifetime, 16333 publications have been published within this topic receiving 468927 citations. The topic is also known as: electroweak force.
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TL;DR: In this paper, the authors presented the minimal theory space model of electroweak symmetry breaking, with two sites and four link fields, and the minimal set of fermions, which is the first alternative to weak-scale supersymmetry with naturally light Higgs fields.
Abstract: Recently a new class of theories of electroweak symmetry breaking have been constructed. These models, based on deconstruction and the physics of theory space, provide the first alternative to weak-scale supersymmetry with naturally light Higgs fields and perturbative new physics at the TeV scale. The Higgs is light because it is a pseudo-Goldstone boson, and the quadratically divergent contributions to the Higgs mass are cancelled by new TeV scale ``partners'' of the {\em same} statistics. In this paper we present the minimal theory space model of electroweak symmetry breaking, with two sites and four link fields, and the minimal set of fermions. There are very few parameters and degrees of freedom beyond the Standard Model. Below a TeV, we have the Standard Model with two light Higgs doublets, and an additional complex scalar weak triplet and singlet. At the TeV scale, the new particles that cancel the 1-loop quadratic divergences in the Higgs mass are revealed. The entire Higgs potential needed for electroweak symmetry breaking--the quartic couplings as well as the familiar negative mass squared--can be generated by the top Yukawa coupling, providing a novel link between the physics of flavor and electroweak symmetry breaking.
465 citations
TL;DR: In this article, a comprehensive review of physics effects generated by leptoquarks (LQs), i.e., hypothetical particles that can turn quarks into leptons and vice versa, of either scalar or vector nature, is presented.
464 citations
TL;DR: In this article, the NuTeV Collaboration has extracted the electroweak parameter sin 2 θ W from the measurement of the ratios of neutral current to charged current v and ν cross sections.
Abstract: The NuTeV Collaboration has extracted the electroweak parameter sin 2 θ W from the measurement of the ratios of neutral current to charged current v and ν cross sections. Our value, sin 2 θ W ( o n - s h e l l ) = 0.2277 ′0.0013(stat) ′ 0.0009(syst), is 3 standard deviations above the standard model prediction. We also present a model independent analysis of the same data in terms of neutral-current quark couplings.
462 citations
TL;DR: In this paper, the top quark pole mass at the Tevatron has been determined to be 173.3 ± 2.7 GeV by using the total cross-section for top-quark pair production at the hadron colliders.
458 citations
TL;DR: In this article, the authors summarize the theoretical properties of the Standard Model Higgs boson and the Higgs sector of the minimal super-symmetric extension of the standard model (MSSM).
455 citations