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 article, the prospective implications for Supersymmetry of present and future low energy precision studies are discussed, as well as a review of the current state of the art.
131 citations
TL;DR: In this article, the inclusion of single and double differential crosssections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x between 0.0032 and 0.65 are measured in e^+ p collisions.
Abstract: The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x between 0.0032 and 0.65 are measured in e^+ p collisions. The data were taken with the H1 detector at HERA between 1994 and 1997, and they correspond to an integrated luminosity of 35.6 pb^-1. The Q^2 evolution of the parton densities of the proton is tested, yielding no significant deviation from the prediction of perturbative QCD. The proton structure function F_2(x,Q^2) is determined. An extraction of the u and d quark distributions at high x is presented. At high Q^2 electroweak effects of the heavy bosons Z0 and W are observed and found to be consistent with Standard Model expectation.
131 citations
TL;DR: In this paper, a framework relying on both perturbative and non-perturbative lattice computations which will be able to reliably determine the parameters of the EW phase transition was discussed, and a motivation for the use of 3D effective theory in the lattice simulations, rather than the complete 4D one, was provided.
131 citations
TL;DR: In this paper, the authors studied how Kaluza-Klein excitations of the SM gauge bosons affect the electroweak precision observables in 4+1 dimensions, and they found the following 95% C.L. bounds: M>3.5 TeV and M>4.3 TeV if the higgs is so light that will be discovered at LEP2.
131 citations
TL;DR: A generalized custodial symmetry is implemented in the two-Higgs-doublet model and it is proved the existence of a new custodial scenario characterized by m(H(+/-))(2) = m-H(0) instead of m-A(0), which may be much lighter than the charged H( +/-), giving rise to interesting phenomenology.
Abstract: In the Standard Model for electroweak interactions, the Higgs sector is known to display a "custodial" symmetry protecting the mass relation m_{W^\pm}^2=m_{W_3}^2 from large corrections. When considering extensions of the scalar sector, this symmetry has to be introduced by hand in order to pass current electroweak precision tests in a natural way. In this Letter we implement a generalized custodial symmetry in the two-Higgs-doublet model. Assuming the invariance of the potential under CP transformations, we prove the existence of a new custodial scenario characterized by m_{H^\pm}^2=m_{H^0}^2 instead of m_{H^\pm}^2=m_{A^0}^2. Consequently the pseudoscalar A^0 may be much lighter than the charged H^\pm, giving rise to interesting phenomenology. Comment: 4 pages, RevTeX4
131 citations