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 present full next-to-leading order predictions for the production cross sections and distributions of on-shell massive gauge boson pair production in the Standard Model, including the QCD and electroweak corrections.
Abstract: Electroweak gauge boson pair production is one of the most important Standard Model processes at the LHC, not only because it is a benchmark process but also by its ability to probe the electroweak interaction directly. We present full next-to-leading order predictions for the production cross sections and distributions of on-shell massive gauge boson pair production in the Standard Model. This includes the QCD and electroweak (EW) corrections. We study the hierarchy between the different channels when looking at the size of the QCD gluon-quark-induced processes and the EW photon-quark-induced processes and provide the first comprehensive explanation of this hierarchy thanks to analytical leading-logarithmic results. We also provide a detailed study of the theoretical uncertainties affecting the total cross section predictions that stem from scale variation, parton distribution function and ${\ensuremath{\alpha}}_{s}$ errors. We then compare with the present LHC data.
148 citations
TL;DR: In this article, the annihilation crosssection of two neutralinos at rest into two photons is computed for indirect detection of neutralino dark matter in the galactic halo through a quasi-monochromatic gamma-ray line.
148 citations
TL;DR: In this article, the dominant radiative correction effects in all electroweak precision tests can be exactly characterized in terms of two quantities, the ϱ-mparameter and the GIM-violating Z → b b coupling.
148 citations
TL;DR: In this paper, the authors investigated the quantum correction to the triple coupling of the lightest Higgs boson in such a scenario, and found that the condition of the strong first-order phase transition necessarily leads to the deviation of at least 10% from the Standard Model prediction.
148 citations
TL;DR: In this paper, the authors present a fully automated implementation of next-to-leading order electroweak (NLO EW) corrections in the OpenLoops matrix-element generator combined with the Sherpa and Munich Monte Carlo frameworks.
Abstract: We present a fully automated implementation of next-to-leading order electroweak (NLO EW) corrections in the OpenLoops matrix-element generator combined with the Sherpa and Munich Monte Carlo frameworks. The process-independent character of the implemented algorithms opens the door to NLO QCD + EW simulations for a vast range of Standard Model processes, up to high particle multiplicity, at current and future colliders. As a first application, we present NLO QCD + EW predictions for the production of positively charged on-shell W bosons in association with up to three jets at the Large Hadron Collider. At the TeV energy scale, due to the presence of large Sudakov logarithms, EW corrections reach the 20-40% level and play an important role for searches of physics beyond the Standard Model. The dependence of NLO EW effects on the jet multiplicity is investigated in detail, and we find that W + multijet final states feature genuinely different EW effects as compared to the case of W + 1 jet.
147 citations