Results 71 to 80 of about 5,577,820 (369)
Probing new electroweak states via precision measurements at the LHC and future colliders
Journal of High Energy Physics, 2019 Several new physics scenarios, motivated e.g. by dark matter, feature new electroweakly charged states where the lightest particle in the multiplet is stable and neutral.
Luca Di Luzio +2 more
doaj +1 more source
CP Violation Beyond the Standard Model [PDF]
, 1996 We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We critically review
Grossman, Yuval +2 more
core +4 more sources
Beyond the Standard Model effective field theory: The singlet extended Standard Model [PDF]
, 2020 One of the assumptions of simplified models is that there are a few new particles and interactions accessible at the LHC and all other new particles are heavy and decoupled.
S. Adhikari, I. Lewis, M. Sullivan
semanticscholar +1 more source
Dark matter blind spots at one-loop
Journal of High Energy Physics, 2019 We evaluate the impact of one-loop electroweak corrections to the spin-independent dark matter (DM) scattering cross-section with nucleons (σ SI), in models with a so-called blind spot for direct detection, where the leading-order prediction for the ...
Tao Han +3 more
doaj +1 more source
Chiral Dynamics beyond the Standard Model [PDF]
, 2006 The SM Lagrangian without physical scalars is rewritten as the LO of a Low-Energy Effective Theory invariant under a higher non linear symmetry S_{nat} \supset SU(2)_W \times U(1)_Y.
Ambrosino +11 more
core +4 more sources
Indirect probe of electroweak-interacting particles with mono-lepton signatures at hadron colliders
Journal of High Energy Physics, 2019 Electroweak-interacting massive particles (EWIMPs) exist in a broad class of new physics models beyond the Standard Model. Searching for such particles is one of most primary goal at the LHC and future colliders.
Shigeki Matsumoto +2 more
doaj +1 more source
Interference effects in dilepton resonance searches for Z′ bosons and dark matter mediators
Journal of High Energy Physics, 2020 New Z′ gauge bosons arise in many extensions of the Standard Model and predict resonances in the dilepton invariant mass spectrum. Searches for such resonances therefore provide important constraints on many models of new physics, but the resulting ...
Felix Kahlhoefer +3 more
doaj +1 more source
Higgs couplings beyond the Standard Model [PDF]
, 2013 We consider the Higgs boson decay processes and its production, and provide a parameterisation tailored for testing models of new physics beyond the Standard Model.
Cacciapaglia, Giacomo +3 more
core +4 more sources
Physics beyond the Standard Model [PDF]
AIP Conference Proceedings, 1996 We discuss some of the signatures associated with extensions of the Standard Model related to the neutrino and electroweak symmetry breaking sectors, with and without supersymmetry. The topics include a basic discussion of the theory of neutrino mass and the corresponding extensions of the Standard Model that incorporate massive neutrinos; an overview ...
openaire +2 more sources
Lowering the scale of Pati-Salam breaking through seesaw mixing
Journal of High Energy Physics, 2021 We analyse the experimental limits on the breaking scale of Pati-Salam extensions of the Standard Model. These arise from the experimental limits on rare-meson decay processes mediated at tree-level by the vector leptoquark in the model.
Matthew J. Dolan +2 more
doaj +1 more source