Results 81 to 90 of about 1,585 (136)
Probing the flavour-blind SMEFT: EFT validity and the interplay of energy scales
Journal of High Energy PhysicsThe Standard Model Effective Field Theory (SMEFT) offers a systematic approach to study potential deviations from the Standard Model (SM) through higher-dimensional operators that encapsulate new physics effects.
Luca Mantani, Veronica Sanz
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Two-loop anomalous dimensions for baryon-number-violating operators in SMEFT
Journal of High Energy PhysicsWe compute the two-loop renormalization-group equations for the baryon-number-violating dimension-six operators in the SMEFT. This includes all three gauge interactions, the Yukawa, and Higgs self-interaction contributions.
Sumit Banik +3 more
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Triboson production in the SMEFT
Journal of High Energy PhysicsAbstract We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD. We present results for inclusive cross-sections and differential distributions, finding that these QCD corrections are large, often vary across the ...
Eugenia Celada +3 more
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Holomorphy without supersymmetry in the Standard Model Effective Field Theory
Physics Letters B, 2014 The anomalous dimensions of dimension-six operators in the Standard Model Effective Field Theory (SMEFT) respect holomorphy to a large extent. The holomorphy conditions are reminiscent of supersymmetry, even though the SMEFT is not a supersymmetric ...
Rodrigo Alonso +2 more
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Energy-enhanced dimension eight SMEFT effects in VBF Higgs production
Journal of High Energy PhysicsWe study Higgs boson production via vector boson fusion at the LHC, focusing on the process pp → H + jj and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order 1/Λ4.
Benoît Assi, Adam Martin
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Walls, bubbles and doom — the cosmology of HEFT
Journal of High Energy PhysicsAs experiment charts new territory at the electroweak scale, the enterprise to characterise all possible theories becomes all the more necessary. In the absence of new particles, this ambitious enterprise is attainable and has led to the Higgs Effective ...
R. Alonso +3 more
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RGE effects on new physics searches via gravitational waves
Journal of High Energy PhysicsGravitational wave (GW) observations offer a promising probe of new physics associated with a first-order electroweak phase transition. Precision studies of the Higgs potential, including Fisher matrix analyses, have been extensively conducted in this ...
Katsuya Hashino, Daiki Ueda
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Journal of High Energy PhysicsWe present a new way to interpret Top Standard Model measurements going beyond the SMEFT framework. Instead of the usual paradigm in Top EFT, where the main effects come from tails in momenta distributions, we propose an interpretation in terms of new ...
André Lessa, Verónica Sanz
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Low-energy effective field theory below the electroweak scale: operators and matching
Journal of High Energy Physics, 2018 The gauge-invariant operators up to dimension six in the low-energy effective field theory below the electroweak scale are classified. There are 70 Hermitian dimension-five and 3631 Hermitian dimension-six operators that conserve baryon and lepton number,
Elizabeth E. Jenkins +2 more
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Future DUNE constraints on EFT
Journal of High Energy Physics, 2018 In the near future, fundamental interactions at high-energy scales may be most efficiently studied via precision measurements at low energies. A universal language to assemble and interpret precision measurements is the so-called SMEFT, which is an ...
Adam Falkowski +2 more
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