Results 11 to 20 of about 3,101 (165)
Journal of High Energy Physics, 2021 There are two canonical approaches to treating the Standard Model as an Effective Field Theory (EFT): Standard Model EFT (SMEFT), expressed in the electroweak symmetric phase utilizing the Higgs doublet, and Higgs EFT (HEFT), expressed in the broken ...
Timothy Cohen +3 more
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SMEFT at NNLO+PS: Vh production [PDF]
Journal of High Energy PhysicsIn the context of the Standard Model effective field theory (SMEFT) the next-to-next-to-leading (NNLO) QCD corrections to the Higgsstrahlungs (Vh) processes in hadronic collisions are calculated and matched to a parton shower (PS).
Ulrich Haisch +2 more
exaly +7 more sources
European Physical Journal C: Particles and Fields, 2023 This work is based on a bottom-up approach to the standard-model effective field theory (SMEFT), resulting in an equiprobable space of Wilson coefficients.
Federico Camponovo, Giampiero Passarino
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smelli – the SMEFT Likelihood [PDF]
Proceedings of Tools for High Energy Physics and Cosmology — PoS(TOOLS2020), 2021 I present the Python package smelli that implements a global likelihood function in the space of dimension-six Wilson coefficients in the Standard Model Effective Field Theory (SMEFT).
Peter Stangl, Stangl, Peter
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The importance of flavor in SMEFT Electroweak Precision Fits [PDF]
Journal of High Energy Physics, 2023 Effective field theory tools are essential for exploring non-Standard Model physics at the LHC in the absence of the discovery of new light particles.
Pier Paolo Giardino, Sally Dawson
exaly +3 more sources
ALP — SMEFT interference [PDF]
Journal of High Energy Physics, 2021 The Standard Model Effective Field Theory (SMEFT) offers a powerful theoretical framework for parameterizing the low-energy effects of heavy new particles with masses far above the scale of electroweak symmetry breaking.
Anne Mareike Galda +5 more
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Threshold corrections in SMEFT
Journal of High Energy PhysicsThreshold corrections provide a universal link between experimentally measured broken-phase parameters and MS ¯ $$ \overline{\mathrm{MS}} $$ renormalised symmetric-phase parameters used in SMEFT renormalisation-group (RG) analyses and matching to new ...
Anke Biekötter +2 more
doaj +4 more sources
Adding Flavor to the SMEFT [PDF]
Journal of High Energy Physics, 2022 We study the flavor structure of the lepton and baryon number--conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several well-motivated flavor symmetries and symmetry breaking ...
Thomsen, Anders Eller +2 more
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Froggatt-Nielsen meets the SMEFT [PDF]
Journal of High Energy PhysicsWe study the matching of Froggatt-Nielsen theories of flavour onto the Standard Model Effective Field Theory (SMEFT), upon integrating out a heavy Beyond-the-Standard-Model (BSM) scalar ‘flavon’ whose vacuum expectation value breaks an Abelian flavour ...
Loisa, Eetu, Talbert, Jim
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The European Physical Journal C, 2023 This document contains lectures on SMEFT, which is an effective field theory of the degrees of freedom of the Standard Model. The material is at a basic, introductory level, without assuming any prior knowledge of effective field theory techniques.
Adam Falkowski, Falkowski, Adam
core +5 more sources