Higgs scattering in SMEFT is analyzed with von Neumann entropy, linear entropy, and concurrence as momentum-isospin entanglement measures, determined by Wilson coefficients of dimension-6 and dimension-8 operators, revealing energy growth, interference cancellations, suppression conditions, and link
Impact of Higgs-boson measurements on SMEFT fits
3 Pith papers cite this work. Polarity classification is still indexing.
abstract
We present current bounds on SMEFT operators that are mainly constrained by Higgs-boson observables, under different assumptions for the flavour structure of the UV theory. We investigate how the accuracy reached through a dedicated Higgs-boson precision physics program is starting to have a major impact in setting a lower bound on the scale of new physics, and we discuss the relevance of considering the scale evolution of the SMEFT coefficients in this context. We compare our results with the literature, pointing out the consistency of the results in spite of the different assumptions adopted in each analysis, and we discuss future steps aimed at improving the accuracy of the fit.
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hep-ph 3years
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UNVERDICTED 3roles
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A modification to the top-Higgs Yukawa coupling in SMEFT induces a two-loop shift in the W mass through a large anomalous dimension, providing a new indirect probe via electroweak precision observables.
Computes one-loop mixing of bosonic and two-fermion interactions into two-fermion operators in dim-8 SMEFT, leaving only four-fermion to two-fermion mixing to finish the renormalization program.
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Higgs Scattering and Entanglement in SMEFT
Higgs scattering in SMEFT is analyzed with von Neumann entropy, linear entropy, and concurrence as momentum-isospin entanglement measures, determined by Wilson coefficients of dimension-6 and dimension-8 operators, revealing energy growth, interference cancellations, suppression conditions, and link
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When Two Loops Matter: Electroweak Precision in the SMEFT
A modification to the top-Higgs Yukawa coupling in SMEFT induces a two-loop shift in the W mass through a large anomalous dimension, providing a new indirect probe via electroweak precision observables.
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Renormalization of the SMEFT to Dimension Eight: Fermionic Interactions II
Computes one-loop mixing of bosonic and two-fermion interactions into two-fermion operators in dim-8 SMEFT, leaving only four-fermion to two-fermion mixing to finish the renormalization program.