Results 1 to 10 of about 3,101 (165)
Analytic results for electroweak precision observables at NLO in SMEFT [PDF]
Journal of High Energy PhysicsWe present analytic results for electroweak precision observables (EWPO) at next-to-leading order (NLO) in dimension-six SMEFT, with no assumptions on the flavour structure of SMEFT Wilson coefficients. The results are given in five different electroweak
Benjamin Pecjak, Anke Biekoetter
exaly +7 more sources
Renormalisation group evolution effects on global SMEFT analyses [PDF]
Journal of High Energy PhysicsGlobal analyses in the Standard Model Effective Field Theory (SMEFT) framework serve as a tool to probe potential directions of new physics. To break degeneracies between the Wilson coefficients of the SMEFT, it is essential to combine observables from ...
Hurth Tobias +2 more
exaly +4 more sources
Uniting low-energy semileptonic and hadronic anomalies within SMEFT [PDF]
Journal of High Energy PhysicsTwo categories of four-fermion SMEFT operators are semileptonic (two quarks and two leptons) and hadronic (four quarks). At tree level, an operator of a given category contributes only to processes of the same category.
Alakabha Datta +2 more
exaly +3 more sources
Mapping the SMEFT to discoverable models
Journal of High Energy Physics, 2022 The matching of specific new physics scenarios onto the SMEFT framework is a well-understood procedure. The inverse problem, the matching of the SMEFT to UV scenarios, is more difficult and requires the development of new methods to perform a systematic ...
Martin Hirsch +2 more
exaly +2 more sources
Two-loop anomalous dimensions for baryon-number-violating operators in SMEFT [PDF]
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
doaj +2 more sources
Probing the flavour-blind SMEFT: EFT validity and the interplay of energy scales [PDF]
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
doaj +2 more sources
Mapping the SMEFT at high-energy colliders: from LEP and the (HL-)LHC to the FCC-ee [PDF]
Journal of High Energy PhysicsWe present SMEFiT3.0, an updated global SMEFT analysis of Higgs, top quark, and diboson production data from the LHC complemented by electroweak precision observables (EWPOs) from LEP and SLD.
Luca Mantani +2 more
exaly +2 more sources
Two-loop running in the bosonic SMEFT using functional methods [PDF]
Journal of High Energy PhysicsThe next goalpost in precision calculations for physics beyond the Standard Model is determining the two-loop renormalization group (RG) equations in the Standard Model Effective Field Theory (SMEFT).
Anders Eller Thomsen +1 more
exaly +2 more sources
SIMUnet: an open-source tool for simultaneous global fits of EFT Wilson coefficients and PDFs [PDF]
European Physical Journal C: Particles and FieldsWe present the open-source SIMUnet code, designed to fit Standard Model Effective Field Theory (SMEFT) Wilson coefficient alongside Parton Distribution Functions (PDFs) of the proton. SIMUnet can perform SMEFT global fits, as well as simultaneous fits of
PBSP Collaboration +8 more
doaj +2 more sources
A global analysis of axion-like particle interactions using SMEFT fits
Journal of High Energy Physics, 2023 In the presence of axions or axion-like particles (ALPs) that couple to the Standard Model via dimension-five interactions, dimension-six SMEFT interactions are generated via renormalization-group evolution.
Matthias Neubert +1 more
exaly +2 more sources