Results 1 to 10 of about 1,585 (136)
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 +2 more
exaly +7 more sources
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 +4 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 +3 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 +4 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
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 +2 more
exaly +2 more sources
Renormalisation group effects on SMEFT interpretations of LHC data
Journal of High Energy Physics, 2023 We explore the impact of Renormalisation Group (RG) effects in the Standard Model Effective Field Theory (SMEFT) interpretations of LHC measurements.
Rafael Aoude +2 more
exaly +2 more sources
Renormalization group equations for the SMEFT operators up to dimension seven
Journal of High Energy Physics, 2023 In this paper, we propose a Green’s basis and also a new physical basis for dimension-seven (dim-7) operators, which are suitable for the matching of ultraviolet models onto the Standard Model effective field theory (SMEFT) and the deviation of ...
Di Zhang
exaly +2 more sources
Dimension-8 SMEFT matching conditions for the low-energy effective field theory
Journal of High Energy Physics, 2023 In particle physics, the modern view is to categorize things in terms of effective field theories (EFTs). Above the weak scale, we have the SMEFT, formed when the heavy new physics (NP) is integrated out, and for which the Standard Model (SM) is the ...
Jacky Kumar +2 more
exaly +2 more sources