Results 31 to 40 of about 3,101 (165)
Journal of High Energy PhysicsThis paper presents a computer code for analyzing electroweak precision data (EWPD) in the framework of the Standard Model Effective Field Theory (SMEFT), highlights the importance of recent ATLAS and CMS precision measurements, and introduces a novel ...
Hannes Mildner
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
Total Drell–Yan in the flavorful SMEFT [PDF]
The European Physical Journal CWe perform a global analysis of Drell–Yan production of charged leptons and dineutrinos, the latter in missing energy plus jet events, in proton–proton collisions within the Standard Model Effective Field Theory (SMEFT).
Gudrun Hiller +2 more
semanticscholar +4 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, David London
exaly +2 more sources
Leading directions in the SMEFT
Journal of High Energy Physics, 2023 Short-distance new physics at (or slightly) above the TeV scale should not excessively violate the approximate flavor symmetries of the SM in order to comply with stringent constraints from flavor-changing neutral currents.
Ajdin Palavrić, Admir Greljo
core +4 more sources
Interpreting W mass measurements in the SMEFT [PDF]
Physics Letters B, 2016 Measurements of the W± mass (mW) provide an important consistency check of the Standard Model (SM) and constrain the possibility of physics beyond the SM.
Trott, Michael +4 more
core +6 more sources
The Higgs width in the SMEFT [PDF]
Journal of High Energy Physics, 2019 We calculate the total and partial inclusive Higgs widths at leading order in the Standard Model Effective Field Theory (SMEFT). We report results incorporating SMEFT corrections for two and four body Higgs decays through vector currents in this limit.
Tyler Corbett +5 more
core +8 more sources
Improving the global SMEFT picture with bounds on neutrino NSI
Journal of High Energy PhysicsWe analyze how neutrino oscillation and coherent elastic neutrino-nucleus scattering data impact the global SMEFT fit. We first review the mapping between the SMEFT parameters and the so-called NSI framework, commonly considered in the neutrino ...
Pilar Coloma +2 more
exaly +2 more sources
Journal of High Energy PhysicsWe investigate constraints on couplings of Standard Model effective field theory (SMEFT) operators contributing to Wtb effective vertex at tree level. We study the one-loop level impact of these couplings on the low-energy flavour changing charged and ...
Subhajit Kala +3 more
doaj +2 more sources
On the non-minimal character of the SMEFT [PDF]
Physics Letters B, 2017 When integrating out unknown new physics sectors, what is the minimal character of the Standard Model Effective Field Theory (SMEFT) that can result? In this paper we focus on a particular aspect of this question: “How can one obtain only one dimension ...
Yun Jiang, Michael Trott
doaj +2 more sources