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The conditions for the absence of gauge anomalies in effective field theories (EFT) are rivisited. General results from the cohomology of the BRST operator do not prevent potential anomalies arising from the non-renormalizable sector, when…

高能物理 - 唯象学 · 物理学 2021-04-27 Ferruccio Feruglio

We demonstrate the cancellation of chiral anomalies in the Standard Model Effective Field Theory (SM EFT), achieved through by a consistent choice of loop momentum routing in triangle diagrams with dimension-6 operator insertions. By…

高能物理 - 唯象学 · 物理学 2025-08-25 Dimitrios Beis , Athanasios Dedes

Heavy neutral gauge bosons arise in many motivated models of Beyond the Standard Model Physics. Experimental searches require that such gauge bosons are above the TeV scale in most models which means that the tools of effective field…

高能物理 - 唯象学 · 物理学 2024-07-25 Sally Dawson , Matthew Forslund , Marvin Schnubel

The Standard Model Effective Field Theory (SMEFT) provides a powerful, model-independent framework to explore deviations from the Standard Model (SM) by parametrising potential new physics through higher-dimensional operators. This thesis…

高能物理 - 唯象学 · 物理学 2026-02-06 Álvaro Díaz-Carmona

Standard Model Neutrino Effective Field Theory (SMNEFT) is an effective theory with Standard Model (SM) gauge-invariant operators constructed only from SM and right-handed neutrino fields. For the full set of dimension-six SMNEFT operators,…

高能物理 - 唯象学 · 物理学 2021-02-03 Alakabha Datta , Jacky Kumar , Hongkai Liu , Danny Marfatia

We assume that New Physics effects are parametrized within the Standard Model Effective Field Theory (SMEFT) written in a complete basis of gauge invariant operators up to dimension 6, commonly referred to as "Warsaw basis". We discuss all…

高能物理 - 唯象学 · 物理学 2019-05-14 A. Dedes , W. Materkowska , M. Paraskevas , J. Rosiek , K. Suxho

The Standard Model effective field theory (SMEFT) is the tool of choice for studying deviations of Higgs couplings from the Standard Model predictions. The SMEFT is an expansion in an infinite tower of higher dimension operators, which is…

高能物理 - 唯象学 · 物理学 2023-05-12 Sally Dawson , Duarte Fontes , Samuel Homiller , Matthew Sullivan

The anomalous dimensions of dimension-six operators in the Standard Model Effective Field Theory (SMEFT) respect holomorphy to a large extent. The holomorphy conditions are reminiscent of supersymmetry, even though the SMEFT is not a…

高能物理 - 唯象学 · 物理学 2015-07-31 Rodrigo Alonso , Elizabeth E. Jenkins , Aneesh V. Manohar

The Standard Model Effective Field Theory (SMEFT) provides a consistent framework for comparing precision measurements at the LHC to the Standard Model. The observation of statistically significant non-zero SMEFT coefficients would…

高能物理 - 唯象学 · 物理学 2021-04-27 Sally Dawson , Samuel Homiller , Samuel D. Lane

We classify the physical operators of the most general bosonic effective gauge theory up to dimension six using on-shell methods. Based on this classification, we compute the complete one-loop anomalous dimension employing both on-shell…

高能物理 - 唯象学 · 物理学 2026-05-29 Jason Aebischer , Luigi C. Bresciani , Nudzeim Selimovic

The Standard Model Effective Field Theory (SMEFT) provides a powerful theoretical framework for searching for subtle deviations from the Standard Model. In this talk, we present the results from a global fit of the dimension-6 operators of…

高能物理 - 唯象学 · 物理学 2022-12-02 Maeve Madigan

The Standard Model Effective Field Theory (SMEFT) provides a robust framework for probing deviations in the couplings of Standard Model particles from their theoretical predictions. This framework relies on an expansion in…

高能物理 - 唯象学 · 物理学 2025-01-22 Nilabhra Adhikary , Tisa Biswas , Joydeep Chakrabortty , Christoph Englert , Michael Spannowsky

We derive bounds on couplings in the standard model effective field theory (SMEFT) as a consequence of causality and the analytic structure of scattering amplitudes. In the SMEFT, there are 64 independent operators at mass dimension eight…

高能物理 - 唯象学 · 物理学 2020-09-16 Grant N. Remmen , Nicholas L. Rodd

We present a complete list of the independent dimension-7 operators that are constructed using the Standard Model degrees of freedom and are invariant under the Standard Model gauge group. This list contains only 20 independent operators;…

高能物理 - 唯象学 · 物理学 2014-12-30 Landon Lehman

The Standard Model Effective Field Theory (SMEFT) is a universal way of parametrizing New Physics (NP) manifesting as new, heavy particle interactions with the Standard Model (SM) degrees of freedom, that respect the SM gauged symmetries.…

高能物理 - 唯象学 · 物理学 2024-03-14 Luiz Vale Silva

The striking success of the Standard Model in explaining precision data and, at the same time, its lack of explanations for various fundamental phenomena, such as dark matter or the baryon asymmetry of the universe, suggests new physics at…

高能物理 - 唯象学 · 物理学 2025-04-23 Gino Isidori , Felix Wilsch , Daniel Wyler

We compute the one-loop corrections to $Z$ decay properties from dimension-6 operators in the Standard Model Effective Field Theory (SMEFT) that contribute also to anomalous 3-gauge boson couplings and examine the relative sensitivity of…

高能物理 - 唯象学 · 物理学 2018-11-14 Sally Dawson , Ahmed Ismail

Nowadays, the Standard Model Effective Field Theory (SMEFT) provides a standard framework to parameterize potential deviations from the Standard Model and to combine information from multiple processes in global analyses. This review…

高能物理 - 唯象学 · 物理学 2026-03-19 A. Aleshko , E . Boos , V. Bunichev , L. Dudko

Focusing on four-Higgs interactions, we analyse the robustness of tree-level-derived positivity bounds on Standard Model effective field theory (SMEFT) operators under quantum corrections. Among other results, we demonstrate that: (i) Even…

高能物理 - 唯象学 · 物理学 2022-06-29 Mikael Chala , Jose Santiago

With no direct evidence for new physics at the TeV scale, deviations from the Standard Model (SM) can be explored systematically through Effective Field Theories (EFTs) such as the Standard Model EFT (SMEFT). SMEFT extends the SM by…

高能物理 - 实验 · 物理学 2026-02-04 Dongwon Kim
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