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相关论文: Staying on Top of SMEFT-Likelihood Analyses

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We present a global analysis of the Higgs and electroweak sector, in the SMEFT framework and matched to a UV-completion. As the UV-model we use the triplet extension of the electroweak gauge sector. The matching is performed at one loop,…

We perform an updated fit to LHC Higgs data and LEP electroweak precision tests in the framework of the Standard Model Effective Field Theory (SMEFT). We assume a generic structure of the SMEFT operators without imposing any flavour…

高能物理 - 唯象学 · 物理学 2020-05-20 Adam Falkowski , David Straub

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 search for effective field theory deformations of the Standard Model (SM) is a major goal of particle physics that can benefit from a global approach in the framework of the Standard Model Effective Field Theory (SMEFT). For the first…

高能物理 - 唯象学 · 物理学 2021-05-19 John Ellis , Maeve Madigan , Ken Mimasu , Veronica Sanz , Tevong You

Global SMEFT analyses have become a key interpretation framework for LHC physics, quantifying how well a large set of kinematic measurements agrees with the Standard Model. This agreement is encoded in measured Wilson coefficients and their…

高能物理 - 唯象学 · 物理学 2024-01-31 Ilaria Brivio , Sebastian Bruggisser , Nina Elmer , Emma Geoffray , Michel Luchmann , Tilman Plehn

We present a global interpretation of Higgs, diboson, and top quark production and decay measurements from the LHC in the framework of the Standard Model Effective Field Theory (SMEFT) at dimension six. We constrain simultaneously 36…

This is a brief summary of the latest searches for virtual effects of new physics in the top sector. In the framework of the Standard Model Effective Field Theory (SMEFT), I show how to resolve the structure of effective couplings by…

高能物理 - 唯象学 · 物理学 2021-02-10 Susanne Westhoff

A global analysis of the Standard Model Effective Field Theory (SMEFT) with SFitter is performed using measurements of single top quark production and top quark decay processes from ATLAS and CMS at center-of-mass energies of 7, 8 and 13…

高能物理 - 唯象学 · 物理学 2019-05-10 Rhea Moutafis

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

The framework of standard model effective field theory (SMEFT) provides a relatively model-agnostic tool with which to parameterize the off-shell effects of potential heavy new physics. In the top quark sector, the ATLAS and CMS experiments…

高能物理 - 实验 · 物理学 2023-11-22 Kelci Mohrman

We provide a comprehensive global analysis of Run II top measurements at the LHC in terms of dimension-6 operators. A distinctive feature of the top sector as compared to the Higgs-electroweak sector is the large number of four-quark…

高能物理 - 唯象学 · 物理学 2020-03-18 I. Brivio , S. Bruggisser , F. Maltoni , R. Moutafis , T. Plehn , E. Vryonidou , S. Westhoff , C. Zhang

I discuss recent progress on fits to dimension-six operators in the Standard Model Effective Theory (SMEFT). I focus on the top quark sector of the SMEFT, as well as the theoretical advances made in computing SMEFT effects through to…

高能物理 - 唯象学 · 物理学 2019-06-26 Emma Slade

The ATLAS and CMS collaborations have recently released significant new data on Higgs and diboson production in LHC Run 2. Measurements of Higgs properties have improved in many channels, while kinematic information for $h \to \gamma\gamma$…

高能物理 - 唯象学 · 物理学 2018-08-01 John Ellis , Christopher W. Murphy , Verónica Sanz , Tevong You

I detail an optimistic future vision for the use of SMEFT at high-energy colliders, and describe the use of the studies which could result for interpretation of future models. I also explore some of the potential pitfalls which could…

高能物理 - 唯象学 · 物理学 2022-03-16 William Shepherd

A brief introduction to strong Higgs sector i.e. the possibility of breaking electroweak symmetry without an elementary Higgs is given. Constraints from present LEP data are studied and the discovery potential of future colliders…

高能物理 - 唯象学 · 物理学 2007-05-23 Pierre Chiappetta

Precise measurements of SM particles properties at the LHC allows to look for heavy New Physics in the context of an Effective Field Theory (EFT). These searches, however, often rely on kinematic regions where the validity of the EFT may be…

高能物理 - 唯象学 · 物理学 2015-09-16 Martin Gorbahn , Jose Miguel No , Veronica Sanz

Studies of the boosted sector in top-quark physics have known a fast-growing development with the arrival of high-energy data at LHC. This short review summarizes the current status of the boosted top-tagging techniques in ATLAS and CMS and…

高能物理 - 实验 · 物理学 2016-12-06 Julien Caudron

In these proceedings we present the latest developments in our effort to include vector boson scattering (VBS) measurements into global SMEFT fits of LHC data. We present some updates to our initial study of arXiv:2101.03180 as well as…

高能物理 - 唯象学 · 物理学 2021-11-01 Raquel Gomez-Ambrosio , Giacomo Magni

The electroweak symmetry-breaking sector is one of the most promising and uncharted parts of the Standard Model; but it seems likely that new electroweak physics may be out of reach of the present accelerator effort and the hope is to…

高能物理 - 唯象学 · 物理学 2023-09-13 Raquel Gomez-Ambrosio , Felipe J. Llanes-Estrada , Alexandre Salas-Bernardez , Juan J. Sanz-Cillero

We perform a model-independent analysis of top-philic New Physics scenarios, under the assumption that only effective operators involving top quarks are generated at tree level. Within the SMEFT framework, we derive indirect constraints on…

高能物理 - 唯象学 · 物理学 2024-02-20 Francesco Garosi , David Marzocca , Antonio Rodríguez Sánchez , Alfredo Stanzione
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