中文
相关论文

相关论文: SmeftFR v3 -- Feynman rules generator for the Stan…

200 篇论文

It is not only conceivable but likely that the spectrum of physics beyond the Standard Model (SM) is non-degenerate. The lightest non-SM particle may reside close enough to the electroweak scale that it can be kinematically probed at…

高能物理 - 唯象学 · 物理学 2021-02-03 Upalaparna Banerjee , Joydeep Chakrabortty , Suraj Prakash , Shakeel Ur Rahaman , Michael Spannowsky

We develop a demonstrator foundation model for collider-scale explorations of the Standard Model Effective Field Theory (SMEFT), constructed from contrastive representations of theoretically simulated neutral-current Drell-Yan cross…

高能物理 - 唯象学 · 物理学 2025-12-19 Supratim Das Bakshi , T. J. Hobbs , Brandon Kriesten

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

Even if some experimental evidence suggests the existence of physics beyond the SM, no clues of new resonances can be found in the data. In the case their masses are much larger than the energies of current experiments, the SMEFT formalism…

高能物理 - 唯象学 · 物理学 2025-11-18 Matteo Maltoni

The ongoing Effective Field Theory (EFT) program at the LHC and elsewhere is motivated by streamlining the connection between experimental data and UV-complete scenarios of heavy new physics beyond the Standard Model (BSM). This connection…

高能物理 - 唯象学 · 物理学 2024-05-24 Jaco ter Hoeve , Giacomo Magni , Juan Rojo , Alejo N. Rossia , Eleni Vryonidou

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

Effective Field Theories (EFTs) are the primary tool for interpreting precision collider data in the absence of new resonances. However, in the dimension-8 Standard Model Effective Field Theory (SMEFT), the utility of traditional…

高能物理 - 唯象学 · 物理学 2026-03-05 Leonardo P. G. De Assis

In recent times, SMEFT, along with a superlative repertoire of theoretical and computational tools, has emerged as an efficacious platform to test the viability of proposed BSM scenarios. With symmetry as the backbone, higher mass…

高能物理 - 唯象学 · 物理学 2022-09-07 Wrishik Naskar , Suraj Prakash , Shakeel Ur Rahaman

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

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

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

New physics interactions beyond the Standard Model can make themselves known as small corrections to Standard Model reactions. There is a diverse array of proposals for new physics, and so any parametrization of those effects must be as…

高能物理 - 唯象学 · 物理学 2020-03-12 Michael E. Peskin

We write down a geometric realization of the Standard Model Effective Field Theory (SMEFT) extended by $n_f$ flavours of light sterile neutrinos, a so-called geo$\nu$SMEFT. As with the geoSMEFT introduced by Helset, Martin and Trott, we…

高能物理 - 唯象学 · 物理学 2023-08-22 Jim Talbert

We study whether higher-dimensional operators in effective field theories, in particular in the Standard Model Effective Field Theory (SMEFT), can source gauge anomalies via the modification of the interactions involved in triangle…

高能物理 - 唯象学 · 物理学 2021-06-30 Quentin Bonnefoy , Luca Di Luzio , Christophe Grojean , Ayan Paul , Alejo N. Rossia

The Standard Model effective field theory (SMEFT) provides a general framework to include the dynamics of the beyond standard model physics residing at a certain higher energy scale $\Lambda$. We study the top-quark production along with a…

高能物理 - 唯象学 · 物理学 2022-12-07 Monoranjan Guchait , Arnab Roy

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 present a map between the tree-level Standard Model Effective Theory (SMEFT) in the Warsaw basis and massive on-shell amplitudes. As a first step, we focus on the electroweak sector without fermions. We describe the Feynman rules for a…

高能物理 - 唯象学 · 物理学 2020-01-29 Rafael Aoude , Camila S. Machado

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

Deviations from the Standard Model (SM) can be parameterized in terms of the SM effective field theory (SMEFT), which is typically truncated at dimension-6. Including higher dimension operators -- as well as considering simultaneous…

高能物理 - 唯象学 · 物理学 2024-02-16 Konstantin Asteriadis , Sally Dawson , Duarte Fontes

We investigate the bounds which can be placed on generic new-physics contributions to dijet production at the LHC using the framework of the Standard Model Effective Field Theory, deriving the first consistently-treated EFT bounds from…

高能物理 - 唯象学 · 物理学 2018-02-14 Stefan Alte , Matthias König , William Shepherd