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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

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

The observation of neutrino oscillations and masses motivates the extension of the standard model with right handed neutrinos, leading to heavy neutrino states possibly in the electroweak scale, which could be impacted by new high-scale…

高能物理 - 唯象学 · 物理学 2026-05-08 Gabriel Zapata , Tomás Urruzola , Oscar A. Sampayo , Lucía Duarte

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

We study the Standard Model effective field theory ($\nu$SMEFT) extended with operators involving right-handed neutrinos, focussing on the regime where the right-handed neutrinos decay promptly on collider scales to a photon and a Standard…

高能物理 - 唯象学 · 物理学 2021-02-03 Anke Biekötter , Mikael Chala , Michael Spannowsky

We demonstrate that measurements of the neutral-current Drell-Yan transverse momentum distribution binned in invariant mass are sensitive to unexplored dimension-8 parameters of the Standard Model Effective Field Theory (SMEFT). These…

高能物理 - 唯象学 · 物理学 2022-09-14 Radja Boughezal , Yingsheng Huang , Frank Petriello

The existence of Beyond Standard Model (BSM) physics is firmly suggested by both experimental observations (Dark Matter, neutrino masses) and theoretical arguments. In the hypothesis that the scale of new physics is considerably higher than…

高能物理 - 唯象学 · 物理学 2021-09-08 Luca Mantani

We present results from a global fit of Standard Model parameters and dimension-6 SMEFT Wilson coefficients that includes electroweak, Drell-Yan, Higgs-boson, top-quark, and flavour observables. Fits obtained by floating individual…

高能物理 - 唯象学 · 物理学 2026-03-16 J. de Blas , A. Goncalves , V. Miralles , L. Reina , L. Silvestrini , M. Valli

We study the potential of future Parity-Violating Electron Scattering (PVES) data to probe the parameter space of the Standard Model Effective Field Theory (SMEFT). We contrast the constraints derived from Drell-Yan data taken at the Large…

高能物理 - 唯象学 · 物理学 2021-07-14 Radja Boughezal , Frank Petriello , Daniel Wiegand

Employing the framework of the Standard Model Effective Field Theory, we perform a detailed reinterpretation of measurements of the Weinberg angle in dilepton production as a search for new-physics effects. We truncate our signal prediction…

高能物理 - 唯象学 · 物理学 2019-09-04 Stefan Alte , Matthias König , William Shepherd

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

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 study the phenomenology of physics beyond the Standard Model in long-baseline neutrino oscillation experiments using the most general parametrisation of heavy new physics in the framework of Standard Model Effective Theory (SMEFT), as…

高能物理 - 唯象学 · 物理学 2025-09-29 Joachim Kopp , Zahra Tabrizi , Salvador Urrea

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

We present a comprehensive strategy to isolate the effect of a class of chirality-breaking interactions in the Standard Model Effective Field Theory (SMEFT) by exploiting Drell-Yan angular analysis and the violation of the Lam-Tung…

高能物理 - 唯象学 · 物理学 2025-12-05 Samuele Grossi , Xu Li , Lorenzo Rolla , Riccardo Torre

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

The equations of motion for the Standard Model Effective Field Theory (SMEFT) differ from those in the Standard Model. Corrections due to local contact operators modify the equations of motion and impact matching results at sub-leading…

高能物理 - 唯象学 · 物理学 2018-12-26 Abdurrahman Barzinji , Michael Trott , Anagha Vasudevan

The Standard Model Effective Field Theory (SMEFT) provides a systematic framework to probe indirect effects of heavy new physics via precision measurements. While SMEFT constraints have been extensively studied using purely leptonic $Z$…

高能物理 - 唯象学 · 物理学 2026-05-13 Zijian Wang , Tianyi Yang , Tianyu Mu , Andrew Levin , Qiang Li

The discovery of neutrino oscillations and masses provides strong motivation to extend the Standard Model by including right-handed neutrinos, which lead to heavy neutrino states that could exist at the electroweak scale. These states may…

高能物理 - 唯象学 · 物理学 2025-05-19 Lucía Duarte , Daniel Chalençon Maisian , Tomás Urruzola

We study the potential of future Electron-Ion Collider (EIC) data to probe four-fermion operators in the Standard Model Effective Field Theory (SMEFT). The ability to perform measurements with both polarized electron and proton beams at the…

高能物理 - 唯象学 · 物理学 2021-08-12 Radja Boughezal , Frank Petriello , Daniel Wiegand