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相关论文: Theoretical developments in the SMEFT at dimension…

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We calculate the gauge terms of the one-loop anomalous dimension matrix for the dimension-six operators of the Standard Model effective field theory (SM EFT). Combining these results with our previous results for the $\lambda$ and Yukawa…

高能物理 - 唯象学 · 物理学 2024-06-14 Rodrigo Alonso , Elizabeth E. Jenkins , Aneesh V. Manohar , Michael Trott

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

Probing heavy new physics beyond the Standard Model (SM) increasingly relies on global effective field theory (EFT) likelihoods. We introduce differentiable, multi-scale EFT likelihoods that combine renormalization-group evolution,…

高能物理 - 唯象学 · 物理学 2026-03-18 Aleks Smolkovič , Peter Stangl

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

We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM). Starting from the EFT where the SM is extended by dimension-6 operators,…

高能物理 - 唯象学 · 物理学 2016-09-08 Roberto Contino , Adam Falkowski , Florian Goertz , Christophe Grojean , Francesco Riva

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

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

We report codes for the Standard Model Effective Field Theory (SMEFT) in FeynRules -- the SMEFTsim package. The codes enable theoretical predictions for dimension six operator corrections to the Standard Model using numerical tools, where…

高能物理 - 唯象学 · 物理学 2019-08-12 Ilaria Brivio , Yun Jiang , Michael Trott

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 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 shift in focus towards searches for physics beyond the Standard Model (SM) employing model-independent Effective Field Theory (EFT) methods necessitates a rigorous approach to matching to guarantee the validity of the obtained results…

高能物理 - 唯象学 · 物理学 2023-03-29 Upalaparna Banerjee , Joydeep Chakrabortty , Christoph Englert , Shakeel Ur Rahaman , Michael Spannowsky

We investigate the impact of effective interactions of dimension-8 (dim-8) operators in the standard model effective field theory (SMEFT) on neutral meson mixing, focusing on the $K^0-\bar K^0$, $B_{d,s}-\bar B_{d,s}$, and $D^0-\bar D^0$…

高能物理 - 唯象学 · 物理学 2025-03-11 Yi Liao , Xiao-Dong Ma , Hao-Lin Wang

We study the inclusion of $\mathcal O(1/\Lambda^4)$ effects in the Standard Model Effective Field Theory in fits to the current Drell-Yan data at the LHC. Our analysis includes the full set of dimension-6 and dimension-8 operators…

高能物理 - 唯象学 · 物理学 2022-05-11 Radja Boughezal , Emanuele Mereghetti , Frank Petriello

The Two-Higgs Doublet Model (2HDM) is a well understood alternative to the Standard Model of particle physics. If the new particles included in the 2HDM are at an energy scale much greater than the weak scale, the theory can be matched to…

高能物理 - 唯象学 · 物理学 2024-04-15 Supratim Das Bakshi , Sally Dawson , Duarte Fontes , Samuel Homiller

We present the basis of dimension-eight operators associated with universal theories. We first derive a complete list of independent dimension-eight operators formed with the Standard Model bosonic fields characteristic of such universal…

高能物理 - 唯象学 · 物理学 2025-08-28 Tyler Corbett , Jay Desai , O. J. P. Eboli , M. C. Gonzalez-Garcia

Despite the remarkable success of the Standard Model in describing fundamental interactions, unresolved phenomena such as dark matter, dark energy, and matter-antimatter asymmetry strongly suggest the existence of physics beyond the…

高能物理 - 唯象学 · 物理学 2026-05-05 Michał Ryczkowski

In this work we consider the Standard Model Effective Field Theory extended with right-handed neutrinos, the $\nu$SMEFT, and calculate the full set of one-loop anomalous dimensions that are proportional to Yukawa couplings. These…

高能物理 - 唯象学 · 物理学 2024-08-06 Marco Ardu , Xabier Marcano

Finding all possible UV resonances of effective operators is an important task in the bottom-up approach of effective field theory. We present all the tree-level UV resonances for the dimension-5, -6 and -7 operators in the Standard Model…

高能物理 - 唯象学 · 物理学 2023-07-21 Xu-Xiang Li , Zhe Ren , Jiang-Hao Yu

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 complete set of one-loop anomalous dimensions for general Effective Field Theories (EFTs) is derived using on-shell methods. Combined with previous findings for the bosonic sector, the obtained results conclude the computation of the…

高能物理 - 唯象学 · 物理学 2025-12-19 Jason Aebischer , Luigi C. Bresciani , Nudzeim Selimovic