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Dismissing traditional naturalness concerns while embracing the Higgs boson mass measurement and unification motivates careful analysis of trans-TeV supersymmetric theories. We take an effective field theory (EFT) approach, matching the…

高能物理 - 唯象学 · 物理学 2018-07-04 James D. Wells , Zhengkang Zhang

Charged lepton flavour-violating (cLFV) processes, which are definite proof of new physics beyond the Standard Model, have remained elusive experimentally till now. Effective Field Theory (EFT) has been very useful in providing information…

高能物理 - 唯象学 · 物理学 2026-01-06 Utpal Chattopadhyay , Debottam Das , Rahul Puri , Joydeep Roy

The $U(3)^5$ symmetry within the SMEFT framework restricts the inclusion of only fully flavor-conserving operators at dimension six. This proceeding presents a global analysis of the SMEFT under this assumption. We provide global…

高能物理 - 唯象学 · 物理学 2024-05-17 Riccardo Bartocci

The Standard Model Effective Field Theory (SMEFT) is a powerful tool to search for new physics in a model-independent way. We explore the synergies arising from different types of observables in a combined, global SMEFT fit. Specifically,…

高能物理 - 唯象学 · 物理学 2023-07-13 Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger , Lara Nollen

We apply the covariant derivative expansion of the Coleman-Weinberg potential to the sfermion sector in the minimal supersymmetric standard model, matching it to the relevant dimension-6 operators in the standard model effective field…

高能物理 - 唯象学 · 物理学 2018-04-25 Ran Huo

Pretrained Foundation Models (PFMs) have transformed numerous applications by enabling efficient adaptation to customized tasks. Parameter-Efficient Fine-Tuning (PEFT) has emerged as a resource-efficient alternative to full fine-tuning,…

机器学习 · 计算机科学 2025-06-16 Baoquan Zhang , Guangning Xu , Michael. K. Ng

This report presents the results of the Models and Effective Field Theories Subgroup of the Off-Shell Interpretations Task Force in the LHC Higgs Working Group. The main goal of the subgroup was to discuss and advance the potential impact…

We perform a systematic study of lepton-number-violating (LNV) dimension-9 operators in the Standard Model Effective Field Theory (SMEFT) that can mediate neutrinoless double beta decay ($0\nu\beta\beta$) at tree level, and map them to…

高能物理 - 唯象学 · 物理学 2026-02-23 Fabian Esser , Lukáš Gráf , Chandan Hati

There is increasing need to assess the impact and the interpretation of dim = 6 and dim = 8 operators within the context of the Standard Model Effective Field Theory (SMEFT). The observational and mathematical consistency of a construct…

高能物理 - 唯象学 · 物理学 2019-02-07 Giampiero Passarino

We explore new EFT operators where single new exotic states interact with the Standard Model through an asymmetric Standard Model portal with couplings to at least one quark and one W boson. Effective operators up to dimension 6 are…

高能物理 - 唯象学 · 物理学 2025-12-09 Linda M. Carpenter , Katherine Schwind , Taylor Murphy

An algorithm for the automatic Feynman diagram (FD) generation is presented in this paper. The algorithm starts directly from the definition formula of FD, and is simple in concept and easy for coding. The symmetry factor for each FD is…

高能物理 - 唯象学 · 物理学 2013-05-14 Bo Xiao , Hao Wang , Shou-hua Zhu

FeAmGen.jl is a Julia package designed to generate Feynman diagrams and their corresponding amplitudes for various processes in particle physics. Utilizing the models in the Universal Feynman Output (UFO) format and Qgraf for diagram…

高能物理 - 唯象学 · 物理学 2024-05-10 Quan-feng Wu , Zhao Li

The analytical package written in FORM presented in this paper allows the computation of the complete set of Feynman Rules producing the Rational terms of kind R2 contributing to the virtual part of NLO amplitudes in the Standard Model of…

高能物理 - 唯象学 · 物理学 2011-03-28 M. V. Garzelli , I. Malamos

Using background-field method and super-heat-kernel expansion, we derive a master formula for the one-loop UV divergences of the bosonic dimension-6 operators in Standard Model Effective Field Theory (SMEFT). This approach reduces the…

高能物理 - 唯象学 · 物理学 2019-04-17 Gerhard Buchalla , Alejandro Celis , Claudius Krause , Jan-Niklas Toelstede

We introduce Scale Factorized-Quantum Field Theory (SF-QFT), a framework performing path-integral factorization of ultraviolet and infrared momentum modes at a physical scale $Q^*$ before perturbative expansion through Effective Dynamical…

高能物理 - 唯象学 · 物理学 2026-03-23 Farrukh A. Chishtie

We present a comprehensive analysis of dimension-8 and dimension-6 effects in fully leptonic $WZ$ and $WW$ production at the Large Hadron Collider (LHC) within the Standard Model (SM) Effective Field Theory (SMEFT). We focus on dimension-8…

高能物理 - 唯象学 · 物理学 2025-11-07 Hesham El Faham , Giuseppe Ventura , Eleni Vryonidou

We construct new dispersive sum rules for the effective field theory of the standard model at mass dimension six. These spinning sum rules encode information about the spin of UV states: the sign of the IR Wilson coefficients carries a…

高能物理 - 唯象学 · 物理学 2022-09-08 Grant N. Remmen , Nicholas L. Rodd

The precise measurement of the Higgs boson properties requires a robust framework to parametrize possible deviations from Standard Model (SM) predictions in the most model-independent way possible. The Effective Field Theory (EFT) framework…

高能物理 - 唯象学 · 物理学 2026-03-03 Ramona Gröber , Alejo N. Rossia , Michał Ryczkowski

Effective field theories (EFT) are commonly used to parameterize effects of BSM physics in vector boson scattering (VBS). For Wilson coefficients which are large enough to produce presently observable effects, the validity range of the EFT…

高能物理 - 唯象学 · 物理学 2021-08-18 Jannis Lang , Stefan Liebler , Heiko Schäfer-Siebert , Dieter Zeppenfeld

We study the electroweak first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena can be probed independently via…

高能物理 - 唯象学 · 物理学 2025-12-05 Sahabub Jahedi , Indrajit Saha , Abhik Sarkar