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The accuracy of $V_{ud}$ determinations from superallowed $\beta$ decays critically hinges on control over radiative corrections. Recently, substantial progress has been made on the single-nucleon, universal corrections, while…

高能物理 - 唯象学 · 物理学 2024-11-20 Vincenzo Cirigliano , Wouter Dekens , Jordy de Vries , Stefano Gandolfi , Martin Hoferichter , Emanuele Mereghetti

In these proceedings we present the main results of [arXiv:2311.04280 [hep-ph]], where we explore the phenomenological implications of multi-Higgs boson production through longitudinal vector boson scattering within the framework of…

From the embedding of the Standard Model Effective Field Theory (SMEFT) in the more general Higgs Effective Field Theory (HEFT), we expose correlations among the coefficients of the latter that, if found to be violated in future data, would…

Effective Field Theories such as HEFT, organized as momentum expansions, are a controllable approximation to strong dynamics only near threshold, as they miss exact elastic unitarity, reducing their predictive power at a higher scale if…

高能物理 - 唯象学 · 物理学 2021-12-02 Alexandre Salas-Bernárdez

We point out that an unnatural hierarchy between certain higher-dimensional operator coefficients in a low-energy Effective Field Theory (EFT) would automatically imply that the Higgs' vacuum expectation value is hierarchically smaller than…

高能物理 - 唯象学 · 物理学 2023-08-14 Joe Davighi , Scott Melville , Ken Mimasu , Tevong You

We use an effective field theory (EFT) which includes all possible gluon-Higgs dimension-5 and dimension-7 operators to study Higgs boson plus jet production in next-to-leading order QCD. The EFT sheds light on the effect of a finite top…

高能物理 - 唯象学 · 物理学 2014-11-27 S. Dawson , I. M. Lewis , Mao Zeng

The virtues of an effective field theory (EFT) approach to many-body problems are illustrated by deriving the expansion for the energy of an homogeneous, interacting Fermi gas at low density and zero temperature. A renormalization scheme…

核理论 · 物理学 2009-11-06 H. -W. Hammer , R. J. Furnstahl

For large values of the Higgs mass the low energy structure of the gauged linear sigma model in the spontaneously broken phase can adequately be described by an effective field theory. We present a manifestly gauge-invariant functional…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Nyffeler , A. Schenk

The application of the effective field theory (EFT) method to nuclear systems is reviewed. The roles of degrees of freedom, QCD symmetries, power counting, renormalization, and potentials are discussed. EFTs are constructed for various…

核理论 · 物理学 2008-11-26 U. van Kolck

The Standard Model Effective Field Theory (SMEFT) theoretical framework is increasingly used to interpret particle physics measurements and constrain physics beyond the Standard Model. We investigate the truncation of the effective-operator…

高能物理 - 唯象学 · 物理学 2020-12-02 Chris Hays , Andreas Helset , Adam Martin , Michael Trott

Effective field theory is applied to finite-density systems with an unnaturally large scattering length, such as neutron matter. A new organizational scheme is identified and connected with an expansion in inverse powers of the number of…

核理论 · 物理学 2007-05-23 James V. Steele

The production of $W^{\pm}H$, $ZH$, $W^+W^-$, and $W^\pm Z$ pairs probes non-Standard-Model interactions of quarks, gauge bosons, and the Higgs boson. New effects can be parameterized in terms of an effective field theory (EFT) where the…

高能物理 - 唯象学 · 物理学 2020-08-31 Julien Baglio , Sally Dawson , Samuel Homiller , Samuel D. Lane , Ian M. Lewis

We derive the general counting rules for a quantum effective field theory (EFT) in $\mathsf{d}$ dimensions. The rules are valid for strongly and weakly coupled theories, and predict that all kinetic energy terms are canonically normalized.…

高能物理 - 唯象学 · 物理学 2016-09-12 M. B. Gavela , E. E. Jenkins , A. V. Manohar , L. Merlo

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 (EFTs) of heavy particles coupled to the inflaton are rife with operator redundancies, frequently obscured by sensitivity to both boundary terms and field redefinitions. We initiate a systematic study of these…

高能物理 - 唯象学 · 物理学 2025-08-08 Nathaniel Craig , Soubhik Kumar , Amara McCune

Composite Higgs and neutral-naturalness models are popular scenarios in which the Higgs boson is a pseudo Nambu-Goldstone boson, and naturalness problem is addressed by composite top partners. Since the standard model effective field theory…

高能物理 - 唯象学 · 物理学 2019-10-02 Hao-Lin Li , Ling-Xiao Xu , Jiang-Hao Yu , Shou-Hua Zhu

I review the main features of the effective field theory (EFT) behind scenarios of dynamical electroweak symmetry breaking, placing particular emphasis on the systematics and the parallels that can be drawn with Chiral Perturbation Theory.…

高能物理 - 唯象学 · 物理学 2015-12-23 Oscar Cata

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

In this work, we study the renormalization-group evolution of parameters in the three-dimensional effective field theory (3D EFT) that describes the thermally driven electroweak phase transition of the Higgs field. We consider tree-level…

高能物理 - 唯象学 · 物理学 2026-03-18 Mikael Chala , Andrii Dashko , Guilherme Guedes

Non-decoupling effects of heavy new particles cannot be described by the standard effective field theory with finite truncation of higher dimensional operators. We propose a new effective field theory in which non-decoupling quantum effects…

高能物理 - 唯象学 · 物理学 2022-04-13 Shinya Kanemura , Ryo Nagai