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We review the effective field theories (EFTs) developed for few-nucleon systems. These EFTs are controlled expansions in momenta, where certain (leading-order) interactions are summed to all orders. At low energies, an EFT with only contact…

核理论 · 物理学 2009-11-07 P. F. Bedaque , U. van Kolck

Effective field theories (EFT) parameterize the long-distance effects of short-distance dynamics whose details may or may not be known. It is known that EFT coefficients must obey certain positivity constraints if causality and unitarity…

高能物理 - 理论 · 物理学 2021-06-16 Simon Caron-Huot , Vincent Van Duong

Hamiltonian Truncation Effective Theory is a framework that aims to improve the results of Hamiltonian truncation in a systematic, order-by-order fashion using Effective Field Theory methodology. The result is a truncated effective…

高能物理 - 理论 · 物理学 2025-07-30 Ekrem Demiray , Kara Farnsworth , Rachel Houtz

There are two canonical approaches to treating the Standard Model as an Effective Field Theory (EFT): Standard Model EFT (SMEFT), expressed in the electroweak symmetric phase utilizing the Higgs doublet, and Higgs EFT (HEFT), expressed in…

高能物理 - 唯象学 · 物理学 2021-08-11 Timothy Cohen , Nathaniel Craig , Xiaochuan Lu , Dave Sutherland

In the framework of the effective field theory (EFT) we discuss the electroweak (EW) corrections at LEP energies. We obtain the effective Lagrangian in the large m_t limit, and reproduce analytically the dominant EW corrections to the LEP2…

高能物理 - 唯象学 · 物理学 2009-10-31 A. A. Akhundov , J. Bernabeu , D. Gomez Dumm , A. Santamaria

One of the assumptions of simplified models is that there are a few new particles and interactions accessible at the LHC and all other new particles are heavy and decoupled. The effective field theory (EFT) method provides a consistent…

高能物理 - 唯象学 · 物理学 2021-05-05 Shekhar Adhikari , Ian M. Lewis , Matthew Sullivan

The LHC effective field theory working group gathers members of the LHC experiments and the theory community to provide a framework for the interpretation of LHC data in the context of EFT. In this note we discuss experimental observables…

高能物理 - 唯象学 · 物理学 2022-11-17 N. Castro , K. Cranmer , A. V. Gritsan , J. Howarth , G. Magni , K. Mimasu , J. Rojo , J. Roskes , E. Vryonidou , T. You

Effective field theories offer a powerful method to unify diverse models under a small set of control parameters, allowing systematic expansions around well-established theories. These techniques, developed in particle physics, were…

高能物理 - 理论 · 物理学 2025-10-02 Thomas Colas

A method to quantitatively assess the consistency of power-counting proposals in Effective Field Theories (EFT) which are non-perturbative at leading order is presented. The Renormalisation Group evolution of an observable predicts the…

核理论 · 物理学 2020-05-20 Harald W. Griesshammer

Effective field theory is an effective approach to parameterizing effects of high energy scale physics in low energy measurements. The two popular frameworks for physics beyond the standard model are the so-called standard model effective…

高能物理 - 唯象学 · 物理学 2025-08-01 Yi Liao , Xiao-Dong Ma , Yoshiki Uchida

We discuss the validity of the Standard Model Effective Field Theory (SM EFT) as the low-energy effective theory for the two-Higgs-doublet Model (2HDM). Using the up-to-date Higgs signal strength measurements at the LHC, one can obtain a…

高能物理 - 唯象学 · 物理学 2017-04-05 Hermès Bélusca-Maïto , Adam Falkowski , Duarte Fontes , Jorge C. Romão , João P. Silva

Debate topic for Effective Field Theory (EFT) is the choice of a "basis" for $\mrdim = 6$ operators Clearly all bases are equivalent as long as they are a "basis", containing a minimal set of operators after the use of equations of motion…

高能物理 - 唯象学 · 物理学 2016-11-01 Giampiero Passarino

The consistency relations in large scale structure relate the lower-order correlation functions with their higher-order counterparts. They are direct outcome of the underlying symmetries of a dynamical system and can be tested using data…

宇宙学与河外天体物理 · 物理学 2017-06-23 Dipak Munshi , Donough Regan

Promoting a theory with a finite number of terms into an effective field theory with an infinite number of terms worsens simplicity, predictability, falsifiability, and other attributes often favored in theory choice. However, the…

物理学史与哲学 · 物理学 2013-06-26 James D. Wells

Bayesian procedures designed to quantify truncation errors in perturbative calculations of quantum chromodynamics observables are adapted to expansions in effective field theory (EFT). In the Bayesian approach, such truncation errors are…

核理论 · 物理学 2016-05-12 R. J. Furnstahl , N. Klco , D. R. Phillips , S. Wesolowski

The Standard Model Effective Field Theory (SMEFT) is the parametrization chosen to interpret many modern measurements. We have recently discussed, building on the work of other groups, that its overall framework can be experimentally…

高能物理 - 唯象学 · 物理学 2023-01-11 Alexandre Salas-Bernardez , Juan J. Sanz-Cillero , Felipe J. Llanes-Estrada , Raquel Gomez-Ambrosio

We introduce an effective field theory (EFT) for conformal impurity by considering a pair of transversely displaced impurities and integrating out modes with mass inversely proportional to the separation distance. This EFT captures the…

高能物理 - 理论 · 物理学 2024-06-11 Oleksandr Diatlyk , Himanshu Khanchandani , Fedor K. Popov , Yifan Wang

We propose a parametrization of anomalous Higgs-boson couplings that is both systematic and practical. It is based on the electroweak chiral Lagrangian, including a light Higgs boson, as the effective field theory (EFT) at the electroweak…

高能物理 - 唯象学 · 物理学 2015-09-30 G. Buchalla , O. Cata , A. Celis , C. Krause

This note gives an overview of the tools for predicting expectations in the Standard Model effective field theory (SMEFT) at the tree level and one loop available through event generators. Methods of event reweighting, the separate…

These lectures are a pedagogical -- not comprehensive -- introduction to the applications of effective field theory in the context of nuclear and atomic physics. A common feature of these applications is the interplay between…

核理论 · 物理学 2019-02-11 U. van Kolck