English
Related papers

Related papers: WCxf: an exchange format for Wilson coefficients b…

200 papers

We present an alternative method for carrying out a principal-component analysis of Wilson coefficients in standard model effective field theory (SMEFT). The method is based on singular-value decomposition (SVD). The SVD method provides…

High Energy Physics - Phenomenology · Physics 2020-07-03 Geoffrey T. Bodwin , Hee Sok Chung

We calculate the complete tree and one-loop matching of the dimension 6 Standard Model Effective Field Theory (SMEFT) with unbroken $U(3)^5$ flavour symmetry to the operators of the Weak Effective Theory (WET) which are responsible for…

High Energy Physics - Phenomenology · Physics 2019-07-02 Tobias Hurth , Sophie Renner , William Shepherd

We explore the impact of Renormalisation Group (RG) effects in the Standard Model Effective Field Theory (SMEFT) interpretations of LHC measurements. We implement the RG running and mixing for the Wilson coefficients as obtained from the…

High Energy Physics - Phenomenology · Physics 2023-03-21 Rafael Aoude , Fabio Maltoni , Olivier Mattelaer , Claudio Severi , Eleni Vryonidou

The ongoing Effective Field Theory (EFT) program at the LHC and elsewhere is motivated by streamlining the connection between experimental data and UV-complete scenarios of heavy new physics beyond the Standard Model (BSM). This connection…

High Energy Physics - Phenomenology · Physics 2024-05-24 Jaco ter Hoeve , Giacomo Magni , Juan Rojo , Alejo N. Rossia , Eleni Vryonidou

We present version 3 of SmeftFR, a Mathematica package designed to generate the Feynman rules for the Standard Model Effective Field Theory (SMEFT) including the complete set of gauge invariant operators up to dimension-6 and the complete…

High Energy Physics - Phenomenology · Physics 2023-10-16 A. Dedes , J. Rosiek , M. Ryczkowski , K. Suxho , L. Trifyllis

We present SmeftFR, a Mathematica package designed to generate the Feynman rules for the Standard Model Effective Field Theory (SMEFT) including the complete set of gauge invariant operators up to dimension~6. Feynman rules are generated…

High Energy Physics - Phenomenology · Physics 2019-12-02 A. Dedes , M. Paraskevas , J. Rosiek , K. Suxho , L. Trifyllis

Global analyses in the Standard Model Effective Field Theory (SMEFT) framework serve as a tool to probe potential directions of new physics. To break degeneracies between the Wilson coefficients of the SMEFT, it is essential to combine…

High Energy Physics - Phenomenology · Physics 2024-12-16 Riccardo Bartocci , Anke Biekötter , Tobias Hurth

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…

High Energy Physics - Phenomenology · Physics 2022-12-07 Monoranjan Guchait , Arnab Roy

We establish the bounds on Wilson coefficients of the Higgs effective field theory (HEFT) mandated by unitarity and analyticity. These positivity constraints can be projected into the space of the standard model effective field theory…

High Energy Physics - Phenomenology · Physics 2026-03-02 Grant N. Remmen , Nicholas L. Rodd

This paper presents a computer code for analyzing electroweak precision data (EWPD) in the framework of the Standard Model Effective Field Theory (SMEFT), highlights the importance of recent ATLAS and CMS precision measurements, and…

High Energy Physics - Phenomenology · Physics 2026-05-14 Hannes Mildner

We use the Fitmaker tool to incorporate the recent CDF measurement of $m_W$ in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We…

High Energy Physics - Phenomenology · Physics 2022-09-21 Emanuele Bagnaschi , John Ellis , Maeve Madigan , Ken Mimasu , Veronica Sanz , Tevong You

We explore the constraints which can be derived on Wilson coefficients in the Standard Model Effective Field Theory from dilepton production, notably including the constraints on operators which do not lead to cross sections growing with…

High Energy Physics - Phenomenology · Physics 2021-03-31 Alyssa Horne , Jordan Pittman , Marcus Snedeker , William Shepherd , Joel W. Walker

We present the Standard Model Effective Field Theories (SMEFT) from purely on-shell arguments. Starting from a few basic assumptions such as Poincar\'e invariance and locality, we classify all the renormalisable and non-renormalisable…

High Energy Physics - Theory · Physics 2022-05-04 Manuel Accettulli Huber , Stefano De Angelis

The Standard Model Effective Field Theory (SMEFT) provides a powerful, model-independent framework to explore deviations from the Standard Model (SM) by parametrising potential new physics through higher-dimensional operators. This thesis…

High Energy Physics - Phenomenology · Physics 2026-02-06 Álvaro Díaz-Carmona

We study implications of the four-fermion semileptonic operators at the low-energy and at electroweak (EW) scale in the framework of Standard Model Effective Field Theory (SMEFT). We show how the renormalization group (RG) running effects…

High Energy Physics - Phenomenology · Physics 2022-02-09 Jacky Kumar

We show that the so-called more effective effective field theory (MEEFT) is essentially equivalent to the proper nuclear effective field theory (NEFT) in describing low-energy electroweak processes in nuclei. A key to understanding their…

Nuclear Theory · Physics 2009-11-10 Satoshi X. Nakamura

We present DsixTools, a Mathematica package for the handling of the dimension-six Standard Model Effective Field Theory. Among other features, DsixTools allows the user to perform the full one-loop Renormalization Group Evolution of the…

High Energy Physics - Phenomenology · Physics 2017-06-23 Alejandro Celis , Javier Fuentes-Martin , Avelino Vicente , Javier Virto

The $SU(2)_L\times U(1)_Y$ invariance of the Standard Model Effective Field Theory (SMEFT) predicts multiple restrictions in the space of Wilson coefficients of $U(1)_{em}$ invariant effective lagrangians such as the Low-energy Effective…

High Energy Physics - Phenomenology · Physics 2024-04-17 Siddhartha Karmakar , Amol Dighe , Rick S. Gupta

It is well known that the electroweak phase transition (EWPhT) in extensions of the Standard Model with one real scalar singlet can be first-order for realistic values of the Higgs mass. We revisit this scenario with the most general…

High Energy Physics - Phenomenology · Physics 2015-05-28 Jose R. Espinosa , Thomas Konstandin , Francesco Riva

Conditional flow matching (CFM) has emerged as a powerful framework for training continuous normalizing flows due to its computational efficiency and effectiveness. However, standard CFM often produces paths that deviate significantly from…