☆ 4.7 Article

Nondecoupling effects from heavy Higgs bosons by matching 2HDM to HEFT amplitudes

PHYSICAL REVIEW D (2023)

Related references

Note: Only part of the references are listed.

Article Astronomy & Astrophysics

Introducing tools to test Higgs boson interactions via WW scattering. II. The coupled-channel formalism and scalar resonances

Inigo Asiain et al.

Summary: In this work, we investigate scalar resonances in WW fusion process within the framework of Higgs effective field theories (HEFTs) at the LHC experiments. While the understanding of vector resonances is well-established, scalar resonances are less constrained and depend on experimentally difficult to determine HEFT low-energy effective couplings. We apply unitarization techniques combined with causality requirement to set nontrivial constraints on Higgs self-interactions and gain information on the Higgs sector from WW → WW elastic processes without considering two-Higgs production.

PHYSICAL REVIEW D (2023)

Add to Collection

Article Astronomy & Astrophysics

Integrating out heavy scalars with modified equations of motion: Matching computation of dimension-eight SMEFT coefficients

Upalaparna Banerjee et al.

Summary: In this work, an algorithmic approach is presented to automate matching computations for dimension-eight operators for generic scalar extensions with proper implementation of equations of motion. A step-by-step procedure is devised to obtain the dimension-eight Wilson coefficients in a nonredundant basis to arrive at complete matching results. This formalism is applied to a range of scalar extensions of the Standard Model, providing tree-level and loop-suppressed results. The relevance of dimension-eight operators for a range of phenomenological analyses, particularly focusing on Higgs and electroweak physics, is discussed.

PHYSICAL REVIEW D (2023)

Add to Collection

Article Physics, Multidisciplinary

From models to SMEFT and back?

Ilaria Brivio et al.

Summary: We present a global analysis of the Higgs and electroweak sector, utilizing the SMEFT framework and matched to a UV-completion. Our results highlight the complementarity between SMEFT and model-specific analyses.

SCIPOST PHYSICS (2022)

Add to Collection

Article Physics, Particles & Fields

A new Higgs effective field theory and the new no-lose theorem

Shinya Kanemura et al.

Summary: The non-decoupling effects of heavy new particles cannot be described by the standard effective field theory with finite truncation of higher dimensional operators. A new effective field theory is proposed to correctly describe the non-decoupling quantum effects of new physics. The scale of new physics can be estimated by observing the Higgs coupling deviation in future collider experiments.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Add to Collection

Article Astronomy & Astrophysics

Sensitivity and constraints to the 2HDM soft-breaking Z2 parameter m12

F. Arco et al.

Summary: This letter focuses on the specific sensitivity and constraints of the soft breaking Z(2) parameter m(12) in the Two Higgs Doublet Model (2HDM). By studying the decays of the lightest Higgs boson h to two photons, possible constraints on m(12) are demonstrated. These constraints are important in the region of the 2HDM parameter space that satisfies other constraints.

PHYSICS LETTERS B (2022)

Add to Collection

Article Physics, Particles & Fields

Quartic Gauge-Higgs couplings: constraints and future directions

Anisha et al.

Summary: This paper investigates the quartic interactions of the Higgs boson with gauge bosons and proposes the kappa framework and Higgs effective field theory techniques to study these interactions. The study finds that constraints on these interactions can be obtained through experiments at the Large Hadron Collider and the sensitivity to these interactions can be improved using Graph Neural Networks.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Add to Collection

Article Astronomy & Astrophysics

Double Higgs boson production at TeV e plus e - colliders with effective field theories: Sensitivity to BSM Higgs couplings

D. Domenech et al.

Summary: In this study, we investigate the production of two Higgs bosons at the planned electron positron colliders, CLIC and ILC, using effective field theories (EFTs). We compare the Higgs effective field theory (HEFT) with the Standard Model effective field theory (SMEFT), and analyze the predictions for double Higgs production in both EFTs. We find that in the HEFT case, the total cross section can be understood in terms of the LL contribution, which is dominated by two HEFT coefficients. By matching the two EFTs at the level of the scattering amplitude, we find the correspondence of the leading coefficients in the HEFT and the SMEFT. Furthermore, we explore the sensitivity to these coefficients at CLIC and ILC, and determine the accessible region for these parameters by studying the predicted rates for the final state bb over bar bb over bar nu nu over bar.

PHYSICAL REVIEW D (2022)

Add to Collection

Article Astronomy & Astrophysics

Role of dimension-eight operators in an EFT for the 2HDM

Sally Dawson et al.

Summary: The article discusses the Standard Model effective field theory (SMEFT) and its application in studying deviations of Higgs couplings. By considering the matching between the effective theory including dimension-eight operators and the 2 Higgs doublet model (2HDM), as well as taking into account the limits from direct production of single Higgs bosons and indirect limits on the Riggs trilinear coupling, the importance of assumptions about the expansions in powers of the high scale is numerically examined.

PHYSICAL REVIEW D (2022)

Add to Collection

Article Astronomy & Astrophysics

One-loop corrections for WW to HH in Higgs EFT with the electroweak chiral Lagrangian

M. J. Herrero et al.

Summary: In this work, we present the calculation of one-loop electroweak radiative corrections to the scattering process WW -> HH within the framework of the Higgs Effective Field Theory. We use the renormalization of oneparticle-irreducible functions to compute the amplitude and derive the renormalized coefficients of the EChL relevant for this process. We also compare the results with the Standard Model case.

PHYSICAL REVIEW D (2022)

Add to Collection

Article Physics, Particles & Fields

Triple Higgs couplings in the 2HDM: the complete picture

F. Arco et al.

Summary: This study investigates the allowed ranges for triple Higgs couplings involving at least one light, SM-like Higgs boson within the framework of Two Higgs Doublet Models (2HDM). The results have important implications for the experimental determination of this coupling at future collider experiments, and potentially large values could lead to strongly enhanced production of two Higgs-bosons at high-energy colliders.

EUROPEAN PHYSICAL JOURNAL C (2022)

Add to Collection

Article Astronomy & Astrophysics

Introducing tools to test Higgs boson interactions via WW scattering: One-loop calculations and renormalization in the Higgs effective field theory

Inigo Asiain et al.

Summary: This article focuses on the processes of producing two Higgs bosons through longitudinal WW scattering. By performing one-loop calculations in the Higgs effective field theory framework, the necessary counterterms are determined and the study investigates how the inclusion of gauge degrees of freedom affects the masses and widths of the dynamical resonances. This research provides the technical tools needed to study the low-energy couplings in the Higgs effective theory under the requirements of unitarity and causality.

PHYSICAL REVIEW D (2022)

Add to Collection

Article Physics, Particles & Fields

Unitarity violation and the geometry of Higgs EFTs

Timothy Cohen et al.

Summary: This study derives the scale of unitarity violation from the geometry of Effective Field Theory extensions of the Standard Model Higgs sector, revealing the behavior of high-energy amplitudes. It is found that theories described by HEFT at low energies but not by SMEFT exhibit unitarity violation, limiting the radius of convergence of geometric invariants.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Physics, Particles & Fields

Is SMEFT enough?

Timothy Cohen et al.

Summary: There are two canonical approaches to treating the Standard Model as an Effective Field Theory (EFT): SMEFT and HEFT. HEFT encompasses SMEFT and concrete criteria can distinguish between the two. Perturbative new physics must be matched onto HEFT in certain scenarios.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Astronomy & Astrophysics

One-loop renormalization of vector boson scattering with the electroweak chiral Lagrangian in covariant gauges

Maria J. Herrero et al.

Summary: This work presents a first full one-loop computation of vector boson scattering within the non-linear effective field theory and compares it with the Standard Model case. The calculation is performed using the diagrammatic method with one-particle-irreducible Green functions. The central part focuses on the renormalization of all n-legs one-loop 1PI Green functions involved, highlighting the importance of EChL coefficients for dealing with new divergences.

PHYSICAL REVIEW D (2021)

Add to Collection

Review Physics, Nuclear

Strongly coupled theories beyond the Standard Model

Antonio Dobado et al.

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS (2020)

Add to Collection

Article Physics, Particles & Fields

Exploring sizable triple Higgs couplings in the 2HDM

F. Arco et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

Add to Collection

Article Astronomy & Astrophysics

Anatomy of Higgs boson decays into γγ and γZ within the electroweak chiral Lagrangian in the Rξ gauges

Maria Herrero et al.

PHYSICAL REVIEW D (2020)

Add to Collection

Article Physics, Particles & Fields

Effective field theories in R gauges

M. Misiak et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Add to Collection

Article Physics, Particles & Fields

Which EFT

Adam Falkowski et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Add to Collection

Review Physics, Multidisciplinary

The standard model as an effective field theory

Ilaria Brivio et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2019)

Add to Collection

Article Physics, Particles & Fields

Higgs EFT for 2HDM and beyond

Hermes Belusca-Maito et al.

EUROPEAN PHYSICAL JOURNAL C (2017)

Add to Collection

Article Physics, Particles & Fields

Feynman rules for the Standard Model Effective Field Theory in Rξ-gauges

A. Dedes et al.

JOURNAL OF HIGH ENERGY PHYSICS (2017)

Add to Collection

Article Astronomy & Astrophysics

A geometric formulation of Higgs Effective Field Theory: Measuring the curvature of scalar field space

Rodrigo Alonso et al.

PHYSICS LETTERS B (2016)

Add to Collection

Article Physics, Particles & Fields

Geometry of the scalar sector

Rodrigo Alonso et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Add to Collection

Article Physics, Multidisciplinary

Possible New Resonance from WLWL-hh Interchannel Coupling

Rafael L. Delgado et al.

PHYSICAL REVIEW LETTERS (2015)

Add to Collection

Article Physics, Multidisciplinary

Combined Measurement of the Higgs Boson Mass in pp Collisions at √s=7 and 8 TeV with the ATLAS and CMS Experiments

G. Aad et al.

PHYSICAL REVIEW LETTERS (2015)

Add to Collection

Article Physics, Particles & Fields

h → Zγ in the complex two Higgs doublet model

Duarte Fontes et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Physics, Particles & Fields

One-loop WLWL and ZLZL scattering from the electroweak Chiral Lagrangian with a light Higgs-like scalar

Rafael L. Delgado et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Physics, Particles & Fields

Renormalization group evolution of the Standard Model dimension six operators III: gauge coupling dependence and phenomenology

Rodrigo Alonso et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Physics, Particles & Fields

Renormalization group evolution of the Standard Model dimension six operators II: Yukawa dependence

Elizabeth E. Jenkins et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Physics, Particles & Fields

Renormalization group evolution of the standard model dimension six operators. I: formalism and λ dependence

Elizabeth E. Jenkins et al.

JOURNAL OF HIGH ENERGY PHYSICS (2013)

Add to Collection

Article Astronomy & Astrophysics

Higgs decay to two photons

William J. Marciano et al.

PHYSICAL REVIEW D (2012)

Add to Collection

Article Astronomy & Astrophysics

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC

S. Chatrchyan et al.

PHYSICS LETTERS B (2012)

Add to Collection

Article Astronomy & Astrophysics

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

G. Aad et al.

PHYSICS LETTERS B (2012)

Add to Collection

Review Physics, Multidisciplinary

Theory and phenomenology of two-Higgs-doublet models

G. C. Branco et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2012)

Add to Collection

Review Astronomy & Astrophysics

Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology

Mayumi Aoki et al.

PHYSICAL REVIEW D (2009)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Generating Feynman diagrams and amplitudes with FeynArts 3

T Hahn

COMPUTER PHYSICS COMMUNICATIONS (2001)

Add to Collection

© Peeref 2019-2024. All rights reserved.