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We construct the general two-Higgs doublet model effective field theory where the effects of additional new physics are parameterized by operators up to mass dimension-six. We further transform this effective theory to the Higgs basis and…

High Energy Physics - Phenomenology · Physics 2024-08-27 Radovan Dermisek , Keith Hermanek

The electroweak sector of the Standard Model can be formulated in a way similar to Chiral Perturbation Theory (ChPT), but extended by a singlet scalar. The resulting effective field theory (EFT) is called Higgs-Electroweak Chiral Lagrangian…

High Energy Physics - Phenomenology · Physics 2019-07-18 Claudius Krause , Gerhard Buchalla , Oscar Catà , Alejandro Celis , Marc Knecht

We consider a complex scalar $\Phi^4 $ theory with spontaneously broken global U(1) symmetry, minimally coupling to perturbatively quantized Einstein gravity which is treated as an effective theory at the energy well below the Planck scale.…

High Energy Physics - Theory · Physics 2015-12-08 Hao-Ran Chang , Wen-Tao Hou , Yi Sun

We develop a simple non-perturbative approach to the calculation of a field theory effective potential that is based on the Wilson or exact renormalization group. Our approach follows Shepard et al's idea [Phys. Rev. D51, 7017 (1995)] of…

High Energy Physics - Theory · Physics 2022-07-05 Jose Gaite

We consider the most general axion-like particle effective field theory, including both CP-odd and CP-even types of interactions, and evaluate the corresponding renormalization group equations, improving and extending previous results in…

High Energy Physics - Phenomenology · Physics 2026-05-26 Luigi C. Bresciani , Giacomo Brunello , Gabriele Levati , Pierpaolo Mastrolia , Paride Paradisi

We derive a universal formula for the one-loop renormalization of the effective K\"ahler potential that applies to general supersymmetric effective field theories of chiral multiplets, with arbitrary interactions respecting N=1…

High Energy Physics - Theory · Physics 2012-05-17 Raphael Flauger , Simeon Hellerman , Cornelius Schmidt-Colinet , Matthew Sudano

We calculate renormalization constants Z_H, Z_w, the Higgs and W-boson mass and tadpole counterterms in the on-mass-shell renormalization scheme to two loops in the heavy-Higgs-boson limit m_H >> M_W. Explicit analytic formulae are…

High Energy Physics - Phenomenology · Physics 2014-11-17 V. Borodulin , G. Jikia

The Standard Model (SM) is usually considered to be unnatural because the scalar Higgs mass receives a quadratic divergent correction. We suggest a new way to solve the naturalness problem from point of view of renormalization group method.…

High Energy Physics - Phenomenology · Physics 2011-04-26 Zheng-Tao Wei , Li-Gong Bian

String-localized quantum field theory allows renormalizable couplings involving massive vector bosons, without invoking negative-norm states and compensating ghosts. We analyze the most general coupling of a massive vector boson to a scalar…

High Energy Physics - Theory · Physics 2023-02-13 Jens Mund , Karl-Henning Rehren , Bert Schroer

We consider the general chiral effective action which parametrizes the nonlinear realization of the spontaneous breaking of the electroweak symmetry with a light Higgs, and compute the one-loop ultraviolet divergences coming from Higgs and…

High Energy Physics - Phenomenology · Physics 2015-10-14 Feng-Kun Guo , Pedro Ruiz-Femenia , Juan Jose Sanz-Cillero

The amplitude of Higgs-Higgs interaction is calculated in the Standard Model in the framework of the Sirlin's renormalization scheme in the unitary gauge. The one-loop corrections for lambda, the constant of 4-chi interaction are compared…

High Energy Physics - Phenomenology · Physics 2016-11-04 Valeriy V. Dvoeglazov

We perform a systematic one-loop renormalization to the standard model with a nonlinearly realized Higgs boson field and the electroweak chiral Lagrangian up to $O(p^2)$ order. We find even in the nonlinear form, the Higgs model of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Qi-Shu Yan

Employing background-field method and super-heat-kernel expansion, we compute the complete one-loop renormalization of the electroweak chiral Lagrangian with a light Higgs boson. Earlier results from purely scalar fluctuations are confirmed…

High Energy Physics - Phenomenology · Physics 2018-03-14 G. Buchalla , O. Cata , A. Celis , M. Knecht , C. Krause

It is shown that the massive Yang-Mills theory is on mass-shell renormalizable. Thus the Standard Model of electroweak interactions can be modified by removing terms with the scalar field from the Lagrangian in the unitary gauge. The…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. A. Larin

Recently, a hitherto unknown class of renormalization group stable relations between parameters of bosonic field theories have been identified and dubbed as the r0 or 'GOOFy' symmetries. Here, one-loop properties of the r0 invariant…

High Energy Physics - Phenomenology · Physics 2026-05-19 P. M. Ferreira , B. Grzadkowski , O. M. Ogreid

In part I and II of this series of papers all elements have been introduced to extend, to two loops, the set of renormalization procedures which are needed in describing the properties of a spontaneously broken gauge theory. In this paper,…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Actis , G. Passarino

We formulate the electroweak chiral Lagrangian in its mass eigenstates, and study the its one-loop renormalization and provide its renormalization group equations to the same order, so as to complete it as the low energy effective theory of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Q. S. Yan , D. S. Du

We obtain the two-loop effective potential for general renormalizable theories, using a generalized gauge-fixing scheme that includes as special cases the background-field $R_\xi$ gauges, the Fermi gauges, and the familiar Landau gauge, and…

High Energy Physics - Phenomenology · Physics 2018-10-24 Stephen P. Martin , Hiren H. Patel

The divergent part of the one-loop off-shell effective action is computed for a single scalar field coupled to the Ricci curvature of 2D gravity ($c \phi R$), and self interacting by an arbitrary potential term $V(\phi)$. The…

High Energy Physics - Theory · Physics 2009-10-22 R. Kantowski , Caren Marzban

The renormalization, finiteness and off-shellness of short distance power like singular interactions is discussed. We show analytically that the renormalizability of the off-shell scattering amplitude relies completely on the corresponding…

Nuclear Theory · Physics 2013-05-29 D. R. Entem , E. Ruiz Arriola