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Two-Higgs-Doublet Model Evolver (2HDME) is a C++ program that provides the functionality to perform fast renormalization group equation running of the general, potentially CP-violating, 2 Higgs Doublet Model at 2-loop order. Simple…

高能物理 - 唯象学 · 物理学 2019-08-21 Joel Oredsson

The Standard Model (SM)-like couplings of the observed Higgs boson impose strong constraints on the structure of any extended Higgs sector. We consider the theoretical properties and the phenomenological implications of a generic two Higgs…

高能物理 - 唯象学 · 物理学 2018-12-26 Bohdan Grzadkowski , Howard E. Haber , Odd Magne Ogreid , Per Osland

The discrepancy between the measured value and the Standard Model prediction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where…

高能物理 - 唯象学 · 物理学 2020-01-29 Syuhei Iguro , Yuji Omura , Michihisa Takeuchi

In this talk, we report unitarity constraints and phenomenological studies at the Large Hadron Collider for the extra Higgs bosons of a Composite 2-Higgs Doublet Model.

高能物理 - 唯象学 · 物理学 2016-12-16 Stefania De Curtis , Stefano Moretti , Kei Yagyu , Emine Yildirim

Extending the Higgs sector of the Standard Model (SM) by just one additional Higgs doublet field leads to the two-Higgs-doublet model (2HDM). In the Type-I $Z_2$-symmetric limit of the 2HDM, all the five new physical Higgs states can be…

高能物理 - 唯象学 · 物理学 2023-11-15 Tanmoy Mondal , Stefano Moretti , Shoaib Munir , Prasenjit Sanyal

We study a simple two Higgs doublet model (2HDM) in the Randall-Sundrum scenario, with an IR brane localized Higgs field and a second doublet arising from a $t\bar{t}$ condensate due to strong Kaluza-Klein gluon effects. The effective 2HDM…

高能物理 - 唯象学 · 物理学 2011-01-20 We-Fu Chang , John N. Ng , A. P. Spray

We present a systematic study of an extension of the Standard Model (SM) with two Higgs doublets and one complex singlet (2HDM+S). In order to gain analytical understanding of the parameter space, we re-parameterize the 27 parameters in the…

高能物理 - 唯象学 · 物理学 2018-12-18 Sebastian Baum , Nausheen R. Shah

Motivated by the new observed scalar boson of 126 GeV at ATLAS and CMS, various phenomena in two-Higgs-doublet model (THDM) are investigated broadly in the literature. For considering the model that possesses a solution to the massive…

高能物理 - 唯象学 · 物理学 2015-06-22 Chuan-Hung Chen , Takaaki Nomura

Beyond the Standard Model (SM) extensions usually include extended Higgs sectors. Models with singlet or doublet fields are the simplest ones that are compatible with the $\rho$ parameter constraint. The discovery of new non-SM Higgs bosons…

高能物理 - 唯象学 · 物理学 2017-10-04 M. Muhlleitner , M. Sampaio , R. Santos , J. Wittbrodt

The Two-Higgs-doublet model (2HDM) is one of the most studied extensions of the Standard Model. Like the other popular "New Physics" models, it gets more and more constrained by recent experimental progress, especially by the LHC data. For…

高能物理 - 唯象学 · 物理学 2017-09-28 Otto Eberhardt

Higgs mechanism of EWSB can be realized in both well known minimal model and with more complex non-minimal Higgs models. These non-minimal models contain new Higgs bosons -- neutral $h_a$ and charged $H_b^\pm$. Necessary step in the…

高能物理 - 唯象学 · 物理学 2015-05-19 I. F. Ginzburg

Measurements of a Higgs boson at the Large Hadron Collider (LHC) have become increasingly consistent with the predictions of the Standard Model (SM). This fact puts severe constraints on many potential low-energy extensions of the Higgs…

高能物理 - 唯象学 · 物理学 2019-09-04 Emily Hanson , William Klemm , Roger Naranjo , Yvonne Peters , Apostolos Pilaftsis

The LHC is now studying in detail the couplings of the Higgs boson in order to determine if there is new physics. Many recent studies have examined the available fits to Higgs couplings from the perspective of constraining two Higgs doublet…

高能物理 - 唯象学 · 物理学 2016-10-12 Li Cheng , German Valencia

We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under the precision measurements of the Standard Model (SM) Higgs observables at the proposed Higgs factories. We explore the discovery potential based on…

高能物理 - 唯象学 · 物理学 2021-02-03 Tao Han , Shuailong Li , Shufang Su , Wei Su , Yongcheng Wu

We make a phenomenological study of a model with two inert doublets plus one Higgs doublet (I(2+1)HDM) which is symmetric under a Z$_2$ group, preserved after Electro-Weak Symmetry Breaking (EWSB) by the vacuum alignment $(0,0,v)$. This…

高能物理 - 唯象学 · 物理学 2014-10-22 Venus Keus , Stephen F. King , Stefano Moretti

We present the complete set of continuous maximal symmetries that the potential of an $n$-Higgs Doublet Model ($n$HDM) should satisfy for natural Standard Model (SM) alignment. As a result, no large mass scales or fine-tuning is required…

高能物理 - 唯象学 · 物理学 2020-04-10 Neda Darvishi , Apostolos Pilaftsis

We derive a complete set of Feynman rules in the general two-Higgs doublet model effective field theory where the effects of additional new physics are parametrized by operators up to mass dimension-six. We calculate the physical Higgs…

高能物理 - 唯象学 · 物理学 2025-09-12 Radovan Dermisek , Keith Hermanek

We find bounds on scalar masses resulting from a criterion of naturalness, in a broad class of two Higgs doublet models (2HDMs). Specifically, we assume the cancellation of quadratic divergences in what are called the type I, type II,…

高能物理 - 唯象学 · 物理学 2015-06-19 Ambalika Biswas , Amitabha Lahiri

In the case of minimal supersymmetric extension of the Standard Model (MSSM), when the pseudoscalar Higgs boson mass is less than the supersymmetry energy scale, the effective theory at the electroweak scale is a two-Higgs-doublet model. We…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Dubinin , A. Semenov

The goal of this report is to summarize the current situation and discuss possible search strategies for charged scalars, in non-supersymmetric extensions of the Standard Model at the LHC. Such scalars appear in Multi-Higgs-Doublet models…