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Related papers: Sensitivity and constraints to the 2HDM soft-break…

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In this study, we focus on the bosonic decays of light charged Higgs boson (i.e., with $M_{H^\pm}<m_t$) in the 2-Higgs Doublet Model (2HDM) Type-I. To study the signal of such a charged Higgs state at the Large Hadron Collider (LHC), in a…

High Energy Physics - Phenomenology · Physics 2021-01-04 Abdesslam Arhrib , Rachid Benbrik , Hicham Harouiz , Stefano Moretti , Yan Wang , Qi-Shu Yan

Extensions of the Standard Model Higgs sector involving weak isotriplet scalars are not only benchmark candidates to reconcile observed anomalies of the recently discovered Higgs-like particle, but also exhibit a vast parameter space, for…

High Energy Physics - Phenomenology · Physics 2013-09-04 Christoph Englert , Emanuele Re , Michael Spannowsky

We present an up-to-date analysis of the constraints imposed bythe precision data on the ($CP-$ conserving) Two-Higgs-Doublet Model of type II, with emphasis on the possible existence of very light neutral (pseudo)scalar Higgs boson with…

High Energy Physics - Phenomenology · Physics 2011-09-13 P. H. Chankowski , M. Krawczyk , J. Zochowski

Since the current LHC Higgs data suggest the couplings of the observed 125 GeV Higgs boson to be close to the Standard Model (SM) expectations, any extended Higgs sector must lead to the so-called SM alignment limit, where one of the Higgs…

High Energy Physics - Phenomenology · Physics 2015-11-03 P. S. Bhupal Dev , Apostolos Pilaftsis

We show that there are regions of parameter space in multi-scalar doublet models where, in the first few hundred inverse femtobarns of data, the new charged and neutral scalars are not directly observable at the LHC and yet the Higgs decay…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sonny Mantry , Michael Trott , Mark B. Wise

The soft-breaking parameter, $m_{12}^2$, frequently appearing in the 2HDM scalar potential is much more remarkable than being just a nonstandard parameter that helps make the BSM scalars super heavy. In fact, as we show through explicit…

High Energy Physics - Phenomenology · Physics 2026-03-25 Dipankar Das , Miguel Levy , Shreya Pandey , Ipsita Saha , Agnivo Sarkar

We consider a Two-Higgs-Doublet Model (2HDM) constrained by the condition that assures cancellation of quadratic divergences up to the leading two-loop order. Regions in the parameter space consistent with existing experimental constraints…

High Energy Physics - Phenomenology · Physics 2011-01-27 Bohdan Grzadkowski , Per Osland

The latest LHC collaborations results on $\sigma_{H^{\pm}}BR(H^{\pm} \rightarrow \tau^{\pm}\nu)$ and $\sigma_{H^{\pm}}BR(H^{+} \rightarrow t\bar{b})$ are used to impose constraints on the charged Higgs $H^{\pm}$ parameters within the Two…

High Energy Physics - Phenomenology · Physics 2022-08-08 Kanhaiya Gupta

In the type-I two-Higgs-doublet model, existing theoretical and experimental constraints still permit the light charged Higgs boson with a mass below the top quark mass. We present a complete roadmap for the light charged Higgs boson at the…

High Energy Physics - Phenomenology · Physics 2022-06-08 Kingman Cheung , Adil Jueid , Jinheung Kim , Soojin Lee , Chih-Ting Lu , Jeonghyeon Song

We examine the correlations between new scalar boson decays to photons and electric dipole moments (EDMs) in the CP-violating flavor-aligned two-Higgs-doublet model (2HDM). It is convenient to work in the Higgs basis $\{{H}_1, {H}_2\}$…

High Energy Physics - Phenomenology · Physics 2025-03-27 Sumit Banik , Guglielmo Coloretti , Andreas Crivellin , Howard E. Haber

A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy trace of the departure from a Standard Model (SM) Higgs…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Moretti , S. Moretti , F. Piccinini , R. Pittau , A. D. Polosa

The inert Two Higgs Doublet Model (i2HDM) is a theoretically well-motivated example of a minimal consistent Dark Matter(DM) model which provides mono-jet, mono-Z, mono-Higgs and Vector-Boson-Fusion+Missing Transverse Momentum signatures at…

High Energy Physics - Phenomenology · Physics 2020-07-28 Alexander Belyaev , Giacomo Cacciapaglia , Igor P. Ivanov , Felipe Rojas , Marc Thomas

We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, $m^2_{H_{u,d}}$, vary independently from the universal soft…

We study the Higgs sector in the Next-to-Minimal Supersymmetric Standard Model with and without explicit CP violation, focusing on the case of weak scale expectation value of the singlet field. We scan a wide range of the parameter space to…

High Energy Physics - Phenomenology · Physics 2009-11-10 Koichi Funakubo , Shuichiro Tao

This study explores the possibility of discovering $H^{\pm}$ through its bosonic decays, i.e. $H^{\pm}\rightarrow W^\pm\phi$ (where $\phi$ = h or A), within the Type-I Two Higgs Doublet Model (2HDM). The main objective is to demonstrate the…

High Energy Physics - Phenomenology · Physics 2023-10-30 Ijaz Ahmed , Waqas Ahmad , M. S. Amjad , Jamil Muhammad

The detailed investigation of the Higgs sector at present and future colliders necessitates from the theory side as precise predictions as possible, including higher order corrections. An important ingredient for the computation of higher…

High Energy Physics - Phenomenology · Physics 2017-04-19 Marcel Krause , Margarete Muhlleitner , Rui Santos , Hanna Ziesche

Constraints on the general 2HDM ("Model II") are obtained from the existing $(g-2)_{\mu}$ data including limits on Higgs bosons masses from LEP I data. We consider separately two cases: with a light scalar $h$ and with a light pseudoscalar…

High Energy Physics - Phenomenology · Physics 2008-11-26 Maria Krawczyk , Jan Zochowski

In a recent publication [6], the Belle collaboration updated their analysis of the inclusive weak radiative B-meson decay, including the full dataset of (772 +_ 11) x 10^6 BBbar pairs. Their result for the branching ratio is now below the…

High Energy Physics - Phenomenology · Physics 2017-04-26 Mikolaj Misiak , Matthias Steinhauser

The non-conservation of the lepton number has been explored at the LHC through the Lepton-Flavor Violating (LFV) Higgs decays $h\to\ell_a\ell_b$, with $\ell_{a,\,b}=e,\,\mu,\,\tau$ $(a \neq b)$. Current limits on these decays are a source…

High Energy Physics - Phenomenology · Physics 2024-07-18 M. A. Arroyo-Ureña , J. Lorenzo Díaz-Cruz , O. Félix-Beltrán , M. Zeleny-Mora

Future Higgs factories can reach impressive precision on Higgs property measurements. In this paper, instead of conventional focus of Higgs precision in certain interaction bases, we explored its sensitivity to new physics models at the…

High Energy Physics - Phenomenology · Physics 2019-08-17 Jiayin Gu , Honglei Li , Zhen Liu , Shufang Su , Wei Su