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相关论文: Exploring the 2HDM with Global Fits in $\texttt{GA…

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Future precision measurements of the Standard Model (SM) parameters at the proposed Z-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model (BSM). We illustrate this by focusing on the Type-II…

高能物理 - 唯象学 · 物理学 2019-01-29 Ning Chen , Tao Han , Shufang Su , Wei Su , Yongcheng Wu

The recent Fermilab measurement of the muon anomalous magnetic moment yields $4.2 \sigma$ deviations from the SM prediction when combined with the BNL E821 experiment results. In the Type-X two Higgs doublet model, we study the consequence…

高能物理 - 唯象学 · 物理学 2021-11-24 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song

We established the allowed parameters of two-Higgs doublet model(2HDM) from flavor physics observables, precisely from rare $B$ meson decays. In our analysis most formidable constraints on the 2HDM parameters arise from the branching ratio…

高能物理 - 唯象学 · 物理学 2017-04-25 Mureed Hussain , Muhammad Usman , Muhammad Ali Paracha , Muhammad Jamil Aslam

We computed the leading order Wilson coefficients relevant to all the exclusive $b\to s\ell^+\ell^-$ decays in the framework of Two Higgs Doublet Model (2HDM) with a softly broken $\mathbb{Z}_2$ symmetry by including the $\mathcal{O}(m_b)$…

高能物理 - 唯象学 · 物理学 2018-01-17 Pere Arnan , Damir Bečirević , Federico Mescia , Olcyr Sumensari

We present preliminary results of the first convergent global fits of several minimal composite Higgs models. Our fits are performed using the differential evolution optimisation package $\texttt{Diver}$. A variety of physical constraints…

高能物理 - 唯象学 · 物理学 2021-02-03 Ethan Carragher , Daniel Murnane , Peter Stangl , Wei Su , Martin White , Anthony G. Williams

This manual describes the public code 2HDMC which can be used to perform calculations in a general, CP-conserving, two-Higgs-doublet model (2HDM). The program features simple conversion between different parametrizations of the 2HDM…

高能物理 - 唯象学 · 物理学 2009-12-04 David Eriksson , Johan Rathsman , Oscar Stål

Imposing the theoretical constraints from vacuum stability, unitarity and perturbativity as well as the experimental constraints from the electroweak precision data, flavor observables and the non-observation of additional Higgs at…

高能物理 - 唯象学 · 物理学 2015-06-18 Lei Wang , Xiao-Fang Han

We study the Two-Higgs-Doublet Model with the aligned Yukawa sector (A2HDM) in light of the observed excess measured in the muon anomalous magnetic moment. We take into account the existing theoretical and experimental constraints with…

高能物理 - 唯象学 · 物理学 2016-03-23 Tao Han , Sin Kyu Kang , Joshua Sayre

A novel model embedding the two Higgs doublets in the popular two Higgs doublet models into a doublet of a non-abelian gauge group $SU(2)_H$ is presented. The Standard Model $SU(2)_L$ right-handed fermion singlets are paired up with new…

高能物理 - 唯象学 · 物理学 2016-05-04 Wei-Chih Huang , Yue-Lin Sming Tsai , Tzu-Chiang Yuan

We perform a state-of-the-art global fit to all Higgs data. We synthesise them into a 'universal' form, which allows to easily test any desired model. We apply the proposed methodology to extract from data the Higgs branching ratios,…

高能物理 - 唯象学 · 物理学 2015-06-15 Pier Paolo Giardino , Kristjan Kannike , Isabella Masina , Martti Raidal , Alessandro Strumia

We carry out global fits to the Non-Universal Higgs Model (NUHM), applying all relevant present-day constraints. We present global probability maps for the NUHM parameters and observables (including collider signatures, direct and indirect…

高能物理 - 唯象学 · 物理学 2011-03-22 L. Roszkowski , R. Ruiz de Austri , R. Trotta , Y. -L. S. Tsai , T. A. Varley

The current LHC Higgs data provide strong constraints on possible deviations of the couplings of the observed 125 GeV Higgs boson from the Standard Model (SM) expectations. Therefore, it now becomes compelling that any extended Higgs sector…

高能物理 - 唯象学 · 物理学 2015-08-03 P. S. Bhupal Dev , Apostolos Pilaftsis

The custodial Two-Higgs-Doublet-Model with SU(2) gauge fields is studied on the lattice. This model has the same global symmetry structure as the Standard Model but the additional Higgs field enlarges the scalar spectrum and opens the…

Two-Higgs-doublet models (2HDMs) are minimal extensions of the Standard Model (SM) that may still be discovered at the LHC. The quartic couplings of their potentials can be determined from the measurement of the masses and branching ratios…

高能物理 - 唯象学 · 物理学 2018-05-23 Gautam Bhattacharyya , Dipankar Das , M. Jay Pérez , Ipsita Saha , Arcadi Santamaria , Oscar Vives

We explore the extent to which future precision measurements of the Standard Model (SM) observables at the proposed $Z$-factories and Higgs factories may have impacts on new physics beyond the Standard Model, as illustrated by studying the…

高能物理 - 唯象学 · 物理学 2020-11-20 Ning Chen , Tao Han , Shuailong Li , Shufang Su , Wei Su , Yongcheng Wu

Future precision measurements of the Standard Model (SM) parameters at the proposed $Z$-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model in the electroweak sector. We illustrate this by…

高能物理 - 唯象学 · 物理学 2019-03-27 Ning Chen , Tao Han , Shufang Su , Wei Su , Yongcheng Wu

Properties of the Higgs sector of Two Higgs Doublet Model (2HDM) and existing constraints on its parameters are discussed. Potential of the Photon Linear Collider in testing various Higgs scenarios of 2HDM, including the MSSM, based on the…

高能物理 - 唯象学 · 物理学 2007-05-23 Maria Krawczyk

The flavour structure of the general Two Higgs Doublet Model (2HDM) is analysed and a detailed study of the parameter space is presented, showing that flavour mixing in the 2HDM can be parametrized by various unitary matrices which arise…

高能物理 - 唯象学 · 物理学 2015-06-11 F. J. Botella , G. C. Branco , M. N. Rebelo

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

New results for the Inert Doublet Model (IDM) are discussed. It is very special among the $D$-symmetric 2HDMs, offering a good DM candidate. New unitarity constraints were derived for the IDM and SM-like light Higgs boson scenario in the…

高能物理 - 唯象学 · 物理学 2012-05-08 Bogumila Gorczyca , Maria Krawczyk