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Related papers: One-loop on-shell and off-shell decay $H^*\rightar…

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We present one-loop formulas for contributing to the $HZZ$ vertex in 't Hooft-Veltman gauge within Standard Model framework. One-loop off-shell Higgs decay rates to $Z$-pair are investigated in both unpolarized and longitudinal polarization…

High Energy Physics - Phenomenology · Physics 2023-05-09 Khiem Hong Phan , Dzung Tri Tran , Anh Thu Nguyen

We present analytic results for one-loop radiative corrections to off-shell decay $H^* \rightarrow W^+W^-$ in 't Hooft-Veltman gauge within Standard Model framework. In numerical results, we show off-shell decay rate and its corrections…

High Energy Physics - Phenomenology · Physics 2023-05-09 Khiem Hong Phan , Dzung Tri Tran , Anh Thu Nguyen

We discuss off-shell contributions in Higgs decays to heavy gauge bosons $H\rightarrow VV^{(*)}$ with $V\in\lbrace Z,W\rbrace$ for a standard model (SM) Higgs boson for both dominant production processes $e^+e^-\rightarrow ZH\rightarrow…

High Energy Physics - Phenomenology · Physics 2015-03-27 Stefan Liebler

We present one-loop formulas for the decay of CP-odd Higgs $A^0 \rightarrow \ell \bar{\ell} V$ with $\ell \equiv e, \mu$ and $V\equiv \gamma, Z$ in Higgs Extensions of the Standard Model, considering two higgs doublet model with a complex…

High Energy Physics - Phenomenology · Physics 2024-04-04 Khiem Hong Phan , Dzung Tri Tran , Thanh Huy Nguyen

One-loop production of a Higgs boson in electro-photon collisions at future accelerators is studied via the process (e gamma -> e H), for intermediate Higgs masses. Exact cross sections, including the possibility of longitudinally polarized…

High Energy Physics - Phenomenology · Physics 2014-11-17 E. Gabrielli , V. A. Ilyin , B. Mele

One-loop contributions for decay process $H^{\pm} \rightarrow W^{\pm}Z$ within the Two-Higgs-Doublet Model are computed in the general $\mathcal{R}_{\xi}$ gauge, and its phenomenological applications at future muon--TeV colliders are…

High Energy Physics - Phenomenology · Physics 2025-09-30 Dzung Tri Tran , Quang Hoang-Minh Pham , Khoa Ngo-Thanh Ho , Khiem Hong Phan

We show that the Higgs production in $e\gamma$ collisions, through the one-loop reaction $e\gamma\to eH$ at large transverse momentum, can provide a precise determination of the $Z\gamma H$ vertex. We concentrate on the analysis of signal…

High Energy Physics - Phenomenology · Physics 2009-10-30 E. Gabrielli , V. A. Ilyin , B. Mele

In this paper, new analytic formulas for one-loop contributing to Higgs decay channel $H \rightarrow Z\gamma$ are presented in terms of hypergeometric functions. The calculations are performed by following the technique for tensor one-loop…

High Energy Physics - Phenomenology · Physics 2020-06-03 Khiem Hong Phan , Dzung Tri Tran

In this paper, we present analytical results for one-loop contributing to the decay processes $H\rightarrow Z \nu_l\bar{\nu}_l$ (for $l = e, \mu, \tau$). The calculations are performed within the Standard Model framework in 't Hooft-Veltman…

High Energy Physics - Phenomenology · Physics 2023-04-26 Dzung Tri Tran , Khiem Hong Phan

We study the correlation between the Standard Model Higgs decay $h\to \gamma \gamma$ and $h\to Z \gamma$ in the Inert Higgs Doublet Model. It is found that these two one-loop-induced decays are positively correlated, with the later channel…

High Energy Physics - Phenomenology · Physics 2015-06-18 Abdesslam Arhrib , Rachid Benbrik , Tzu-Chiang Yuan

We derive the width of the Higgs boson into vector bosons. General formulas are derived both for the on-shell decay H -> VV as well for the off-shell decays, H -> V^* V and H -> V^* V^*, where V=\gamma,W,Z. For the off-shell decays the…

High Energy Physics - Phenomenology · Physics 2011-09-13 J. C. Romao , S. Andringa

The importance of off-shell contributions is discussed for $H\to VV^{(*)}$ with $V\in\{Z,W\}$ for large invariant masses $m_{VV}$ involving a standard model (SM)-like Higgs boson with $m_H=125$GeV at a linear collider (LC). Both dominant…

High Energy Physics - Phenomenology · Physics 2015-06-24 Stefan Liebler , Gudrid Moortgat-Pick , Georg Weiglein

We investigate the Standard Model Higgs boson production in $e^-\gamma$ collision. The electroweak one-loop contributions to the scattering amplitude for $e^-\gamma\rightarrow e^-H$ are calculated and expressed in analytical form. We…

High Energy Physics - Phenomenology · Physics 2014-09-05 Norihisa Watanabe , Yoshimasa Kurihara , Tsuneo Uematsu , Ken Sasaki

We calculate Higgs coupling constants at one-loop level in the Higgs triplet model (HTM) to compare to future collider experiments. We evaluate the decay rate of the standard model (SM)-like Higgs boson ($h$) into diphoton. Renormalized…

High Energy Physics - Phenomenology · Physics 2013-05-02 Mariko Kikuchi

We explore the phenomenology of virtual spin-1 contributions to the h to gamma gamma and h to Z gamma decay rates in gauge extensions of the standard model. We consider generic lorentz and gauge invariant vector self-interactions, which can…

High Energy Physics - Phenomenology · Physics 2014-03-05 Don Bunk , Jay Hubisz , Bithika Jain

We present an updated overview on the phenomenology of one-loop Higgs boson production at Linear Colliders within the general Two-Higgs-Doublet Model (2HDM). First we report on the Higgs boson pair production, and associated Higgs-Z boson…

High Energy Physics - Phenomenology · Physics 2022-03-02 Joan Sola , David Lopez-Val

Higgs production in $e\gamma$ collisions, through the one-loop reaction $e\gamma\to eH$ at large $p_T$, can provide a precise determination of the $Z\gamma H$ vertex.

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Gabrielli , V. A. Ilyin , B. Mele

A systematic study of one-loop contributions to the decay channels $h\rightarrow l\bar{l}\gamma$ with $l=\nu_{e,\mu, \tau}, e, \mu$, performed in Higgs extended versions of the Standard Model, is presented in the 't Hooft-Veltman gauge.…

High Energy Physics - Phenomenology · Physics 2023-08-30 L. T. Hue , Dzung Tri Tran , Thanh Huy Nguyen , Khiem Hong Phan

In the upcoming LHC run we will be able to probe the structure ofthe loop--induced Higgs--gluon coupling through kinematics. First, we establish state-of-the-art simulations with up to two jets to next-to-leading order including top mass…

High Energy Physics - Phenomenology · Physics 2015-06-23 Malte Buschmann , Dorival Goncalves , Silvan Kuttimalai , Marek Schonherr , Frank Krauss , Tilman Plehn

We calculate a full set of one-loop corrections to the Higgs boson coupling constants as well as the electroweak parameters. We compute the decay rate of the standard model (SM)-like Higgs boson ($h$) into diphoton. Renormalized Higgs…

High Energy Physics - Phenomenology · Physics 2015-06-12 Mayumi Aoki , Shinya Kanemura , Mariko Kikuchi , Kei Yagyu
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