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The trilinear Higgs coupling $\lambda_{hhh}$ is a crucial tool to probe the structure of the Higgs potential and to search for possible effects of physics beyond the Standard Model (SM). Focusing on the Two-Higgs-Doublet Model as a concrete…

高能物理 - 唯象学 · 物理学 2023-11-01 Henning Bahl , Johannes Braathen , Georg Weiglein

We propose a 2-Higgs doublet model where the symmetry is extended by $S_{3}\otimes Z_{3}\otimes Z_{3}^{\prime }\otimes Z_{14}$ and the field content is enlarged by extra $SU(2)_{L}$ singlet scalar fields. $S_3$ makes the model predictive…

高能物理 - 唯象学 · 物理学 2017-07-21 A. E. Cárcamo Hernández , I. de Medeiros Varzielas , E. Schumacher

The framed standard model (FSM), constructed initially for explaining the existence of three fermion generations and the hierarchical mass and mixing patterns of quarks and leptons, suggests also a "hidden sector" of particles including…

高能物理 - 唯象学 · 物理学 2018-12-26 Jose Bordes , H. M. Chan , S. T. Tsou

We review a class of models in which the Standard Model (SM) is augmented by vector-like leptons: one doublet and a singlet, which are odd under an unbroken discrete $Z_2$ symmetry. As a result, the neutral component of these additional…

高能物理 - 唯象学 · 物理学 2019-05-14 Subhaditya Bhattacharya , Purusottam Ghosh , Nirakar Sahoo , Narendra Sahu

Scalar singlet dark matter is one of the simplest and most predictive realisations of the WIMP (weakly-interacting massive particle) idea. Although the model is constrained from all directions by the latest experimental data, it still has…

高能物理 - 唯象学 · 物理学 2020-08-06 Peter Athron , Jonathan M. Cornell , Felix Kahlhoefer , James McKay , Pat Scott , Sebastian Wild

In supersymmetric standard models with multi Higgs doublet fields, selfcoupling constants in the Higgs potential come only from the D-terms at the tree level. We investigate the decoupling property of additional two heavier Higgs doublet…

高能物理 - 唯象学 · 物理学 2015-05-30 Mayumi Aoki , Shinya Kanemura , Tetsuo Shindou , Kei Yagyu

We consider Mirror Twin Higgs models in which the breaking of the global symmetry is realized linearly. In this scenario, the radial mode in the Higgs potential is present in the spectrum, and constitutes a second portal between the twin…

高能物理 - 唯象学 · 物理学 2018-03-28 Zackaria Chacko , Can Kilic , Saereh Najjari , Christopher B. Verhaaren

The scalar singlet model extends the Standard Model with the addition of a new gauge singlet scalar. We re-examine the limits on the new scalar from oblique parameter fits and from a global fit to precision electroweak observables and…

高能物理 - 唯象学 · 物理学 2021-04-28 Sally Dawson , Pier Paolo Giardino , Samuel Homiller

We study the allowed parameter space of the scalar sector in the superweak extension of the standard model (SM). The allowed region is defined by the conditions of (i) stability of the vacuum and (ii) perturbativity up to the Planck scale,…

高能物理 - 唯象学 · 物理学 2022-10-12 Zoltán Péli , Zoltán Trócsányi

The supersymmetric sector of minimal supersymmetric standard model (MSSM) possesses a U(1) R-symmetry which contains Z_2 matter parity. Non-zero neutrino masses, consistent with a 'redefined' R-symmetry, are possible through the see-saw…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Lazarides , Q. Shafi

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs iso-singlet superfield in addition to the two Higgs doublet superfields of the minimal supersymmetric extension. The Higgs sector and neutralino sectors of this…

高能物理 - 唯象学 · 物理学 2007-05-23 D. J. Miller

We present a novel extension of the Standard Model which fulfills the multiple-point principle without contradicting the Higgs particle mass measurement. In the model, the scalar potential has two minima where the scalar field has vacuum…

高能物理 - 唯象学 · 物理学 2017-06-21 Naoyuki Haba , Toshifumi Yamada

Measurements of CP asymmetries in B decays will soon be made at $B$ factories and hadron machines. In light of this, we review and update the profile of the CKM unitarity triangle and the resulting CP asymmetries in B decays. This is done…

高能物理 - 唯象学 · 物理学 2007-05-23 Ahmed Ali , David London

We develop benchmarks for resonant di-scalar production in the generic complex singlet scalar extension of the Standard Model (SM), which contains two new scalars. These benchmarks maximize di-scalar resonant production: $pp\rightarrow h_2…

高能物理 - 唯象学 · 物理学 2024-09-13 Samuel D. Lane , Ian M. Lewis , Matthew Sullivan

We present the first version of a new tool to scan the parameter space of generic scalar potentials, ScannerS. The main goal of ScannerS is to help distinguish between different patterns of symmetry breaking for each scalar potential. In…

高能物理 - 唯象学 · 物理学 2015-06-12 Rita Coimbra , Marco O. P. Sampaio , Rui Santos

We study an extension of the Standard Model (SM) in which two copies of the SM Higgs doublet are added to the scalar sector. These extra doublets do not develop a vacuum expectation value, hence, they are \textit{inert}. This essentially…

高能物理 - 唯象学 · 物理学 2020-04-08 A. Cordero-Cid , J. Hernández-Sánchez , V. Keus , S. Moretti , D. Rojas , D. Sokołowska

We introduce a two real scalar singlet extension of the two Higgs doublet model. We study the vacuum structure, the bounded from below conditions, the restrictions from the oblique parameters S,T and U, as well as the unitarity constraints.…

高能物理 - 唯象学 · 物理学 2026-04-28 Rafael Boto , Tiago P. Rebelo , Jorge C. Romão , João P. Silva

Zero-shot generalization (ZSG) to unseen dynamics is a major challenge for creating generally capable embodied agents. To address the broader challenge, we start with the simpler setting of contextual reinforcement learning (cRL), assuming…

机器学习 · 计算机科学 2024-08-06 Sai Prasanna , Karim Farid , Raghu Rajan , André Biedenkapp

We study the structure of the Hilbert space of gauged matrix models with a global symmetry. In the first part of the paper, we focus on bosonic matrix models with $U(2)$ gauge group and $SO(d)$ global symmetry, and consider singlets under…

高能物理 - 理论 · 物理学 2026-01-15 Adwait Gaikwad , Tanay Kibe , Sam van Leuven , Kayleigh Mathieson

The Inert Doublet Model is one of the simplest extensions of the Standard Model, providing a dark matter candidate. It is a two Higgs doublet model with a discrete $Z_2$ symmetry, that prevents the scalars of the second doublet (inert…