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If no new physics signals are found, in the coming years, at the Large Hadron Collider Run-2, an increase in precision of the Higgs couplings measurements will shift the dicussion to the effects of higher order corrections. In Beyond the…

High Energy Physics - Phenomenology · Physics 2017-08-02 Raul Costa , Marco O. P. Sampaio , Rui Santos

We discuss two models that extend the Standard Model by additional particles, leading to additional scalar states, and also providing dark matter candidates. We briefly review the current constraints and comment on production cross sections…

High Energy Physics - Phenomenology · Physics 2021-10-15 Tania Robens

In this conference report a summary is given on the theoretical work that has contributed to provide accurate theoretical predictions for testing the standard model in present and future experiments. Precision calculations for the vector…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Hollik

We study a minimal extension to the Standard Model with an additional real scalar triplet, $\Sigma$, and a single vector-like quark, $T$. This class of models appear naturally in extensions of the Littlest Higgs model that incorporate dark…

High Energy Physics - Phenomenology · Physics 2015-06-22 Estefania Coluccio Leskow , Travis Martin , Alejandro de la Puente

The Higgs sectors of supersymmetric extensions of the Standard Model have two doublets in the minimal version (MSSM), and two doublets plus a singlet in two others: with (UMSSM) and without (NMSSM) an extra U(1)'. A very concise comparison…

High Energy Physics - Phenomenology · Physics 2011-04-20 Ernest Ma , Markos Maniatis

The THDMa is a new physics model that extends the scalar sector of the Standard Model by an additional doublet as well as a pseudoscalar singlet and allows for mixing between all possible scalar states. In the gauge-eigenbasis, the…

High Energy Physics - Phenomenology · Physics 2021-12-15 Tania Robens

We discuss the phenomenology of several Beyond the Standard Model (SM) extensions that include extended Higgs sectors. The models discussed are: the SM extended by a complex singlet field (CxSM), the 2-Higgs-Doublet Model with a…

High Energy Physics - Phenomenology · Physics 2019-03-27 Duarte Azevedo , Pedro Ferreira , M. Margarete Mühlleitner , Rui Santos , Jonas Wittbrodt

We analyze a simple extension of the Standard Model (SM) obtained by adding a complex singlet to the scalar sector (cxSM). We show that the cxSM can contain one or two viable cold dark matter candidates and analyze the conditions on the…

High Energy Physics - Phenomenology · Physics 2009-02-03 Vernon Barger , Paul Langacker , Mathew McCaskey , Michael Ramsey-Musolf , Gabe Shaughnessy

The stability of the electroweak potential is a very important constraint for models of new physics. At the moment, it is standard for Two-Higgs doublet models (THDM), singlet or triplet extensions of the standard model to perform these…

High Energy Physics - Phenomenology · Physics 2018-01-17 Florian Staub

We give a brief review of beyond-the-Standard Model (BSM) extensions of the Standard Model (SM) Higgs sector. Going from very simple to more complicated models, our survey includes models with additional scalar singlet fields, the Two Higgs…

High Energy Physics - Phenomenology · Physics 2019-08-30 Tim Stefaniak

The multiple point principle, according to which several vacuum states with the same energy density exist, is put forward as a fine-tuning mechanism predicting the exponentially huge ratio between the fundamental and weak scales in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. D. Froggatt , L. V. Laperashvili , H. B. Nielsen

We define benchmark models for SUSY searches at the LHC, including the CMSSM, NUHM, mGMSB, mAMSB, MM-AMSB and p19MSSM, as well as models with R-parity violation and the NMSSM. Within the parameter spaces of these models, we propose…

We explore a two component dark matter model with a fermion and a scalar. In this scenario the Standard Model (SM) is extended by a fermion, a scalar and an additional pseudo scalar. The fermionic component is assumed to have a global ${\rm…

High Energy Physics - Phenomenology · Physics 2017-10-25 Amit Dutta Banik , Madhurima Pandey , Debasish Majumdar , Anirban Biswas

A scalar singlet, coupled to the other particles only through its mixing with the Higgs boson, appears in several motivated extensions of the Standard Model. The prospects for the discovery of a generic singlet at the various stages of the…

High Energy Physics - Phenomenology · Physics 2015-12-24 Dario Buttazzo

Nowadays, one needs to consider seriously the possibility that a large separation between the scale of new physics and the electroweak scale exists. Nevertheless, there are still observables in this scenario, in particular the Higgs mass,…

High Energy Physics - Phenomenology · Physics 2019-03-12 Martin Gabelmann , Margarete Mühlleitner , Florian Staub

After the observation in 2012 of a new scalar particle closely resembling the Higgs boson of the Standard Model of particle physics, there is a general consensus that there must be Physics Beyond the Standard Model, with present experiments…

High Energy Physics - Phenomenology · Physics 2025-09-24 Rafael Boto

The Dualized Standard Model offers a natural place both to Higgs fields and to fermion generations with Higgs fields appearing as frame vectors in internal symmetry space and generation appearing as dual colour. If they are assigned those…

High Energy Physics - Phenomenology · Physics 2011-04-15 HM Chan , ST Tsou

We describe various aspects of statistical mechanics defined in the complex temperature or coupling-constant plane. Using exactly solvable models, we analyse such aspects as renormalization group flows in the complex plane, the distribution…

High Energy Physics - Lattice · Physics 2009-10-22 Poul H. Damgaard , Urs M. Heller

Latent world models can contain the state needed for control, yet their terminal-cost interface can expose the planner to the wrong decision-relevant information. In common latent MPC, candidate sequences are ranked by Euclidean distance…

Machine Learning · Computer Science 2026-05-22 Liangyu Li , Shengzhi Wang , Qingwen Liu

Many new physics scenarios beyond the Standard Model (BSM) necessitate the existence of new neutral and/or charged scalar fields, which might couple to the SM charged leptons (but not hadrons), and thus, can give rise to BSM signals while…

High Energy Physics - Phenomenology · Physics 2023-08-16 Fang Xu