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After the Higgs boson discovery in 2012, the experiments at the LHC are continuing to study this particle and look for physics beyond the standard model. Some of the Higgs boson properties, such as the mass, has been measured with…

高能物理 - 实验 · 物理学 2024-05-24 Pallabi Das

The prospects for the search of the Standard Model Higgs boson with the CMS experiment at the LHC are presented. The analyses rely on a full simulation of the detector response and emphasis is put on explicit strategies for the measurement…

高能物理 - 实验 · 物理学 2009-10-20 Tommaso Dorigo

The great successes achieved by the Standard Model(SM) lead us to believe the existence of the Higgs particle. On the other hand, there are many evidences indicate that some unknown dark matter particle must exist in our universe. To…

综合物理 · 物理学 2013-01-01 Xian-Qiao Yu

The $A\to Z^{(*)}h$ decay signature has been highlighted as possibly being the first testable probe of the Standard Model (SM) Higgs boson discovered in 2012 ($h$) interacting with Higgs companion states, such as those existing in a 2-Higgs…

高能物理 - 唯象学 · 物理学 2023-10-26 W. Esmail , A. Hammad , S. Moretti

Precision electroweak data presently favors a weakly-coupled Higgs sector as the mechanism responsible for electroweak symmetry breaking. Low-energy supersymmetry provides a natural framework for weakly-coupled elementary scalars. In this…

高能物理 - 唯象学 · 物理学 2008-11-26 Marcela Carena , Howard E. Haber

A prospective analysis for the search of the Standard Model (SM) Higgs boson with the CMS detector is presented in the context of the early LHC data. The aim is to establish an analysis strategy for inclusive production of the Higgs boson…

高能物理 - 唯象学 · 物理学 2008-10-09 Rebeca Gonzalez Suarez

Gauge singlet extensions of the Standard Model (SM) scalar sector may help remedy its theoretical and phenomenological shortcomings while solving outstanding problems in cosmology. Depending on the symmetries of the scalar potential, such…

高能物理 - 唯象学 · 物理学 2008-11-26 Vernon Barger , Paul Langacker , Mathew McCaskey , Michael J. Ramsey-Musolf , Gabe Shaughnessy

The excluded tan(beta) range and Higgs boson mass regions in the framework of the Minimal Supersymmetric extension of the Standard Model (MSSM) depend on several parameters. The Higgs boson masses, cross-sections and branching fractions…

高能物理 - 唯象学 · 物理学 2009-10-31 Andre Sopczak

The LHC discovery of a light Higgs particle $h^0$ (125GeV) opens up new prospect for searching heavier Higgs boson(s) at the LHC Run-2, which will unambiguously point to new physics beyond the standard model (SM). We study the detection of…

高能物理 - 唯象学 · 物理学 2016-03-23 Lan-Chun Lü , Chun Du , Yaquan Fang , Hong-Jian He , Huijun Zhang

In the next-to minimal supersymmetric standard model (NMSSM) one additional singlet-like Higgs boson with small couplings to standard model (SM) particles is introduced. Although the mass can be well below the discovered 125 GeV Higgs boson…

高能物理 - 唯象学 · 物理学 2018-05-28 C. Beskidt , W. de Boer , D. I. Kazakov

Statistically significant tensions between the Standard Model (SM) predictions and the measured lepton distributions in differential top cross-sections emerged in LHC Run~1 data and became even more pronounced in Run~2 analyses. Due to the…

高能物理 - 唯象学 · 物理学 2025-02-04 Sumit Banik , Guglielmo Coloretti , Andreas Crivellin , Bruce Mellado

We update the constraints on two-Higgs-doublet models (2HDMs) focusing on the parameter space relevant to explain the present muon $g$$-$$2$ anomaly, $\Delta a_{\mu}$, in four different types of models, type I, II, "lepton specific" (or X)…

高能物理 - 唯象学 · 物理学 2015-06-22 Alessandro Broggio , Eung Jin Chun , Massimo Passera , Ketan M. Patel , Sudhir K. Vempati

A hidden sector containing light long-lived particles provides a well-motivated place to find new physics. The recently proposed MATHUSLA experiment has the potential to be extremely sensitive to light particles originating from rare meson…

高能物理 - 唯象学 · 物理学 2018-04-04 Jared A. Evans

The U(1) extended supersymmetric standard model (UMSSM) can accommodate a Higgs boson at 125 GeV without relying on large corrections from the top/stop sector. After imposing LHC results on the Higgs sector, on B-physics and on new particle…

高能物理 - 唯象学 · 物理学 2015-09-25 G. Belanger , J. Da Silva , U. Laa , A. Pukhov

This is a personal summary of points made during, and arising from the symposium, drawing largely from the talks presented there. The Standard Model is doing fine, including QCD, the electroweak sector and flavour physics. The good news is…

高能物理 - 唯象学 · 物理学 2015-06-17 John Ellis

Recently, the study of long-lived particles (LLPs) has attracted increasing attention. In this work, we analyze the full parameter space of the Type-I Two-Higgs-Doublet Model (2HDM) that allows for light long-lived scalar ($H$) and…

高能物理 - 唯象学 · 物理学 2025-08-19 Xueying Qi , Huayang Song , Wei Su

We investigate direct detection rates for Dark Matter candidates arise in a $SU(2)_L\times U(1)_Y$ with an additional doublet Higgs proposed by Barbieri, Hall and Rychkov. We refer this model as `Heavy Higgs Model'. The Standard Model Higgs…

高能物理 - 唯象学 · 物理学 2008-11-26 Debasish Majumdar , Ambar Ghosal

The quest for the Higgs boson of the Standard Model, which was a cornerstone in the physics programme at particle colliders operating at the energy frontier for several decades, is the subject of this review. After reviewing the formulation…

高能物理 - 唯象学 · 物理学 2015-06-12 S. Dittmaier , M. Schumacher

We study the Large Hadron Collider (LHC) search potential of a $\mathbb{Z}_4$-based two Higgs doublet model which can simultaneously explain the muon $g-2$ anomaly and the observed dark matter. The neutral scalars in the second Higgs…

高能物理 - 唯象学 · 物理学 2023-05-31 Monika Blanke , Syuhei Iguro

The Standard Model (SM) of particle physics was finalized in its current form in the mid-1970s, and has been extensively tested and confirmed ever since, with the discovery of the Higgs boson in 2012 being the last missing piece. While no…

高能物理 - 唯象学 · 物理学 2021-11-29 Andreas Crivellin , Martin Hoferichter