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A search for the standard model Higgs boson is performed in a data sample corresponding to an integrated luminosity of 1.1 fb$^{-1}$, recorded by the CMS detector in proton-proton collisions at the LHC with a 7 TeV center-of-mass energy.…

高能物理 - 实验 · 物理学 2015-06-03 Michele De Gruttola

In the framework of the simplest little Higgs model (SLHM), we study the production of a pair of neutral CP-even Higgs bosons at the LHC. First, we examine the production rate and find that it can be significantly larger than the SM…

高能物理 - 唯象学 · 物理学 2009-10-18 Xiao-Fang Han , Lei Wang , Jin Min Yang

Combined measurements of Higgs boson production and decay rates are reported, representing the most comprehensive study performed by the CMS Collaboration to date. The included analyses use proton-proton collision data recorded by the CMS…

高能物理 - 实验 · 物理学 2026-02-24 CMS Collaboration

The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a…

高能物理 - 唯象学 · 物理学 2015-03-13 Jose Ramon Espinosa , Christophe Grojean , Margarete Mühlleitner

We investigate the production of the pseudoscalar Higgs boson $A$ at muon colliders within the framework of Type-II and Type-X Two-Higgs-Doublet Model (2HDM) at the Next-to-Leading Order (NLO), utilizing an Effective Field Theory (EFT)…

高能物理 - 唯象学 · 物理学 2025-05-06 Fayez Abu-Ajamieh , Sagar Modak , Samadrita Mukherjee , Sudhir K Vempati

We report the observation of Higgs boson decays to $WW^{\ast}$ based on an excess over background of $6.1$ standard deviations in the dilepton final state, where the Standard Model expectation is $5.8$ standard deviations. Evidence for the…

高能物理 - 实验 · 物理学 2015-08-24 ATLAS Collaboration

We explore for the first time the possibilities to measure an intermediate-mass (mH = 115-140 GeV/c^2) Standard-Model Higgs boson in electromagnetic proton-lead (pPb) interactions at the CERN Large Hadron Collider (LHC) via its b-bbar…

高能物理 - 唯象学 · 物理学 2010-01-27 David d'Enterria , Jean-Philippe Lansberg

The CMS collaboration has recently produced results of a number of searches for new physics processes using data collected during the 2011 run of the Large Hadron Collider. Up to 5 inverse femtobarns of proton-proton collisions at 7 TeV…

高能物理 - 实验 · 物理学 2019-08-13 Tommaso Dorigo

In this paper, we construct an effective model that describes the electroweak symmetry breaking sector by means of composite Higgs-like scalars, following the ideas of Minimal Walking Technicolor (MWT). We argue that, because of the general…

高能物理 - 唯象学 · 物理学 2010-03-19 Alfonso R. Zerwekh

A measurement of the Higgs boson production cross sections via associated $WH$ and $ZH$ production using $H \rightarrow WW^{\ast} \rightarrow \ell\nu\ell\nu$ decays, where $\ell$ stands for either an electron or a muon, is presented.…

高能物理 - 实验 · 物理学 2019-10-03 ATLAS Collaboration

A feasibility study for the Standard Model Higgs boson produced in association with a single top-quark or a top-quark pair and a photon (\tHa\, and \ttHa) is presented, using simulated pp collision data corresponding to an integrated…

高能物理 - 实验 · 物理学 2025-06-02 Ashfaq Ahmad , Kamran Ahmad , Shoaib Ahmad Khan

Precision measurements of Higgs boson differential production cross sections are a key tool to probe the properties of the Higgs boson and test the standard model. New physics can affect both Higgs boson production and decay, leading to…

高能物理 - 实验 · 物理学 2026-04-30 CMS Collaboration

We provide a comparative study of the Higgs boson mass measurements based on two approaches to the dileptonic decay of W bosons produced by the Higgs boson decay, one using the kinematic variable M_T^true and the other using the…

高能物理 - 唯象学 · 物理学 2011-01-26 Kiwoon Choi , Jae Sik Lee , Chan Beom Park

Combined analyses of the Higgs boson production and decay rates as well as its coupling strengths to vector bosons and fermions are presented. The combinations include the results of the analyses of the $H\to\gamma\gamma,\, ZZ^*,\, WW^*,\,…

高能物理 - 实验 · 物理学 2016-06-17 ATLAS Collaboration

The search for the Higgs boson is one of the main physics goals of the Large Hadron Collider (LHC) and its two multi-purpose experiments, ATLAS and CMS. Vector boson fusion is the second largest production process for a standard model Higgs…

高能物理 - 唯象学 · 物理学 2007-05-23 Iris Rottlaender

The charged Higgs boson plays an essential role in distinguishing between a wide variety of standard model extensions with multiple Higgs doublets, and has been searched for in various collider experiments. This paper expands our previous…

高能物理 - 唯象学 · 物理学 2023-09-12 ChunHao Fu , Jun Gao

The $2\rightarrow 3$ scattering of longitudinal vector bosons (VBS) has been proven to be a complementary channel to measure the Higgs self-couplings in the Standard Model (SM) and the SM effective field theory (SMEFT) at colliders. We…

高能物理 - 唯象学 · 物理学 2022-04-06 Junmou Chen , Tong Li , Chih-Ting Lu , Yongcheng Wu , Chang-Yuan Yao

After the discovery of a Higgs boson, the measurements of its properties are at the forefront of research. The determination of the associated production of a Higgs boson and a pair of top quarks is of particular importance as the ttH…

高能物理 - 唯象学 · 物理学 2016-12-31 Andre Sopczak

Experimental analyses often use jet binning to distinguish between different kinematic regimes and separate contributions from background processes. To accurately model theoretical uncertainties in these measurements, a consistent…

高能物理 - 唯象学 · 物理学 2014-04-30 Radja Boughezal , Xiaohui Liu , Frank Petriello , Frank J. Tackmann , Jonathan R. Walsh

We have investigated the signal for physics beyond the Standard Model via Higgs plus photon final state, hitherto unobserved at the LHC, in the framework of Standard Model Effective Field Theory. Using the relevant dimension-6 operators, we…

高能物理 - 唯象学 · 物理学 2023-05-17 Tisa Biswas , Anindya Datta