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A search for decays to invisible particles of Higgs bosons produced in association with a top-antitop quark pair or a vector boson, which both decay to a fully hadronic final state, has been performed using proton-proton collision data…

高能物理 - 实验 · 物理学 2023-10-18 CMS Collaboration

A direct search for Higgs bosons produced via vector-boson fusion and subsequently decaying into invisible particles is reported. The analysis uses 139 $\text{fb}^{-1}$ of $pp$ collision data at a centre-of-mass energy of $\sqrt{s}$=13…

高能物理 - 实验 · 物理学 2022-08-18 ATLAS Collaboration

We present a comprehensive description of the Higgs-boson couplings to Standard Model fermions and bosons in Randall-Sundrum (RS) models with a Higgs sector localized on or near the infra-red brane. The analytic results for all relevant…

高能物理 - 唯象学 · 物理学 2015-06-22 Raoul Malm , Matthias Neubert , Christoph Schmell

Following a prediction made in Refs.~\cite{vonBuddenbrock:2015ema,Kumar:2016vut,vonBuddenbrock:2016rmr}, this paper focuses on multi-lepton signatures arising from two new hypothetical scalar bosons, $H$ and $S$, at the Large Hadron…

高能物理 - 唯象学 · 物理学 2018-09-05 Stefan von Buddenbrock , Alan S. Cornell , Abdualazem Fadol , Mukesh Kumar , Bruce Mellado , Xifeng Ruan

Production of the Standard Model Higgs-boson at the Photon Collider at TESLA is studied for the Higgs-boson masses above 150 GeV. Simulation of signal and background processes takes into account realistic luminosity spectra and detector…

高能物理 - 唯象学 · 物理学 2009-11-07 P. Niezurawski , A. F. Zarnecki , M. Krawczyk

The most recent LHC data have provided a considerable improvement in the precision with which various Higgs production and decay channels have been measured. Using all available public results from ATLAS, CMS and the Tevatron, we derive for…

高能物理 - 唯象学 · 物理学 2013-10-30 G. Belanger , B. Dumont , U. Ellwanger , J. F. Gunion , S. Kraml

The discovery of Higgs boson plays a crucial role in understanding the electroweak symmetry breaking sector. From now on, solving the dynamics of this sector needs precision measurements of the couplings of the Higgs boson to the standard…

高能物理 - 唯象学 · 物理学 2013-05-17 A. Senol

A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson H0, an intermediate charged Higgs boson pair H+-, and a light Higgs boson h0. The analysis searches for events involving the…

高能物理 - 实验 · 物理学 2017-12-21 ATLAS Collaboration

We study the indirect effects of new physics on the phenomenology of the recently discovered "Higgs-like" particle. In a model independent framework these effects can be parametrized in terms of an effective Lagrangian at the electroweak…

高能物理 - 唯象学 · 物理学 2013-10-29 Tyler Corbett , O. J. P. Eboli , J. Gonzalez-Fraile , M. C. Gonzalez-Garcia

We report on a search for the standard model Higgs boson produced in association with a vector boson in the full data set of proton-antiproton collisions at $\sqrt{s} = 1.96$ TeV recorded by the CDF II detector at the Tevatron,…

高能物理 - 实验 · 物理学 2013-05-30 The CDF Collaboration

Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter…

高能物理 - 实验 · 物理学 2023-11-27 ATLAS Collaboration

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top quark (the top squark) and the Higgs boson (higgsino) are…

高能物理 - 实验 · 物理学 2014-04-29 CMS Collaboration

Recently the ATLAS and CMS experiments have presented data hinting at the presence of a Higgs boson at $m_h\simeq125$ GeV. The best-fit $h\rightarrow\gamma\gamma$ rate averaged over the two experiments is approximately $2.1\pm0.5$ times the…

高能物理 - 唯象学 · 物理学 2012-07-03 Patrick Draper , David McKeen

Many models of Beyond the Standard Model physics involve heavy colored fermions. We study models where the new fermions have vector interactions and examine the connection between electroweak precision measurements and Higgs production. In…

高能物理 - 唯象学 · 物理学 2013-05-30 S. Dawson , E. Furlan

A detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample corresponds to…

高能物理 - 实验 · 物理学 2013-07-05 CMS Collaboration

We investigate the possibility of contributions from physics beyond the Standard Model (SM) to the Higgs couplings, in the light of the LHC data. The work is performed within an interim framework where the magnitude of the Higgs production…

高能物理 - 唯象学 · 物理学 2015-10-02 Johannes Bergstrom , Stella Riad

The Standard Model of particle physics contains about two dozen parameters - such as particle masses - whose origins are still unknown and cannot be predicted, but whose values are constrained through their interactions. In particular, the…

高能物理 - 实验 · 物理学 2012-08-27 D0 Collaboration

A search for the Standard Model Higgs boson has been performed in the H \rightarrow WW \rightarrow l{\nu}jj channel in 1.04 fb-1 of pp collisions at \surds = 7 TeV collected with the ATLAS detector at the Large Hadron Collider. No…

高能物理 - 实验 · 物理学 2019-08-13 Mark S. Neubauer

The search for the Standard Model Higgs boson in proton-antiproton collisions at 1.96 TeV performed by CDF and D0 collaborations at the Tevatron collider is reported in this paper. The Higgs candidate events are reconstructed using…

高能物理 - 实验 · 物理学 2011-02-15 Paolo Mastrandrea

In the quasi-inert Higgs doublet model, we study the LHC diphoton rate for a standard model-like Higgs boson and the top quark forward-backward asymmetry at Tevatron. Taking into account the constraints from the vacuum stability, unitarity,…

高能物理 - 唯象学 · 物理学 2015-06-04 Lei Wang , Xiao-Fang Han