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We comment on the Standard Model Higgs boson evidence from LHC. We propose that the new resonance at 125 GeV could be interpreted as a pseudoscalar meson with quantum number $J^{PC} = 0^{- +}$. We show that this pseudoscalar could mimic the…

高能物理 - 唯象学 · 物理学 2012-09-17 Paolo Cea

A summary of the methods used to make a precision measurement of the Higgs boson mass is presented. The final mass value for the Higgs boson is measured to be $m_{\rm H} = 125.26 \pm 0.21\ \mathrm{GeV}$. This analysis considers the…

高能物理 - 实验 · 物理学 2019-10-23 Jake Rosenzweig

In this paper, we examine the potential of Higgs boson production associated with a photon at the LHC to probe the new physics effects in the framework of the standard model effective field theory. It is shown that the differential…

高能物理 - 唯象学 · 物理学 2017-09-21 Hamzeh Khanpour , Sara Khatibi , Mojtaba Mohammadi Najafabadi

We consider the search for the Higgs boson at a high-luminosity Fermilab Tevatron, an upgraded Tevatron of energy 3.5 TeV, and the CERN Large Hadron Collider, via $WH/ZH$ production followed by H -> bb~ and leptonic decay of the weak vector…

高能物理 - 唯象学 · 物理学 2009-10-28 A. Stange , W. Marciano , S. Willenbrock

We present the results of a study of Higgs triplet boson production arising in the Littlest Higgs, Left-Right Symmetric, and Georgi-Machacek models in the W^\pm W^\pm, W^\pm Z, W^+ W^-, and Z Z channels at the LHC. We focus on the…

高能物理 - 唯象学 · 物理学 2015-03-13 Stephen Godfrey , Ken Moats

Extra scalar fields are common in beyond Standard Model (SM) new physics, and they may mix with the 125 GeV SM-like Higgs boson discovered at the LHC. This fact suggests possible discovery channels for these new scalar fields with their…

高能物理 - 唯象学 · 物理学 2014-07-31 Ning Chen , Chun Du , Yaquan Fang , Lan-Chun Lü

If the recently discovered Higgs boson's couplings deviate from the Standard Model expectation, we may anticipate new resonant physics in the weak boson fusion channels resulting from high scale unitarity sum rules of longitudinal gauge…

高能物理 - 唯象学 · 物理学 2015-07-17 Christoph Englert , Philip Harris , Michael Spannowsky , Michihisa Takeuchi

The study aims to investigate the observability of pseudoscalar Higgs boson $A$ and neutral heavy CP even Higgs boson $H$, at different benchmark points, in the framework of type-I 2HDM. The study is done for $e^{-}e^{+}$ collisions at…

高能物理 - 唯象学 · 物理学 2022-04-06 Nadia Kausar , Ijaz Ahmed , Ather M. W

The possibility is discussed to observe the sparticle decay modes of the heavy MSSM Higgs bosons at the Large Hadron Collider. We focus on the heavy neutral Higgses, and argue that their decay into neutralinos may access an interesting…

高能物理 - 唯象学 · 物理学 2007-05-23 Filip Moortgat

We study the possibility of detecting the Higgs boson in the intermediate mass range via its two jet channel. We consider only Higgs bosons produced in association with a $t \bar{t}$ pair. Both $t$ and $\bar{t}$ are required to decay…

高能物理 - 唯象学 · 物理学 2009-12-30 T. Garavaglia , W. K. Kwong , Dan-di Wu

We present the latest ATLAS and CMS measurements of several properties of the Higgs boson, such as signal-strength modifiers for the main production modes, fiducial and differential cross sections, and the Higgs mass. We have analyzed the…

高能物理 - 实验 · 物理学 2017-10-20 Jónatan Piedra

The properties of the Higgs boson measured in bosonic decay channels ($H \rightarrow \gamma\gamma$, $H \rightarrow ZZ^* \rightarrow 4\ell$, $H \rightarrow WW^{*} \rightarrow \ell\nu\ell\nu$, $H \rightarrow Z\gamma$) with 25 fb$^{-1}$ of pp…

高能物理 - 实验 · 物理学 2014-09-16 Bruno Lenzi

A search for pairs of light neutral pseudoscalar bosons (A) resulting from the decay of a Higgs boson is performed. The search is conducted using LHC proton-proton collision data at $\sqrt{s}$ = 13 TeV, collected with the CMS detector in…

高能物理 - 实验 · 物理学 2026-05-12 CMS Collaboration

We explore the discovery potential of the supersymmetric Higgs bosons through $bg$ channel at Tevatron and LHC. Compared with the process of $qq' \to WH$, this channel is more advantigeous to finding the supersymmetric Higgs bosons at…

高能物理 - 唯象学 · 物理学 2009-10-31 Chao-Shang Huang , Shou-Hua Zhu

The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating…

高能物理 - 唯象学 · 物理学 2015-06-11 C. Garcia Cely , A. Ibarra , E. Molinaro , S. T. Petcov

We present searches for Higgs bosons decaying to the di-photon final state using up to 5.4/fb of data at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider. Whilst the branching ratio to the di-photon final state is small…

高能物理 - 实验 · 物理学 2011-04-22 Krisztian Peters

We explore the sensitivity of flavour changing b -> s transitions to a (sub-)GeV hidden sector with generic couplings to the Standard Model through the Higgs, vector and axion portals. The underlying two-body decays of B mesons, B -> X_s S…

高能物理 - 唯象学 · 物理学 2011-03-21 Brian Batell , Maxim Pospelov , Adam Ritz

We investigate the impact of interactions between hidden sectors and the discovered Higgs boson $h_{125}$, allowing for additional invisible decay channels of $h_{125}$. We perform $\chi^2$-fits to the measurements of the Higgs-boson cross…

高能物理 - 唯象学 · 物理学 2022-11-16 Thomas Biekötter , Mathias Pierre

The strategies recently developed to study Higgs boson properties at the LHC are reviewed. It is shown how to obtain model-independent determinations of couplings to fermions and gauge bosons by exploiting different production and decay…

高能物理 - 唯象学 · 物理学 2009-11-07 F. Piccinini , A. D. Polosa

A new boson with mass ~125 GeV and properties similar to the Standard Model Higgs has been discovered by both the ATLAS and CMS collaborations, with significant observation in the ZZ* to 4 leptons and the diphoton channels. In this work we…

高能物理 - 唯象学 · 物理学 2015-06-15 Aielet Efrati , Daniel Grossman , Yonit Hochberg