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相关论文: Reconstructing the 125 GeV SM Higgs Boson Through …

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A search for the Higgs boson decaying into a photon and a pair of electrons or muons with an invariant mass $m_{\ell\ell} < 30$ GeV is presented. The analysis is performed using 139 fb$^{-1}$ of proton-proton collision data, produced by the…

高能物理 - 实验 · 物理学 2021-06-15 ATLAS Collaboration

A search is conducted for a new beyond-the-Standard-Model boson using events where a Higgs boson with mass 125 GeV decays to four leptons ($\ell =$ $e$ or $\mu$). This decay is presumed to occur via an intermediate state which contains one…

高能物理 - 实验 · 物理学 2018-07-25 ATLAS Collaboration

A search for a Higgs boson decaying into a pair of electrons or muons and a photon is described. Higgs boson decays to a Z boson and a photon (H $\to$ Z$\gamma\to\ell\ell\gamma$, $\ell =$ e or $\mu$), or to two photons, one of which has an…

高能物理 - 实验 · 物理学 2018-11-29 CMS Collaboration

Properties of the Higgs boson with mass near 125 GeV are measured in proton-proton collisions with the CMS experiment at the LHC. Comprehensive sets of production and decay measurements are combined. The decay channels include gamma gamma,…

高能物理 - 实验 · 物理学 2015-06-16 CMS Collaboration

A search for the resonant production of high mass photon pairs associated with a leptonic or hadronic system has been performed using a data sample of 57.7 pb-1 collected at an average center-of-mass energy of 182.6 GeV with the OPAL…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

A search for a standard model Higgs boson decaying into a pair of tau leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 inverse…

高能物理 - 实验 · 物理学 2014-06-13 CMS Collaboration

Searches for the standard model Higgs boson are reviewed from the 2 TeV run of the Tevatron with ~ 10 fb-1 of recorded data, and from the 7 and 8 TeV runs of the LHC, with ~ 5 and ~ 6 fb-1, respectively, i.e., until the July-2012 discovery…

高能物理 - 实验 · 物理学 2014-06-11 Gregorio Bernardi , Matthew Herndon

A search for a Higgs boson decay $H\to\gamma^*\gamma\to\ell\ell\gamma$ is presented. The analysis is performed using proton-proton collision data recorded by the CMS detector at the CERN LHC at a centre-of-mass energy of 8 TeV,…

高能物理 - 实验 · 物理学 2016-01-06 Andrey Pozdnyakov

Results are presented from a search for the Higgs boson decay H $\to$ Z$\gamma$, where Z $\to$ $\ell^+\ell^-$ with $\ell$ = e or $\mu$. The search is performed using a sample of proton-proton (pp) collision data at a center-of-mass energy…

高能物理 - 实验 · 物理学 2023-06-05 CMS Collaboration

A search for a heavy Higgs boson H decaying into the observed Higgs boson h with a mass of 125 GeV and another Higgs boson h$_\mathrm{S}$ is presented. The h and h$_\mathrm{S}$ bosons are required to decay into a pair of tau leptons and a…

高能物理 - 实验 · 物理学 2021-11-16 CMS Collaboration

A search for the standard model Higgs boson decaying to a W-boson pair at the LHC is reported. The event sample corresponds to an integrated luminosity of 4.9 and 19.4 inverse femtobarns collected with the CMS detector in pp collisions at…

高能物理 - 实验 · 物理学 2014-03-11 CMS Collaboration

We present an alternative interpretation within the Standard Model of the new LHC resonance at $125 \; GeV$. We further elaborate on our previous proposal that the resonance at 125 GeV could be interpreted as a pseudoscalar meson with…

高能物理 - 唯象学 · 物理学 2017-03-14 Paolo Cea

The final state obtained when a Higgs boson decays to a photon and a Z boson has been mostly overlooked in current searches for a light Higgs boson. However, when the Z boson decays leptonically, all final state particles in this channel…

高能物理 - 唯象学 · 物理学 2015-03-19 James S. Gainer , Wai-Yee Keung , Ian Low , Pedro Schwaller

We analyse the signature of a light Higgs boson pair in the 2-Higgs Doublet Model(2HDM) Type-X (or lepton specific) over the parameter spaces allowed by theoretical self-consistency requirements as well as the latest experimental…

高能物理 - 唯象学 · 物理学 2024-01-17 Yan Ma , A. Arhrib , S. Moretti , S. Semlali , Y. Wang , Q. S. Yan

One of the cleanest signatures of a heavy Higgs boson in models with vectorlike leptons is $H\to e_4^\pm \ell^\mp \to h\ell^+\ell^-$ which, in two Higgs doublet model type-II, can even be the dominant decay mode of heavy Higgses. Among the…

高能物理 - 唯象学 · 物理学 2016-11-23 Radovan Dermisek , Enrico Lunghi , Seodong Shin

A Higgs particle produced in association with a Z boson and decaying into weak boson pairs is searched for in 336.4 1/pb of data collected by the L3 experiment at LEP at centre-of-mass energies from 200 to 209 GeV. Limits on the branching…

高能物理 - 实验 · 物理学 2012-08-27 L3 Collaboration

A very simple and transparent way for the mass definition of a new boson, probably Higgs (H), observed at LHC, decaying into 4 leptons, is presented. The obtained mass of H is 125.5+/-0.4 GeV with today statistics.

高能物理 - 实验 · 物理学 2015-12-08 V. Roinishvili

The ATLAS and CMS Collaborations reported that the observed number of Higgs boson decays into a $Z$ boson and a photon is $\mu = 2.2 \pm 0.7$ times higher than predicted by the Standard Model. Initially, this discrepancy was attributed to a…

高能物理 - 唯象学 · 物理学 2025-03-14 Aliaksei Kachanovich

A search is presented for a standard model-like Higgs boson decaying to muon pair or electron pair final states based on proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities…

高能物理 - 实验 · 物理学 2015-04-23 CMS Collaboration

Both Atlas and CMS have reported a discovery of a Standard Model-like Higgs boson $H$ of mass around 125 GeV. Consistency with the Standard Model implies the non-observation of non-SM like decay modes of the newly discovered particle.…

高能物理 - 唯象学 · 物理学 2012-12-03 Christoph Englert , Michael Spannowsky , Chris Wymant
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