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We explore the room for possible deviations from the Standard Model (SM) Higgs boson coupling structure in a systematic study of Higgs coupling scale factor benchmark scenarios using the latest signal rate measurements from the Tevatron and…

高能物理 - 唯象学 · 物理学 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

A search for a Higgs boson in the decay channel ${\rm H} \rightarrow {\rm ZZ}^{(*)}$ with each Z boson decaying to an electron or muon pair is presented using pp collisions from the LHC at $\sqrt s$ = 7 TeV. The data analyzed correspond to…

高能物理 - 实验 · 物理学 2019-08-14 Mario Pelliccioni

After the recent discovery of a Standard Model Higgs boson-like particle at the LHC, the question of its couplings to known and unknown matter is eminent. In this letter, we present a method that allows for an enhancement in…

高能物理 - 唯象学 · 物理学 2013-05-30 Jeppe R. Andersen , Christoph Englert , Michael Spannowsky

The precision of the yield measurement of the Higgs boson decaying into a pair of $Z$ bosons process at the Circular Electron Positron Collider (CEPC) is evaluated. Including the recoil $Z$ boson associated with the Higgs production…

高能物理 - 实验 · 物理学 2021-03-19 Ryuta Kiuchi , Yanxi Gu , Min Zhong , Lingteng Kong , Alex Schuy , Shih-Chieh Hsu , Xin Shi , Kaili Zhang

We evaluate the expected measurement accuracy of the branching ratio of the Standard Model Higgs boson decaying into tau lepton pairs $h \to \tau ^+ \tau ^-$ at the ILC with a center-of-mass energy of $\sqrt{s} = 500$ GeV with a full…

高能物理 - 实验 · 物理学 2014-03-28 Shin-ichi Kawada , Keisuke Fujii , Taikan Suehara , Tohru Takahashi , Tomohiko Tanabe

Precision measurements of SM Higgs recoil mass and cross-section are performed with the Higgs-Strahlung process ee -> Zh, with Z -> mumu and Z -> ee at 230 GeV and 250 GeV center of mass energies, presuming Mh=120GeV, assuming the…

高能物理 - 实验 · 物理学 2009-09-30 Hengne Li , Francois Richard , Roman Poeschl , Zhiqing Zhang

A "Higgs factory", an electron-positron collider with center-of-mass energy of about 250 GeV, will measure the cross section of the Higgsstrahlung process, $e^+e^-\rightarrow hZ$, with sub-percent precision. This measurement is sensitive to…

高能物理 - 唯象学 · 物理学 2015-08-05 Nathaniel Craig , Marco Farina , Matthew McCullough , Maxim Perelstein

It is expected that hadron collider measurements of the Higgs boson mass using the decay h -> W^+W^-, followed by the leptonic decay of each W-boson, will be performed by fitting the shape of a distribution which is sensitive to the Higgs…

高能物理 - 唯象学 · 物理学 2010-04-15 Alan J. Barr , Ben Gripaios , Christopher Gorham Lester

Higgs boson properties are studied in the four-lepton decay channel (where lepton = $e$, $\mu$) using 139 fb$^{-1}$ of proton-proton collision data recorded at $\sqrt{s}$ = 13 TeV by the ATLAS experiment at the Large Hadron Collider. The…

高能物理 - 实验 · 物理学 2021-05-13 ATLAS Collaboration

We demonstrate a measurement of the Higgs boson mass by the method of energy scanning at photon-photon colliders, using the high energy edge of the photon spectrum. With an integrated luminosity of 50 $\rm{fb^{-1}}$ it is possible to…

高能物理 - 唯象学 · 物理学 2015-06-25 T. Ohgaki

Leptonic decays of the Higgs boson in the ZZ* channel yield what is known as the golden channel due to its clean signature and good total invariant mass resolution. In addition, the full kinematic distribution of the decay products can be…

高能物理 - 唯象学 · 物理学 2015-05-30 James S. Gainer , Kunal Kumar , Ian Low , Roberto Vega-Morales

In this paper, the statistical potential of the measurement of Higgs to $WW^{*}$ decay at the International Linear Collider (ILC) is presented. The Higgs boson with a mass of 125 GeV is produced through the Higgsstrahlung production…

高能物理 - 实验 · 物理学 2025-11-04 M. Pandurović

A search is presented for a high-mass Higgs boson in the $H\rightarrow\ell\ell\ell\ell$, $H\rightarrow\ell\ell\nu\nu$, $H\rightarrow\ell\ell qq$, and $H\rightarrow\nu\nu qq$ decay modes using the ATLAS detector at the CERN Large Hadron…

高能物理 - 实验 · 物理学 2016-03-08 ATLAS Collaboration

Measurements of the inclusive and differential fiducial cross sections for the Higgs boson production in the H $\to$ ZZ $\to$ 4$\ell$ ($\ell$ = e,$\mu$) decay channel are presented. The results are obtained from the analysis of…

高能物理 - 实验 · 物理学 2023-08-14 CMS Collaboration

The investigation of the properties of the Higgs boson, especially a test of the predicted linear dependence of the branching ratios on the mass of the final state is going to be an integral part of the physics program at colliders at the…

高能物理 - 实验 · 物理学 2015-06-11 Christian Grefe , Tomas Lastovicka , Jan Strube

Measurements of the inclusive and differential production cross sections for the Higgs boson in the diphoton decay channel are performed using the data set of proton-proton collisions at $\sqrt{s} =$ 13 TeV collected by the CMS experiment…

高能物理 - 实验 · 物理学 2019-02-06 CMS Collaboration

Differential Higgs boson (H) production cross sections are sensitive probes for physics beyond the standard model. New physics may contribute in the gluon-gluon fusion loop, the dominant Higgs boson production mechanism at the LHC, and…

高能物理 - 实验 · 物理学 2019-04-17 CMS 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

Precise measurement of the Higgs boson properties are important issues for the International Linear Collider (ILC) project to understand the particles mass generation mechanism which strongly related to the coupling with the Higgs boson.…

高能物理 - 实验 · 物理学 2012-02-23 Hiroaki Ono , Akiya Miyamoto

We propose a novel method using the $ZZ$-fusion channel and forward muon detection at high-energy muon colliders to address the challenge of the Higgs coupling-width degeneracy. Our approach enables inclusive Higgs rate measurement to 0.75%…

高能物理 - 唯象学 · 物理学 2024-01-18 Peiran Li , Zhen Liu , Kun-Feng Lyu