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The study of the properties of the scalar boson recently discovered at the LHC (ATLAS and CMS experiments) may allow us to know whether it is well described by the Standard Model. In the case where deviations from SM predictions are…

High Energy Physics - Phenomenology · Physics 2015-07-22 Hermes Belusca-Maito

Although the studies of tensor structure of the Higgs boson interactions with vector bosons and fermions at CMS and ATLAS experiments have established that the $J^{\mathrm{PC}}$ quantum numbers of the Higgs boson should be $0^{++}$, small…

High Energy Physics - Phenomenology · Physics 2023-08-01 N. Vukašinović , I. Božović-Jelisavčić , G. Kačarević

We investigate the sensitivity of top-Higgs coupling by considering the associated vertex as CP phase ($\zeta_t$) dependent through the process $p\, e^- \to \bar t \,h \,\nu_e$ in the future Large Hadron electron collider. In particular the…

High Energy Physics - Phenomenology · Physics 2017-05-04 Baradhwaj Coleppa , Mukesh Kumar , Satendra Kumar , Bruce Mellado

Muon colliders are an exciting possibility for reaching the highest energies possible on the shortest timescale. They potentially combine the greatest strengths of $e^+e^-$ and $pp$ colliders by bridging the energy versus precision…

High Energy Physics - Phenomenology · Physics 2022-09-07 Matthew Forslund , Patrick Meade

An important physics goal of a possible next-generation high-energy hadron collider will be precision characterisation of the Higgs sector and electroweak symmetry breaking. A crucial part of understanding the nature of electroweak symmetry…

High Energy Physics - Phenomenology · Physics 2015-06-23 Alan J. Barr , Matthew J. Dolan , Christoph Englert , Danilo Enoque Ferreira de Lima , Michael Spannowsky

The future FCC-ee collider is designed to deliver $\mathrm{e^+e^-}$ collisions to study with ultimate precision the Z, W, and Higgs bosons, and the top quark. In a high-statistics scan around the Z pole, $1.3\times 10^{11}$ events…

High Energy Physics - Experiment · Physics 2018-12-18 Mogens Dam

This paper is an updated version of the invited plenary talk given at the XXII Physics in Collision Conference at Stanford, (June 2002). The measurements performed at LEP and SLC have substantially improved the precision of the tests of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Frederic Teubert

The properties of a Higgs boson candidate are measured in the H to ZZ to 4l decay channel, with l = e, mu, using data from pp collisions corresponding to an integrated luminosity of 5.1 inverse femtobarns at the center-of-mass energy of…

High Energy Physics - Experiment · Physics 2014-06-11 CMS Collaboration

The precision measurements of Higgs boson observables will be critical in the interpretation of the dynamics responsible for electroweak symmetry breaking. The capabilities of the ILC and CLIC for precision Higgs studies are well…

High Energy Physics - Phenomenology · Physics 2012-03-14 Howard E. Haber

The Higgs boson $H$ has the largest coupling to the top quark $t$ among the standard model (SM) fermions. This is one of the ideal places to investigate new physics beyond SM. In this work, we study the potential of determining Higgs boson…

High Energy Physics - Phenomenology · Physics 2015-09-30 Xiao-Gang He , Guan-Nan Li , Ya-Juan Zheng

Probing the properties of the discovered Higgs boson may tell us whether or not it is the same particle as the one predicted by the Standard Model. To this aim we parametrize deviations of the Higgs couplings to matter from the Standard…

High Energy Physics - Phenomenology · Physics 2016-02-22 Hermes Belusca-Maito

We study chargino pair production on the heavy Higgs resonances at a muon collider in the MSSM. At $\sqrt{s} \approx 350$ GeV cross sections up to 2 pb are reached depending on the supersymmetric scenario and the beam energy spread. The…

High Energy Physics - Phenomenology · Physics 2011-09-13 H. Fraas , F. Franke , G. Moortgat-Pick , F. von der Pahlen , A. Wagner

Higgs-boson production at the Photon Collider at TESLA is studied for masses from 180 to 350 GeV, using realistic luminosity spectra and detector simulation. Parity of the SM Higgs-boson can be verified from the measurement of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Niezurawski , A. F. Zarnecki , M. Krawczyk

Following a brief outline of the CLIC project, this talk summarizes some of the principal motivations for an e+ e- collider with E_CM = 3 TeV. It is shown by several examples that CLIC would represent a significant step beyond the LHC and…

High Energy Physics - Phenomenology · Physics 2008-11-11 John Ellis

This report will review the Higgs boson properties: the mass, the total width and the couplings to fermions and bosons. The measurements have been performed with the data collected in 2011 and 2012 at the LHC accelerator at CERN by the…

High Energy Physics - Phenomenology · Physics 2017-03-08 Chiara Mariotti , Giampiero Passarino

The interpretation of Higgs data is typically based on different assumptions about whether there can be additional decay modes of the Higgs or if any couplings can be bounded by theoretical arguments. Going beyond these assumptions requires…

High Energy Physics - Phenomenology · Physics 2024-01-29 Matthew Forslund , Patrick Meade

We study quantum entanglement and test violation of Bell-type inequality at the Circular Electron Positron Collider (CEPC), which is one of the most attractive future colliders. It's a promising particle collider designed to search new…

High Energy Physics - Phenomenology · Physics 2024-11-06 Youpeng Wu , Ruobing Jiang , Alim Ruzi , Yong Ban , Qiang Li

Run 1 at the LHC was very successful with the discovery of a new boson. The boson's properties are found to be compatible with those of the Standard Model Higgs boson. It is now revealing the mechanism of electroweak symmetry breaking and…

High Energy Physics - Experiment · Physics 2016-09-28 M. Slawinska

Following the discovery of the Higgs boson at LHC, new large colliders are being studied by the international high-energy community to explore Higgs physics in detail and new physics beyond the Standard Model. In China, a two-stage circular…

At the end of 2008, the Large Hadron Collider (LHC) will come into operation and the two experiments ATLAS and CMS will start taking data from proton-proton collisions at a center-of-mass energy of \sqrt{s}=14 TeV. In preparation for the…

High Energy Physics - Experiment · Physics 2008-09-25 Wolfgang F. Mader