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The measurements performed at LEP and SLC have substantially improved the precision of the test of the Minimal Standard Model. The precision is such that there is sensitivity to pure weak radiative corrections. This allows to indirectly…

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

Properties of the Higgs boson are measured in the H to ZZ to 4l (l= e, mu) decay channel. A data sample of proton-proton collisions at sqrt(s) = 13 TeV, collected with the CMS detector at the LHC and corresponding to an integrated…

High Energy Physics - Experiment · Physics 2017-11-21 CMS Collaboration

In the context of the $B-L$ Supersymmetric Standard Model (BLSSM), we investigate the consistency of a light Higgs boson, with mass around $90-95$ GeV, with the results of a search performed by the CMS collaboration in the di-photon channel…

High Energy Physics - Phenomenology · Physics 2020-12-10 Ahmed Ali Abdelalim , Biswaranjan Das , Shaaban Khalil , Stefano Moretti

We examine the prospects for measuring the \gaga branching fraction of a Standard Model-like Higgs boson with a mass of 120 GeV at the future TESLA linear \ee collider, assuming an integrated luminosity of 1 ab$^{-1}$ and center-of-mass…

High Energy Physics - Phenomenology · Physics 2009-01-07 E. Boos , J. -C. Brient , D. W. Reid , H. J. Schreiber , R. Shanidze

The strength of the Yukawa coupling of the leptons and quarks with the Higgs boson is uniquely determined by the Higgs mechanism for generating masses in the Standard Model. The top-Higgs coupling can be measured directly in the process…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Dittmaier , M. Krämer , Y. Liao , M. Spira , P. M. Zerwas

We summarize the possible processes which may be used to search for a Higgs boson, of mass in the range 114-130 GeV, at the LHC. We discuss, in detail, two processes with rapidity gaps: exclusive Higgs production with tagged outgoing…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. De Roeck , V. A. Khoze , A. D. Martin , R. Orava , M. G. Ryskin

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…

High Energy Physics - Phenomenology · Physics 2015-03-19 James S. Gainer , Wai-Yee Keung , Ian Low , Pedro Schwaller

The LHC Run-1 was very successful and included the discovery of a new particle with mass of about 125 GeV compatible with the Higgs boson predicted by the Standard Model. The prospects for Higgs physics at the high-luminosity LHC and at…

High Energy Physics - Experiment · Physics 2015-09-30 Flavia de Almeida Dias

The signal discovered in the Higgs searches at the LHC can be interpreted as the Higgs boson of the Standard Model as well as the light CP-even Higgs boson of the Minimal Supersymmetric Standard Model (MSSM). In this context the measured…

High Energy Physics - Phenomenology · Physics 2014-04-02 T. Hahn , S. Heinemeyer , W. Hollik , H. Rzehak , G. Weiglein

Electroweak symmetry breaking and the origin of mass of fermion and boson are fundamental questions to understand particle physics. The essential piece of this symmetry breaking, the Higgs boson, is the most probable particle to be…

High Energy Physics - Experiment · Physics 2012-02-28 Hajrah Tabassam , Victoria Martin

Precise measurement of Higgs boson couplings is an important task for International Linear Collider (ILC) experiments and will facilitate the understanding of the particle mass generation mechanism. In this study, the measurement accuracies…

High Energy Physics - Experiment · Physics 2013-03-20 H. Ono , A. Miyamoto

Assuming the validity of the Standard Model, or more generally that possible physics beyond it would have only small effects on production cross sections, branching ratios and electroweak radiative corrections, I determine the mass of the…

High Energy Physics - Phenomenology · Physics 2012-09-17 Jens Erler

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…

High Energy Physics - Phenomenology · Physics 2010-04-15 Alan J. Barr , Ben Gripaios , Christopher Gorham Lester

Within the minimal supersymmetric extension of the Standard Model, the mass of the light CP-even Higgs boson is computed to three-loop accuracy, taking into account the next-to-next-to-leading order effects from supersymmetric Quantum…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. V. Harlander , P. Kant , L. Mihaila , M. Steinhauser

We compute the Higgs mass in a model for the electroweak interactions based on a confining theory. This model is related to the standard model by the complementarity principle. A dynamical effect due to the large typical scale of the Higgs…

High Energy Physics - Phenomenology · Physics 2014-11-17 Xavier Calmet , Harald Fritzsch

To know the total width of the recently discovered Higgs boson particle, it is important to measure the invisible decay width of the Higgs boson. However, the signal for this measurement at the LHC, i.e., a charged lepton pair and missing…

High Energy Physics - Phenomenology · Physics 2014-05-28 Jian Wang

A light Higgs boson, with mass of the order of 100 GeV, is still not excluded by the existing experimental data, provided its coupling to gauge bosons is strongly suppressed compared to a SM-like Higgs boson at the same mass. Also other…

High Energy Physics - Phenomenology · Physics 2023-07-31 Aleksander Filip Żarnecki

If the Higgs is produced with a large enough cross section in the {\em exclusive} reaction $p + \bar{p} \to p + H + \bar{p}$ it will give rise to a peak at $M_H$ in the {\em missing mass} ($MM$) spectrum, calculated from the 4-momenta of…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. G. Albrow , A. Rostovtsev

A search for the dimuon decay of the Standard Model Higgs boson is performed using the Monte Carlo simulated events to mimic data corresponding to an integrated luminosity of 5.6 ab$^{-1}$ collected with the Circular Electron-Positron…

High Energy Physics - Experiment · Physics 2022-11-16 Qi Liu , Kunlin Ran , Yanping Huang , Gang Li , Manqi Ruan , Shan Jin , Liang Sun

An updated fit to the precision electroweak data and to the direct measurement of the top quark mass $m_t$ provides significant constraints on $m_t$ and on the Higgs boson mass $M_H$: $m_t/\text{GeV}=172\pm 6$ and…

High Energy Physics - Phenomenology · Physics 2008-11-26 John Ellis , G. L. Fogli , E. Lisi