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The indirect determination of the total width of the detected Higgs boson that is carried out by the experimental collaborations at the LHC relies on the assumption that the coupling modifiers for the on-shell and off-shell couplings are…

High Energy Physics - Phenomenology · Physics 2026-03-06 Panagiotis Stylianou , Georg Weiglein

The unified compositeness of leptons, quarks and Higgs bosons is proposed as a possible scenario for New Physics beyond the Standard Model. The following topics of the scenario are briefly discussed: - Chiral gauge exceptional symmetry E_6…

High Energy Physics - Phenomenology · Physics 2011-04-15 Vasily V. Kabachenko , Yury F. Pirogov

We discuss the impact and potential discovery of physics beyond the Standard Model, coupling to the Higgs sector, at the LHC. Using a model-independent effective Lagrangian approach, pure Higgs and Higgs-gauge operators are analyzed, and…

High Energy Physics - Phenomenology · Physics 2015-05-28 F. Bonnet , M. B. Gavela , T. Ota , W. Winter

The interplay of prospective experimental information from both the Large Hadron Collider (LHC) and the Linear Collider (LC) in the investigation of the MSSM Higgs sector is analyzed in the SPS~1a and SPS 1b benchmark scenarios. Combining…

High Energy Physics - Phenomenology · Physics 2010-02-03 K. Desch , E. Gross , S. Heinemeyer , G. Weiglein , L. Zivkovic

{Since the start of the Large Hadron Collider program, direct searches for Beyond Standard Model (BSM) particles have constrained their mass scale to limits which are now above the energy reach of the current collider. As a result, studies…

High Energy Physics - Experiment · Physics 2021-11-19 A. Hicheur

The study of boosted Higgs bosons at the LHC provides a unique window to probe Higgs boson couplings at high energy scales and search for signs of physics beyond the standard model. In these proceedings, we present recent results on boosted…

High Energy Physics - Experiment · Physics 2025-07-17 Farouk Mokhtar

It is the goal of this dissertation to demonstrate that beyond the standard model, certain theories exist which solve conflicts between observation and theory -- conflicts such as massive neutrinos, dark matter, unstable Higgs vacuum, and…

High Energy Physics - Phenomenology · Physics 2013-08-27 Brian J. Vlcek

The present lectures contain an introduction to low energy supersymmetry, a new symmetry that relates bosons and fermions, in particle physics. The Standard Model of fundamental interactions is briefly reviewed, and the motivation to…

High Energy Physics - Phenomenology · Physics 2009-09-25 D. I. Kazakov

The first LHC results at 7-8 TeV, with the discovery of a candidate Higgs boson and the non observation of new particles or exotic phenomena, have made a big step towards completing the experimental confirmation of the Standard Model (SM)…

High Energy Physics - Phenomenology · Physics 2013-11-05 Guido Altarelli

We systematically study the possibility to probe the physics behind the electroweak symmetry breaking at the LHC assuming new strong interactions being responsible for the effect. The new physics is described by the Higgs-less effective…

High Energy Physics - Phenomenology · Physics 2009-03-12 M. Gintner , I. Melo , B. Trpisova

Motivated by the advent of the Large Hadron Collider the aim of the present work is the non-perturbative determination of the cutoff-dependent upper and lower mass bounds of the Standard Model Higgs boson based on first principle…

High Energy Physics - Lattice · Physics 2010-02-15 P. Gerhold

These four lectures constitute a gentle introduction to what may lie beyond the standard model of quarks and leptons interacting through $SU(3)_c \otimes SU(2)_L \otimes U(1)_Y$ gauge bosons, prepared for an audience of graduate students in…

High Energy Physics - Phenomenology · Physics 2009-09-29 Chris Quigg

The search for evidence of extended electroweak symmetry breaking has entered a new phase with the discovery of a Standard Model (SM)-like Higgs at the LHC. The measurement of Higgs couplings and direct searches for additional scalars…

High Energy Physics - Phenomenology · Physics 2013-05-14 Nathaniel Craig , Jamison Galloway , Scott Thomas

We review the detection capabilities in the forward direction of the various LHC experiments together with the associated physics programme. A selection of measurements accessible with near-beam instrumentation in various sectors (and…

High Energy Physics - Experiment · Physics 2008-11-26 David d'Enterria

Proposals of measuring the off-shell Higgs contributions and first measurements at the LHC have electrified the Higgs phenomenology community for two reasons: Firstly, probing interactions at high invariant masses and momentum transfers is…

High Energy Physics - Phenomenology · Physics 2015-05-27 Christoph Englert , Yotam Soreq , Michael Spannowsky

A summary of the sensitivity of the ATLAS and CMS experiments at the LHC to discover a Standard Model Higgs boson is presented. Some prospects for Minimal Supersymmetric Standard Model Higgs searches at LHC are also included.

High Energy Physics - Experiment · Physics 2019-08-15 J. Fernandez

Supersymmetry is an attractive extension of the standard model of particle physics. It associates to every bosonic degree of freedom a fermionic one and vice versa. Supersymmetry unifies the coupling constants of the electromagnetic, weak…

High Energy Physics - Phenomenology · Physics 2010-07-09 Dirk Zerwas

We investigate a recently proposed UV-complete composite Higgs scenario in the light of the first LHC runs. The model is based on a $SU(4)$ gauge group with global flavour symmetry breaking $SU(5) \to SO(5)$, giving rise to pseudo…

High Energy Physics - Phenomenology · Physics 2017-09-20 Luigi Del Debbio , Christoph Englert , Roman Zwicky

I review the ability of the LHC (large hadron collider), NLC (next linear lepton collider) and FMC (first muon collider) to detect and study Higgs bosons, with emphasis on the Higgs bosons of extended Higgs sectors, especially those of the…

High Energy Physics - Phenomenology · Physics 2016-11-03 J. F. Gunion

Three experiments, among the LHC project, are getting ready to explore the b quark flavour sector. While ATLAS and CMS are general purpose experiments, where the study of B mesons is going to proceed in parallel with the Higgs boson and…

High Energy Physics - Experiment · Physics 2008-09-03 A. Sarti