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Related papers: Higgs Physics at the LHC: Some Theory Aspects

200 papers

We study the sensitivities of future precision Higgs measurements and electroweak observables in probing physics beyond the Standard Model. Using effective field theory--appropriate since precision measurements are indirect probes of new…

High Energy Physics - Phenomenology · Physics 2014-04-04 Brian Henning , Xiaochuan Lu , Hitoshi Murayama

I briefly review the Higgs sector in the Standard Model and in its minimal supersymmetric extension. After summarizing the properties of the Higgs bosons, I will discuss the prospects for discovering these particles at the present colliders…

High Energy Physics - Phenomenology · Physics 2011-04-15 Abdelhak Djouadi

The prospects for discovering neutral Higgs bosons in the minimal supersymmetric model (MSSM) and in the minimal supergravity model at the LHC are investigated. Two special discovery channels are discussed: (i) the decay mode of the MSSM…

High Energy Physics - Phenomenology · Physics 2009-10-31 Chung Kao

Due to the absence of tantalising hints for new physics during the LHC's run 1, the extension of the Higgs sector by dimension six operators will provide the new phenomenological standard for searches of non-resonant extensions of the…

High Energy Physics - Phenomenology · Physics 2016-07-28 Christoph Englert , Roman Kogler , Holger Schulz , Michael Spannowsky

We review possible properties of Higgs bosons in the NMSSM, which allow to discriminate this model from the MSSM: masses of mostly Standard-Model-like Higgs bosons at or above 140 GeV, or enhanced branching fractions into two photons, or…

High Energy Physics - Phenomenology · Physics 2015-05-30 Ulrich Ellwanger

We study the phenomenology of the Standard Model (SM) Higgs sector extended by two singlet scalars. The model predicts two CP-even scalars $h_{1,2}$ which are a mixture of doublet and singlet components as well as a pure singlet scalar…

High Energy Physics - Phenomenology · Physics 2014-02-18 Amine Ahriche , Abdesslam Arhrib , Salah Nasri

We investigate the sensitivity of observables measurable in e^+ e^-, gamma gamma and mu^+ mu^- collisions for distinguishing the properties of the light neutral CP-even Higgs boson in the minimal supersymmetric extension of the Standard…

High Energy Physics - Phenomenology · Physics 2009-11-07 John Ellis , Sven Heinemeyer , Keith A. Olive , Georg Weiglein

The implications of the discovery of the Higgs boson at the LHC with a mass of approximately 125 GeV are summarised in the context of the minimal supersymmetric extension of the Standard Model, the MSSM. Discussed are the implications from…

High Energy Physics - Phenomenology · Physics 2015-06-17 Abdelhak Djouadi

Beyond the Standard Model (SM) extensions usually include extended Higgs sectors. Models with singlet or doublet fields are the simplest ones that are compatible with the $\rho$ parameter constraint. The discovery of new non-SM Higgs bosons…

High Energy Physics - Phenomenology · Physics 2017-10-04 M. Muhlleitner , M. Sampaio , R. Santos , J. Wittbrodt

Two-Higgs-doublet models (2HDM) are simple extensions of the Standard Model (SM) where the scalar sector is enlarged by adding a weak doublet. As a result, the Higgs potential depends in general on several free parameters which have to be…

High Energy Physics - Phenomenology · Physics 2010-12-17 Simon de Visscher , Jean-Marc Gerard , Michel Herquet , Vincent Lemaitre , Fabio Maltoni

We report on recent developments in the public computer code HiggsBounds, which confronts arbitrary Higgs sector predictions with 95% C.L. exclusion limits from Higgs searches at the LEP, Tevatron and LHC experiments. We discuss in detail…

High Energy Physics - Phenomenology · Physics 2013-01-14 Philip Bechtle , Oliver Brein , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein , Karina Williams

We present a general method for calculating the leading contributions to h -> gg and h -> gamma gamma in models where the Higgs weakly mixes with a nearly supersymmetric extra sector. Such mixing terms can play an important role in raising…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jonathan J. Heckman , Piyush Kumar , Brian Wecht

We reexamine the constrained version of the Next-to-Minimal Supersymmetric Standard Model with semi universal parameters at the GUT scale (CNMSSM). We include constraints from collider searches for Higgs and SUSY particles, upper bound on…

High Energy Physics - Phenomenology · Physics 2009-01-16 G. Belanger , C. Hugonie , A. Pukhov

These lectures provide a concise introduction to the so-called "Beyond the Standard Model"' physics, with particular emphasis on the problem of the microscopic origin of the Higgs mass term and of the Electro-Weak symmetry breaking scale in…

High Energy Physics - Phenomenology · Physics 2019-01-07 Andrea Wulzer

Once Supersymmetry is discovered, exploring the phases of supersymmetric parameters will be one of the most important tasks of future colliders. We analyze the possibilities of investigating the phases of the cMSSM via their effects on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Heinemeyer , M. Velasco

We consider the phenomenological consequences of a hidden Higgs sector extending the Standard Model (SM), in which the matter content are uncharged under the SM gauge groups. We consider a simple case where the hidden sector is gauged under…

High Energy Physics - Phenomenology · Physics 2017-08-23 We-Fu Chang , John N. Ng , Jackson M. S. Wu

In these proceedings, we present several new measurements of Standard Model (SM) processes, in the Higgs sector and beyond, that push the precision frontier forward at CMS. Results are presented in the context of a framework parameterizing…

High Energy Physics - Experiment · Physics 2023-06-01 Nicholas Smith

Theoretical implications of the possible observation of a Higgs boson with a mass of about 115 GeV at LEP are discussed. Within the Standard Model a Higgs boson in this mass range agrees well with the indirect constraints from electroweak…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Weiglein

Recent developments in prospects of searching for Higgs particles and testing their properties at the LHC and at TeV e+e- linear colliders are summarized. The discovery limits of supersymmetric particles at the LHC are presented and the…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Kilian , P. M. Zerwas

Extensions of the Standard Model (SM) of Particle Physics can be probed either through precision measurements of SM observables or via direct searches for processes beyond the SM (BSM). This proceeding focuses on precision measurements in…

High Energy Physics - Experiment · Physics 2026-05-12 Felicia Volle