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We investigate signatures induced by a very light pseudoscalar Higgs in neutralino decays in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and determine their observability at the LHC. We concentrate on scenarios which feature…

高能物理 - 唯象学 · 物理学 2014-02-17 David G. Cerdeno , Pradipta Ghosh , Chan Beom Park , Miguel Peiro

We propose a new set of supersymmetric benchmark scenarios, taking into account the constraints from LEP, b to s gamma, g_mu - 2 and cosmology. We work in the context of the constrained MSSM (CMSSM) with universal soft supersymetry-breaking…

高能物理 - 唯象学 · 物理学 2009-09-11 M. Battaglia , A. De Roeck , J. Ellis , F. Gianotti , K. T. Matchev , K. A. Olive , L. Pape , G. Wilson

In the next-to minimal supersymmetric standard model (NMSSM) one additional singlet-like Higgs boson with small couplings to standard model (SM) particles is introduced. Although the mass can be well below the discovered 125 GeV Higgs boson…

高能物理 - 唯象学 · 物理学 2018-05-28 C. Beskidt , W. de Boer , D. I. Kazakov

This is the written version of a talk given by S.K. at the $10^{th}$ International Conference on High Energy and Astroparticle, Constantine, Algeria. We briefly review the Standard Model (SM) and the major evidences and main direction of…

高能物理 - 唯象学 · 物理学 2020-05-19 Dris Boubaa , Gaber Faisel , Shaaban Khalil

We discuss some of the signatures associated with extensions of the Standard Model related to the neutrino and electroweak symmetry breaking sectors, with and without supersymmetry. The topics include a basic discussion of the theory of…

高能物理 - 唯象学 · 物理学 2015-06-25 J. W. F. Valle

After the discovery of the 125 GeV Higgs boson, the Next-to-Minimal Supersymmetric Standard Model (NMSSM) has become more interesting as a model for new physics since new tree-level contributions to the Higgs mass makes it easier to…

高能物理 - 唯象学 · 物理学 2015-10-12 N. -E. Bomark , S. Moretti , S. Munir , L. Roszkowski

We investigate the predictions on the mass spectrum and Higgs boson decays in the supersymmetric standard model extended by U(1)_B-L symmetry (BLSSM). The model requires two singlet Higgs fields, which are responsible for the radiative…

高能物理 - 唯象学 · 物理学 2016-03-23 Cem Salih Un , Ozer Ozdal

The hMSSM is a special parameterization of the minimal supersymmetric extension of the Standard Model (MSSM) in which the mass of the lightest Higgs boson is automatically set to the LHC measured value, $M_h\!\!=\!\! 125$\,GeV, by adjusting…

高能物理 - 唯象学 · 物理学 2023-05-31 Giorgio Arcadi , Abdelhak Djouadi , Hong-Jian He , Jean-Loic Kneur , Rui-Qing Xiao

We explore `benchmark surfaces' suitable for studying the phenomenology of Higgs bosons in the minimal supersymmetric extension of the Standard Model (MSSM), which are chosen so that the supersymmetric relic density is generally compatible…

高能物理 - 唯象学 · 物理学 2009-09-15 J. Ellis , T. Hahn , S. Heinemeyer , K. A. Olive , G. Weiglein

Supersymmetry is one of the most plausible extensions of the Standard Model, since it is well motivated by the hierarchy problem, supported by measurements of the gauge coupling strengths, consistent with the suggestion from precision…

高能物理 - 唯象学 · 物理学 2007-05-23 John Ellis

The new minimal supersymmetric standard model (nMSSM), a variant of the general next to minimal supersymmetric standard model (NMSSM) without $Z_3$ symmetry, features a naturally light singlino with a mass below 75 GeV. In light of the new…

高能物理 - 唯象学 · 物理学 2016-02-17 D. Barducci , G. Bélanger , C. Hugonie , A. Pukhov

We construct the New Minimal Standard Model that incorporates the new discoveries of physics beyond the Minimal Standard Model (MSM): Dark Energy, non-baryonic Dark Matter, neutrino masses, as well as baryon asymmetry and cosmic inflation,…

高能物理 - 唯象学 · 物理学 2009-09-29 Hooman Davoudiasl , Ryuichiro Kitano , Tianjun Li , Hitoshi Murayama

This is a brief overview on the low energy supersymmetry in light of current experiments including the LHC searches, the dark matter (DM) detections, the muon g-2 and the CDF II measurement of the W-boson mass. We focus on the minimal…

高能物理 - 唯象学 · 物理学 2022-11-15 Jin Min Yang , Pengxuan Zhu , Rui Zhu

A multitude of searches have already been performed by the ATLAS and CMS collaborations at the LHC to probe the heavy Higgses of the Minimal Supersymmetric Standard Model (MSSM) through their decay to the Standard Model particles. In this…

高能物理 - 唯象学 · 物理学 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

The prospects for Higgs boson discovery and study at present and future colliders are reviewed, with emphasis on the Minimal Supersymmetric Standard Model (MSSM) states. The expected experimental coverages with different production and…

高能物理 - 唯象学 · 物理学 2009-09-15 V. Barger

We present several benchmark points in the phenomenological Minimal Supersymmetric Standard Model (pMSSM). We select these models as experimentally well-motivated examples of the MSSM which predict the observed Higgs mass and dark matter…

高能物理 - 唯象学 · 物理学 2013-05-14 Matthew W. Cahill-Rowley , JoAnne L. Hewett , Ahmed Ismail , Michael E. Peskin , Thomas G. Rizzo

The HyperCP collaboration observed three events for the decay Sigma to p mu+ mu-. They suggested that new physics may be required to understand the implied decay rate and the observed dimuon invariant mass distribution. Motivated by this…

高能物理 - 唯象学 · 物理学 2008-05-22 G. Valencia

The study of the Higgs boson properties offers compelling perspectives for testing the effects of physics beyond the Standard Model and has deep implications for the LHC program and future colliders. Accurate determinations of the Higgs…

高能物理 - 唯象学 · 物理学 2022-09-08 A. Arbey , M. Battaglia , A. Djouadi , F. Mahmoudi , M. Muhlleitner , M. Spira

We consider extensions of the Minimal Supersymmetric Standard Model (MSSM) where the extra degrees of freedom interact weakly with the Higgs sector. These models allow to relax the tension between the lower bound on the lightest CP even…

高能物理 - 唯象学 · 物理学 2010-11-19 Marcela Carena , Eduardo Pontón , José Zurita

Motivated by the recent results in the standard model (SM) Higgs boson search at the Large Hadron Collider (LHC) we investigate the SM-like CP-even Higgs boson of the U(1)'-extended minimal supersymmetric standard model (UMSSM) and its…

高能物理 - 唯象学 · 物理学 2015-06-04 Chun-Fu Chang , Kingman Cheung , Yi-Chuen Lin , Tzu-Chiang Yuan