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Related papers: A Novel Scenario in the Semi-constrained NMSSM

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In this work, we analyse and demonstrate possible strategies to explore extended Higgs sector of the Minimal Supersymmetric Standard Model (MSSM). In particular we concentrate on heavy Higgs decays to electroweakinos. We analyse the Higgs…

High Energy Physics - Phenomenology · Physics 2021-05-06 Amit Adhikary , Biplob Bhattacherjee , Rohini M. Godbole , Najimuddin Khan , Suchita Kulkarni

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…

High Energy Physics - Phenomenology · Physics 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

The natural supersymmetry (SUSY) requires that stop, sbottom, and gluino be around one TeV or lighter. By using the direct SUSY search bounds from both ATLAS and CMS Collaborations, we examine the constraints on the natural SUSY in the Next…

High Energy Physics - Phenomenology · Physics 2014-01-29 Taoli Cheng , Jinmian Li , Tianjun Li , Qi-Shu Yan

The constrained Next-to-Minimal Supersymmetric Standard Model (cNMSSM) with mSugra-like boundary conditions at the GUT scale implies a singlino-like LSP with a mass just a few GeV below a stau NLSP. Hence, most of the squark/gluino decay…

High Energy Physics - Phenomenology · Physics 2011-02-03 Ulrich Ellwanger , Alice Florent , Dirk Zerwas

$U(1)_X$SSM is the extension of the minimal supersymmetric standard model(MSSM) and its local gauge group is $SU(3)_C\times SU(2)_L \times U(1)_Y \times U(1)_X$. To obtain this model, three singlet new Higgs superfields and right-handed…

High Energy Physics - Phenomenology · Physics 2020-03-18 Shu-Min Zhao , Tai-Fu Feng , Ming-Jie Zhang , Jin-Lei Yang , Hai-Bin Zhang , Guo-Zhu Ning

The search for heavy Higgs bosons at the LHC represents an intense experimental program, carried out by the ATLAS and CMS collaborations, which includes the hunt for invisible Higgs decays and dark matter candidates. No significant…

High Energy Physics - Phenomenology · Physics 2018-03-08 Ernesto Arganda , J. Lorenzo Díaz-Cruz , Nicolás Mileo , Roberto A. Morales , Alejandro Szynkman

We discuss the possibilities for the direct detection of neutralino dark matter via elastic scattering in variants of the minimal supersymmetric extension of the Standard Model (MSSM) with non-universal supersymmetry-breaking contributions…

High Energy Physics - Phenomenology · Physics 2010-04-28 John Ellis , Keith A. Olive , Pearl Sandick

Supersymmetry is a prime candidate for physics beyond the Standard Model because low-energy supersymmetry stabilizes the Higgs mass avoiding fine-tuning and leads to natural electroweak symmetry breaking. However, searches at the Large…

High Energy Physics - Phenomenology · Physics 2015-11-16 Kohsaku Tobioka

We examine scenarios in the Next-to-Minimal Supersymmetric Standard Model (NMSSM), where pair-produced squarks and gluinos decay via two cascades, each ending in a stable neutralino as Lightest Supersymmetric Particle (LSP) and a Standard…

High Energy Physics - Phenomenology · Physics 2018-11-14 A. Titterton , U. Ellwanger , H. U. Flaecher , S. Moretti , C. H. Shepherd-Themistocleous

We analyze the Higgs intense--coupling regime, in which all Higgs particles of the Minimal Supersymmetric Standard Model are light with masses of the same order and the value of $\tb$ the ratio of vacuum expectation values of the two Higgs…

High Energy Physics - Phenomenology · Physics 2010-02-03 Abdelhak Djouadi , Yann Mambrini

We study the features of the additional Higgs bosons in the Next-to-Minimal Supersymmetric Standard Model where the lightest beyond Standard Model Higgs boson does not dominantly couple to up-type quarks. The new state is dominantly…

High Energy Physics - Phenomenology · Physics 2019-06-04 Debottam Das

We discuss the lower bound to the lightest Higgs boson H_1 in the minimal supersymmetric extension of the standard model (MSSM) with explicit CP violation, and the phenomenology of the lightest relic neutralino in the same scenario. In…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jae Sik Lee , Stefano Scopel

The simplest supersymmetric model that solves the mu problem and in which the GUT-scale parameters need not be finely tuned in order to predict the correct value of the Z boson mass at low scales is the Next-to-Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-02-18 J. R. Forshaw , J. F. Gunion , L. Hodgkinson , A. Papaefstathiou , A. D. Pilkington

The $\mu\nu$SSM is a simple supersymmetric extension of the Standard Model (SM) capable of describing neutrino physics in agreement with experiments. We perform the complete one-loop renormalization of the neutral scalar sector of the…

High Energy Physics - Phenomenology · Physics 2020-01-31 Thomas Biekötter , Sven Heinemeyer , Carlos Muñoz

We propose to generate non-universal gaugino masses in SU(5) GUT with the generalized Planck-scale mediation SUSY breaking mechanism, in which the non-universality arises from proper wavefunction normalization with lowest component VEVs of…

High Energy Physics - Phenomenology · Physics 2018-12-26 Fei Wang , Kun Wang , Jin Min Yang , Jingya Zhu

The semi-constrained NMSSM (scNMSSM), or NMSSM with non-universal Higgs masses, can naturally predict a light dark matter under current constraints including Higgs data, sparticle-mass bounds, dark matter searches, and muon g-2, etc. In…

High Energy Physics - Phenomenology · Physics 2020-06-12 Kun Wang , Jingya Zhu

In the Next-to-Minimal Supersymemtric Standard Model (NMSSM), one of the neutral Higgs scalars (CP-even or CP-odd) may be lighter than half of the SM-like Higgs boson. In this case, the SM-like Higgs boson h can decay into such a light…

High Energy Physics - Phenomenology · Physics 2013-11-27 Junjie Cao , Fangfang Ding , Chengcheng Han , Jin Min Yang , Jingya Zhu

We thoroughly investigate the current status of supersymmetry in light of the latest searches at the LHC, using General Gauge Mediation (GGM) as a well-motivated signature generator that leads to many different simplified models. We…

High Energy Physics - Phenomenology · Physics 2015-06-03 Yevgeny Kats , Patrick Meade , Matthew Reece , David Shih

The recent LHC discovery of a Higgs-like resonance at 126 GeV suggests that the minimal supersymmetric standard model must be modified in order to preserve naturalness. A simple extension is to include a singlet superfield and consider the…

High Energy Physics - Phenomenology · Physics 2015-06-12 Tony Gherghetta , Benedict von Harling , Anibal D. Medina , Michael A. Schmidt

We present a Bayesian analysis of the NUGHM, a supersymmetric scenario with non-universal gaugino masses and Higgs masses, including all the relevant experimental observables and dark matter constraints. The main merit of the NUGHM is that…

High Energy Physics - Phenomenology · Physics 2015-06-18 Maria Eugenia Cabrera , Alberto Casas , Roberto Ruiz de Austri , Gianfranco Bertone