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In supersymmetry (SUSY) models with low electroweak naturalness (natSUSY), which have been suggested to be the most likely version of SUSY to emerge from the string landscape, higgsinos are expected at the few hundred GeV scale whilst…

High Energy Physics - Phenomenology · Physics 2022-12-20 Howard Baer , Vernon Barger , Xerxes Tata , Kairui Zhang

We continue our examination of prospects for discovery of heavy Higgs bosons of natural SUSY (natSUSY) models at the high luminosity LHC (HL-LHC), this time focussing on charged Higgs bosons. In natSUSY, higgsinos are expected at the few…

High Energy Physics - Phenomenology · Physics 2023-06-09 Howard Baer , Vernon Barger , Xerxes Tata , Kairui Zhang

Recently, it has been argued that various measures of SUSY naturalness-- electroweak, Higgs mass and EENZ/BG-- when applied consistently concur with one another and make very specific predictions for natural supersymmetric spectra. Highly…

High Energy Physics - Phenomenology · Physics 2014-10-22 Kyu Jung Bae , Howard Baer , Vernon Barger , Dan Mickelson , Michael Savoy

In the realm of natural supersymmetric models, higgsinos are typically the lightest electroweakinos. In gauge-mediated supersymmetry breaking models, the lightest higgsino-dominated particles decay into a $Z$-boson or a Higgs boson ($h$),…

High Energy Physics - Phenomenology · Physics 2024-08-15 Jian-Peng Dai , Song Li , Jin-Min Yang , Yang Zhang , Pengxuan Zhu , Rui Zhu

An interesting feature of the next-to-minimal supersymmetric standard model (NMSSM) is that one or more Higgs bosons may be comparably light (M_{H_i}<M_Z) without being in conflict with current experimental bounds. Due to a large singlet…

High Energy Physics - Phenomenology · Physics 2012-01-26 Oscar Stål , Georg Weiglein

In natural supersymmetric models defined by no worse than a part in thirty electroweak fine-tuning, winos and binos are generically expected to be much heavier than higgsinos. Moreover, the splitting between the higgsinos is expected to be…

High Energy Physics - Phenomenology · Physics 2024-01-29 Howard Baer , Vernon Barger , Xerxes Tata , Kairui Zhang

The naturalness of a Higgs boson with a mass near 125 GeV is explored in a variety of weak-scale supersymmetric models. A Higgs mass of this size strongly points towards a non-minimal implementation of supersymmetry. The Minimal…

High Energy Physics - Phenomenology · Physics 2015-06-03 Lawrence J. Hall , David Pinner , Joshua T. Ruderman

The production mechanisms and decay modes of the heavy neutral and charged Higgs bosons in the Minimal Supersymmetric Standard Model are investigated at future $e^+ e^-$ colliders in the TeV energy regime. We generate supersymmetric…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Djouadi , J. Kalinowski , P. Ohmann , P. M. Zerwas

We investigate the LHC discovery prospects for a heavy Higgs boson decaying into the Standard Model Higgs boson and additional weak bosons. We consider a generic model-independent new physics configuration where this decay proceeds via a…

High Energy Physics - Phenomenology · Physics 2018-04-11 Baradhwaj Coleppa , Benjamin Fuks , P. Poulose , Shibananda Sahoo

In this study, assuming the type-I 2HDM at SM-like scenario, observability of heavy neutral CP-even and CP-odd Higgs bosons $H$ and $A$ at a linear collider operating at $\sqrt{s}=1$ TeV is investigated through the signal process chain $e^-…

High Energy Physics - Phenomenology · Physics 2024-10-04 Majid Hashemi , Gholamhossein Haghighat

One of the early criterion proposed for naturalness was a relatively small Higgs mixing parameter $\mu$ with $\mu/M_Z$ order few. A relatively small $\mu$ may lead to heavier Higgs masses ($H^0, A, H^{\pm}$ in MSSM) which are significantly…

High Energy Physics - Phenomenology · Physics 2018-12-05 Amin Aboubrahim , Pran Nath

Given the increasingly more stringent bounds on Supersymmetry (SUSY) from the LHC searches, we are motivated to explore the situation in which the only accessible SUSY states are the electroweakinos (charginos and neutralinos). In the…

High Energy Physics - Phenomenology · Physics 2013-12-16 T. Han , S. Padhi , S. Su

We examine production and decay of heavy neutral SUSY Higgs bosons pp-> H,\ A -> \tau\bar{\tau} within the hMSSM and compare against a perhaps more plausible natural supersymmetry scenario dubbed m_h^{125}({\rm nat}) which allows for a…

High Energy Physics - Phenomenology · Physics 2022-09-02 Howard Baer , Vernon Barger , Xerxes Tata , Kairui Zhang

The ATLAS and CMS experiments have recently claimed discovery of a Higgs boson-like particle at ~5 sigma confidence and are beginning to test the Standard Model predictions for its production and decay. In a variety of supersymmetric…

High Energy Physics - Phenomenology · Physics 2012-10-29 Kiel Howe , Prashant Saraswat

In this study, we explore the detectability of heavy Higgs bosons in the $pp \to b\bar{b}H/A \to b\bar{b}t\bar{t}$ channel at a 100 TeV hadron collider within the semi-constrained Next-to-Minimal Supersymmetric Standard Model (NMSSM). We…

High Energy Physics - Phenomenology · Physics 2024-07-26 Kun Wang , Pengfu Tian , Jingya Zhu

We discuss the possibilities to observe the decays of heavy SUSY Higgs bosons into supersymmetric particles at the LHC. Such an observation would be of interest either in a discovery search if sparticle modes are the dominant ones, or in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Moortgat , S. Abdullin , D. Denegri

The recent discovery of a new boson at the LHC, which resembles a SM-like Higgs boson with $m_h=125$ GeV, is starting to provide strong guidelines into SUSY model building. For instance, the identification of such a state with the lightest…

High Energy Physics - Phenomenology · Physics 2015-06-12 Ernesto Arganda , J. Lorenzo Diaz-Cruz , Alejandro Szynkman

While LHC has discovered a very Standard Model-like Higgs boson of mass m_h~ 125 GeV, no solid signal for physics beyond the Standard Model has emerged so far at LHC or at WIMP seach experiments. For the case of weak scale supersymmetry…

High Energy Physics - Phenomenology · Physics 2020-12-30 Howard Baer , Vernon Barger , Shadman Salam , Dibyashree Sengupta , Kuver Sinha

The electroweak sector of the Minimal Supersymmetric Standard Model (MSSM) - neutralinos, charginos and sleptons - remains relatively weakly constrained at the LHC due in part to the small production cross sections of these particles. In…

High Energy Physics - Phenomenology · Physics 2019-05-01 Stefania Gori , Zhen Liu , Bibhushan Shakya

Assuming a light Higgs boson is discovered, its nature may remain unknown in case that no supersymmetric particles are found. The detection and study of heavier Higgs particles is then of great interest. For this purpose the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jose I. Illana
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