Light stop mass limits from Higgs rate measurements in the MSSM: is MSSM electroweak baryogenesis still alive after all?

Liebler, Stefan; Profumo, Stefano; Stefaniak, Tim

doi:10.1007/jhep04(2016)143

Cited by 27 publications

(28 citation statements)

References 161 publications

(253 reference statements)

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“…16 Note that we assumed universality of the left-and right-handed softbreaking stop mass parameter here. Lower light stop masses even below the top quark mass can be obtained while being consistent with the Higgs rates in the presence of a large mass splitting in the stop sector [152]. A t /M S 3, while the range in μ/M S is larger (roughly between 1.4 and 3).…”

Section: Parameter Spacesupporting

confidence: 75%

The light and heavy Higgs interpretation of the MSSM

et al. 2017

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We perform a parameter scan of the phenomenological Minimal Supersymmetric Standard Model (pMSSM) with eight parameters taking into account the experimental Higgs boson results from Run I of the LHC and further lowenergy observables. We investigate various MSSM interpretations of the Higgs signal at 125 GeV. First, we consider the case where the light CP-even Higgs boson of the MSSM is identified with the discovered Higgs boson. In this case it can impersonate the SM Higgs-like signal either in the decoupling limit, or in the limit of alignment without decoupling. In the latter case, the other states in the Higgs sector can also be light, offering good prospects for upcoming LHC searches and for searches at future colliders. Second, we demonstrate that the heavy CP-even Higgs boson is still a viable candidate to explain the Higgs signal -albeit only in a highly constrained parameter region, that will be probed by LHC searches for the CP-odd Higgs boson and the charged Higgs boson in the near future. As a guidance for such searches we provide new benchmark scenarios that can be employed to maximize the sensitivity of the experimental analysis to this interpretation. a

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Section: Parameter Spacesupporting

confidence: 75%

The light and heavy Higgs interpretation of the MSSM

et al. 2017

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“…Despite potential loopholes in the experimental limits (see e.g. [127]), it seems unfeasible to overcome all current constraints simultaneously and so a strong first-order EWPT in the MSSM can be considered essentially ruled out.…”

Section: Susy-extended Smmentioning

confidence: 99%

Detecting gravitational waves from cosmological phase transitions with LISA: an update

Caprini

Chala

Dorsch

et al. 2020

J. Cosmol. Astropart. Phys.

657

800

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We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in the cosmic fluid after the phase transition completes. We discuss the various sources of gravitational radiation, the underlying parameters describing the phase transition and a variety of viable particle physics models in this context, clarifying common misconceptions that appear in the literature and identifying open questions requiring future study. We also present a web-based tool, PTPlot, that allows users to obtain up-to-date detection prospects for a given set of phase transition parameters at LISA.

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“…Refs. [15,[182][183][184][185][186][187]. This may happen through loop contributions to the Higgs boson couplings to SM particles, as well as, when kinematically possible, through direct decays of the Higgs bosons into superparticles.…”

Section: Scenarios With Light Superparticlesmentioning

confidence: 99%

MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond

et al. 2019

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We propose six new benchmark scenarios for Higgs boson searches in the Minimal Supersymmetric Standard Model. Our calculations follow the recommendations of the LHC Higgs Cross Section Working Group, and benefit from recent developments in the predictions for the Higgs-boson masses and mixing. All of the proposed scenarios are compatible with the most recent results from Run 2 of the LHC. In particular, they feature a scalar with mass and couplings compatible with those of the observed Higgs boson, and a significant portion of their parameter space is allowed by the limits from the searches for SUSY particles and additional Higgs bosons. We define a scenario where all SUSY particles are relatively heavy, and two scenarios with light colorless SUSY particles (charginos, neutralinos and, in one case, staus). In addition, we present two scenarios featuring alignment without decoupling, realized with either the lighter or the heavier scalar being SM-like, and a scenario with CP violation.

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Light stop mass limits from Higgs rate measurements in the MSSM: is MSSM electroweak baryogenesis still alive after all?

Cited by 27 publications

References 161 publications

The light and heavy Higgs interpretation of the MSSM

The light and heavy Higgs interpretation of the MSSM

Detecting gravitational waves from cosmological phase transitions with LISA: an update

MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond

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