The light and heavy Higgs interpretation of the MSSM

Bechtle, P.; Haber, Howard E.; Heinemeyer, S.; Stål, Oscar; Stefaniak, Tim; Weiglein, G.; Zeune, Lisa

doi:10.1140/epjc/s10052-016-4584-9

Cited by 83 publications

(112 citation statements)

References 215 publications

(366 reference statements)

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“…Given the current precision of the Higgs data, we concluded in Ref. [28] that this region of approximate cancellation, while accidental in nature, does not require an extreme fine-tuning of the MSSM parameters. Indeed, such regions must appear in any comprehensive scan of the MSSM parameter space.…”

Section: Introductionmentioning

confidence: 88%

“…In Ref. [28], a parameter scan of the phenomenological MSSM (pMSSM) with eight parameters was performed, taking into account the experimental Higgs boson results from Run I of the LHC and further low-energy observables. One of the central questions considered in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…One of the central questions considered in Ref. [28] was whether parameter regimes with approximate Higgs alignment without decoupling are still allowed in light of the current LHC data. Two separate cases were considered in which either the lighter or the heavier of the two CP-even neutral Higgs bosons of the MSSM is identified with the observed Higgs boson of mass 125 GeV.…”

Section: Introductionmentioning

confidence: 99%

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The impact of two-loop effects on the scenario of MSSM Higgs alignment without decoupling

2017

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In multi-Higgs models, the properties of one neutral scalar state approximate those of the Standard Model (SM) Higgs boson in a limit where the corresponding scalar field is roughly aligned in field space with the scalar doublet vacuum expectation value. In a scenario of alignment without decoupling, a SM-like Higgs boson can be accompanied by additional scalar states whose masses are of a similar order of magnitude. In the Minimal Supersymmetric Standard Model (MSSM), alignment without decoupling can be achieved due to an accidental cancellation of tree-level and radiative looplevel effects. In this paper we assess the impact of the leading two-loop O(α s h 2 t ) corrections on the Higgs alignment condition in the MSSM. These corrections are sizable and important in the relevant regions of parameter space and furthermore give rise to solutions of the alignment condition that are not present in the approximate one-loop description. We provide a comprehensive numerical comparison of the alignment condition obtained in the approximate one-loop and two-loop approximations, and discuss its implications for phenomenologically viable regions of the MSSM parameter space.

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Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The impact of two-loop effects on the scenario of MSSM Higgs alignment without decoupling

2017

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“…[124,125] and references therein). The experimental average for the (SM) Higgs boson mass is taken to be [126] …”

Section: The Light Higgs Boson Massmentioning

confidence: 99%

Reduction of the parameters in MSSM

Heinemeyer

Mondragón

Tracas

et al. 2018

J. High Energ. Phys.

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In the present work we search for renormalization group invariant relations among the various massless and massive parameters of the Minimal Supersymmetric Standard Model. We find that indeed several of the previously free parameters of the model can be reduced in favor of few, the unique gauge coupling and the gaugino mass at the unification scale among them. Taking into account the various experimental constraints, including the B-physics ones, we predict the Higgs and the supersymmetric spectrum. We find that the lightest Higgs mass is in comfortable agreement with the measured value and its experimental and theoretical uncertainties, while the electroweak supersymmetric spectrum starts at 1.3 TeV and the colored at ∼4 TeV. Thus the reduced MSSM is in natural agreement with all LHC measurements and searches. The supersymmetric and heavy Higgs particles will likely escape the detection at the LHC, as well as at ILC and CLIC. However, the FCC-hh will be able to fully test the predicted parameter space.

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“…The discovery of a Higgs-like particle at ATLAS and CMS in July 2012 [1,2] can be interpreted as the discovery of the light C P-even Higgs boson of the MSSM Higgs spectrum [111][112][113]. The experimental average for the (SM) Higgs boson mass is [114] M exp H = 125.1 ± 0.3 GeV (6.6) and, adding a 3 (2) GeV theory uncertainty [115][116][117] for the Higgs mass calculation in the MSSM, we have an allowing range:…”

Section: Phenomenological Constraintsmentioning

confidence: 99%

The Higgs boson discovery: recent implications for the Finite Unified Theories and SUSY breaking scale

Heinemeyer

Mondragón

Patellis

et al. 2018

Proceedings of Corfu Summer Institute 2017 "Schools and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2017)

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N = 1 supersymmetric GUTs that can be made finite to all orders are called Finite Unified Theories (FUTs). These theories are based on the principle of the reduction of couplings, which consists of searching for renormalization group invariant (RGI) expressions among parameters holding to all orders. FUTs predicted the top quark mass one and half years before its experimental discovery, while four and a half years before the Higgs boson discovery, a particular FUT predicted the light Higgs boson mass in the range ∼121-126 GeV, in striking agreement with the LHC discovery. We review the basic properties of supersymmetric finite theories resulting from reduction of couplings in both their dimensionless and dimensionful sectors. Then, we analyse the SU(5)-based FUT, which is favoured from a phenomenological point of view. This particular FUT leads to a version of the MSSM that is constrained by the finiteness conditions at the unification scale and predicts a relatively heavy spectrum with coloured supersymmetric particles above 2.7 TeV, consistent with the non-observation of those particles at the LHC. The electroweak supersymmetric spectrum starts below 1 TeV, while parts of the allowed spectrum could be accessible at CLIC. The FCC-hh is expected to be able to fully test the predicted spectrum.

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The light and heavy Higgs interpretation of the MSSM

Cited by 83 publications

References 215 publications

The impact of two-loop effects on the scenario of MSSM Higgs alignment without decoupling

The impact of two-loop effects on the scenario of MSSM Higgs alignment without decoupling

Reduction of the parameters in MSSM

The Higgs boson discovery: recent implications for the Finite Unified Theories and SUSY breaking scale

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