Improved predictions for intermediate and heavy supersymmetry in the MSSM and beyond

Staub, Florian; Porod, W.

doi:10.1140/epjc/s10052-017-4893-7

Cited by 81 publications

(104 citation statements)

References 85 publications

(105 reference statements)

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“…There are plenty of publicly available computer codes which calculate the Higgs pole mass(es) in the MSSM at higher orders: CPsuperH [24][25][26], FeynHiggs [9,[27][28][29][30][31], FlexibleSUSY [32,33], H3m [1,20], ISASUSY [34], MhEFT [35], SARAH/SPheno [36][37][38][39][40][41][42], SOFTSUSY [43,44], SuSpect [45] and SusyHD [46]. FeynHiggs adopts the on-shell scheme for the renormalization of the particle masses, while all other codes express their results in terms of MS/DR parameters.…”

Section: Introductionmentioning

confidence: 99%

Higgs mass prediction in the MSSM at three-loop level in a pure $$\overline{{\text {DR}}}$$ DR ¯ context

2017

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The impact of the three-loop effects of order α t α 2 s on the mass of the light CP-even Higgs boson in the MSSM is studied in a pure DR context. For this purpose, we implement the results of Kant et al. (JHEP 08:104, 2010) into the C++ module Himalaya and link it to FlexibleSUSY, a Mathematica and C++ package to create spectrum generators for BSM models. The three-loop result is compared to the fixed-order two-loop calculations of the original FlexibleSUSY and of FeynHiggs, as well as to the result based on an EFT approach. Aside from the expected reduction of the renormalization scale dependence with respect to the lower-order results, we find that the three-loop contributions significantly reduce the difference from the EFT prediction in the TeV-region of the SUSY scale M S . Himalaya can be linked also to other two-loop DR codes, thus allowing for the elevation of these codes to the three-loop level.

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Section: Introductionmentioning

confidence: 99%

Higgs mass prediction in the MSSM at three-loop level in a pure $$\overline{{\text {DR}}}$$ DR ¯ context

2017

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“…Note that the MSSM SPheno spectrum generator supported currently is the one immediately available after downloading SPheno, rather than including auto-generated code from SARAH. It includes only the fixed-order Higgs-mass calculation, so the hybrid EFT/fixed-order calculation based on FlexibleEFTHiggs [55] which has been developed very recently [66] is not currently available in SpecBit.…”

Section: Spheno Optionsmentioning

confidence: 99%

“…15 We correct some minor bugs preventing compiler safety checks. 16 We make no attempt within GAMBIT to directly remedy any discrepancies seen between FeynHiggs and other codes [55,66]; we refer the reader to those papers, and the first GAMBIT MSSM results papers [16,17] for further discussion. Table 2).…”

Section: Standard Modelmentioning

confidence: 99%

SpecBit, DecayBit and PrecisionBit: GAMBIT modules for computing mass spectra, particle decay rates and precision observables

et al. 2018

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We present the GAMBIT modules SpecBit, DecayBit and PrecisionBit. Together they provide a new framework for linking publicly available spectrum generators, decay codes and other precision observable calculations in a physically and statistically consistent manner. This allows users to automatically run various combinations of existing codes as if they are a single package. The modular design allows software packages fulfilling the same role to be exchanged freely at runtime, with the results presented in a common format that can easily be passed to downstream dark matter, collider and flavour codes. These modules constitute an essential part of the broader GAMBIT framework, a major new software package for performing global fits. In this paper we present the observable calculations, data, and likelihood functions implemented in the three modules, as well as the conventions and assumptions used in interfacing them with external codes. We also present 3-BIT-HIT, a command-line utility for computing mass spectra, couplings, decays and precision observables in the MSSM, which shows a

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“…In addition, the large SUSY scale (M SUSY ) worsens the uncertainty in the Higgs boson mass calculation [43]. Note that there are more precise calculations available to improve the results for the Higgs boson mass (see for instance [44]). In addition, we have employed the LEP II mass bounds on the lightest chargino and stau.…”

Section: Scanning Procedures and Experimental Constraintsmentioning

confidence: 99%

Charged Higgs boson in MSSM and beyond

et al. 2018

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We conduct a numerical study over the constrained MSSM (CMSSM), next-to-MSSM (NMSSM) and Uð1Þ extended MSSM (UMSSM) to probe the allowed mass ranges of the charged Higgs boson and its dominant decay patterns, which might come into prominence in the near future collider experiments. We present results obtained from a limited scan for CMSSM as a basis and compare its predictions with the extended models. We observe within our data that a wide mass range is allowed as 0.5ð1Þ ≲ m H AE ≲ 17 TeV in UMSSM (NMSSM). We find that the dominant decay channel is mostly H AE → tb such that BRðH AE → tbÞ ∼ 80%. While this mode remains dominant over the whole allowed parameter space of CMSSM, we realize some special domains in the NMSSM and UMSSM, in which BRðH AE → tbÞ ≲ 10%. In this context, the decay patterns of the charged Higgs can play a significant role to distinguish among the SUSY models. In addition to the tb decay mode, we find that the narrow mass scale in CMSSM allows only the decay modes for the charged Higgs boson to τν (∼16%), and their supersymmetric partnersτν (∼13%).On the other hand, it is possible to realize the mode in NMSSM and UMSSM in which the charged Higgs boson decays into a chargino and neutralino pair up to about 25%. This decay mode requires nonuniversal boundary conditions within the MSSM framework to be available, since CMSSM yields BRðH AE →χ 0 1χ AE 1 Þ ≲ 1%. It can also be probed in the near future collider experiments through the missing energy and CP-violation measurements. Moreover, the chargino mass is realized as m˜χAE 1 ≳ 1 TeV in NMSSM and UMSSM, and these solutions will be likely tested soon in collider experiments through the chargino-neutralino production. Focusing on the chargino-neutralino decay patterns, we also present tables which list the possible ranges for the charged Higgs production and decay modes.

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Improved predictions for intermediate and heavy supersymmetry in the MSSM and beyond

Cited by 81 publications

References 85 publications

Higgs mass prediction in the MSSM at three-loop level in a pure $$\overline{{\text {DR}}}$$ DR ¯ context

Higgs mass prediction in the MSSM at three-loop level in a pure $$\overline{{\text {DR}}}$$ DR ¯ context

SpecBit, DecayBit and PrecisionBit: GAMBIT modules for computing mass spectra, particle decay rates and precision observables

Charged Higgs boson in MSSM and beyond

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