MSSM Higgs boson searches at the LHC: benchmark scenarios after the discovery of a Higgs-like particle

By M. Carena, Sven Heinemeyer, Oscar Stål, C. Wagner, Georg Weiglein. The European Physical Journal C, 2013

292 citations recorded by the source corpus.

A Higgs-like particle with a mass of about 125.5 GeV has been discovered at the LHC. Within the current experimental uncertainties, this new state is compatible with both the predictions for the Standard Model (SM) Higgs boson and with the Higgs sector in the Minimal Supersymmetric Standard Model (MSSM). We propose new low-energy MSSM benchmark scenarios that, over a wide parameter range, are compatible with the mass and production rates of the observed signal. These scenarios also exhibit interesting phenomenology for the MSSM Higgs sector. We propose a slightly updated version of the well-known \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$m_{h}^{\max}$\end{document} scenario, and a modified scenario (\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$m_{h}^{\mathrm{mod}}$\end{document}), where the light \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathcal{CP}$\end{document}-even Higgs boson can be interpreted as the LHC signal in large parts of the MA–tanβ plane. Furthermore, we define a light stop scenario that leads to a suppression of the lightest \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathcal{CP}$\end{document}-even Higgs gluon fusion rate, and a light stau scenario with an enhanced decay rate of h→γγ at large tanβ. We also suggest a τ-phobic Higgs scenario in which the lightest Higgs can have suppressed couplings to down-type fermions. We propose to supplement the specified value of the μ parameter in some of these scenarios with additional values of both signs. This has a significant impact on the interpretation of searches for the non-SM-like MSSM Higgs bosons. We also discuss the sensitivity of the searches to heavy Higgs decays into light charginos and neutralinos, and to decays of the form H→hh. Finally, in addition to all the other scenarios where the lightest \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathcal{CP}$\end{document}-even Higgs is interpreted as the LHC signal, we propose a low-MH scenario, where instead the heavy\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathcal{CP}$\end{document}-even Higgs boson corresponds to the new state around 125.5 GeV.

Subfields: Artificial Intelligence, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e18f2dadb6017ef0c8a40185338a6105f7ea9055

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Citations in the corpus

Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions (2014, result): “New benchmark scenarios [31] have thus recently been proposed where the mass of one of the scalar Higgs bosons, h or H, is compatible with the mass of the recently discovered Higgs boson of 125 GeV within a range of ±3 GeV.”
Probing the Standard Model with Higgs signal rates from the Tevatron, the LHC and a future ILC (2014, background): “The eective Higgs-gluon coupling can be modied in supersymmetric models by stop contributions, where one can easily nd rate predictions for Higgs production in gluon fusion corresponding to g<1 [157,167,168]. Our t parametrization represents the case where indirect new physics eects may be visibl”
Higgs Physics at the HL-LHC and HE-LHC (2019, unknown): “Figure 171 shows the results [860] for three different benchmark scenarios: the m h and tau-phobic scenarios [863] and the hMSSM [864, 865].”
The hunt for the rest of the Higgs bosons (2015, background): “In fact, traditional benchmark scenarios used to study H/A→ ττ actually have regions of parameter space where H/A→ inv occurs at non-negligible rates [73].”
Dark Matter through the Higgs portal (2019, background): “However, these contributions are much smaller and can be ignored to first approximation [148,482–486].”
Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector (2017, unknown): “In the mmod+ h scenario [19], the top-squark mixing parameter is chosen such that the mass of the lightest CP-even Higgs boson, mh, is close to the measured mass of the Higgs boson that was discovered at the LHC.”
Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb−1 of pp collisions at s=13$$ \sqrt{s}=13 $$ TeV with the ATLAS detector (2018, unknown): “In the mmod+ h scenario [19], the top-squark mixing parameter is chosen such that the mass of the lightest CP-even Higgs boson, mh, is close to the measured mass of the Higgs boson that was discovered at the LHC.”
Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector (2015, background): “and effects from light supersymmetric particles [84], which are not investigated here.”