HiggsSignals: Confronting arbitrary Higgs sectors with measurements at the Tevatron and the LHC

By Philip Bechtle, Sven Heinemeyer, Oscar Stål, T. Stefaniak, Georg Weiglein. 2013

637 citations recorded by the source corpus.

HiggsSignals is a Fortran90 computer code that allows to test the compatibility of Higgs sector predictions against Higgs rates and masses measured at the LHC or the Tevatron. Arbitrary models with any number of Higgs bosons can be investigated using a model-independent input scheme based on HiggsBounds. The test is based on the calculation of a $$\chi ^2$$χ2 measure from the predictions and the measured Higgs rates and masses, with the ability of fully taking into account systematics and correlations for the signal rate predictions, luminosity and Higgs mass predictions. It features two complementary methods for the test. First, the peak-centered method, in which each observable is defined by a Higgs signal rate measured at a specific hypothetical Higgs mass, corresponding to a tentative Higgs signal. Second, the mass-centered method, where the test is evaluated by comparing the signal rate measurement to the theory prediction at the Higgs mass predicted by the model. The program allows for the simultaneous use of both methods, which is useful in testing models with multiple Higgs bosons. The code automatically combines the signal rates of multiple Higgs bosons if their signals cannot be resolved by the experimental analysis. We compare results obtained with HiggsSignals to official ATLAS and CMS results for various examples of Higgs property determinations and find very good agreement. A few examples of HiggsSignals applications are provided, going beyond the scenarios investigated by the LHC collaborations. For models with more than one Higgs boson we recommend to use HiggsSignals and HiggsBounds in parallel to exploit the full constraining power of Higgs search exclusion limits and the measurements of the signal seen at $$m_H\approx 125.5$$mH≈125.5 GeV.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/fe93137d0c7d89e1cade5060b21c43c4c10ea9c7

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In Nuclear and High Energy Physics

Citations in the corpus

SARAH 4: A tool for (not only SUSY) model builders (2013, methodology): “Also precision observables are calculated and an easy link to HiggsBounds [34, 35] and HiggsSignals [36] exists.”
SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM (2012, positive): “Furthermore the MSSM Higgs results can be checked against experimental data by linking SusHi to HiggsBounds [70–72] and HiggsSignals [73].”
Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “6) into the code HiggsSignals [561, 562], including the corresponding correlation matrices.”
Collider limits on new physics within micrOMEGAs4.3 (2016, positive): “These include Lilith [22] and HiggsSignals [23] that check the compatibility to measurements of the Higgs boson at 125 GeV, HiggsBounds [24,25] that provides modelindependent limits on additional neutral and charged Higgs states, and SModelS [30–32] that checks the LHC limits on the production of ne”
DarkSUSY 6: an advanced tool to compute dark matter properties numerically (2018, methodology): “• HiggsBounds [151] and HiggsSignals [197] are used for LEP and LHC limits and constraints on the observed Higgs boson.”