Exploring the 2HDM with Global Fits in GAMBIT

Rajec, Filip; Su, Wei; Williams, Anthony G.

doi:10.1051/epjconf/202024506022

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…GAMBIT is a powerful software framework capable of performing statistical inference studies using constraints from collider [96], dark matter [97], flavour [98] and neutrino [99] physics, as well as cosmology [100]. It has already been used for detailed statistical analyses of a variety of beyond the Standard Model (BSM) models, including supersymmetry [101][102][103], scalar singlet DM [104][105][106][107][108], axion and axion-like particles [109,110], and neutrinos [99,111], as well as an initial analysis of the 2HDM [112]. Our work enhances the FlavBit [98] and Pre-cisionBit [113] modules of GAMBIT to support the GTHDM.…”

Section: Jhep01(2022)037 1 Introductionmentioning

confidence: 99%

Likelihood analysis of the flavour anomalies and g – 2 in the general two Higgs doublet model

Athron

Balázs

Gonzalo

et al. 2022

J. High Energ. Phys.

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We present a likelihood analysis of the general two Higgs doublet model, using the most important currently measured flavour observables, in view of the anomalies in charged current tree-level and neutral current one-loop rare decays of B mesons in b → cl$$ \overline{\nu} $$ ν ¯ and b → sμ+μ− transitions, respectively. We corroborate that the model explains the latter and it is able to simultaneously fit the experimental values of the R(D) charged current ratio at 1σ, but it can not accommodate the D* charmed meson observables R(D*) and FL(D*). We find that the fitted values for the angular observables in b → sμ+μ− transitions exhibit better agreement with the general two Higgs double model in comparison to the SM. We also make predictions for future collider observables BR(t → ch), BR(h → bs), BR(h → τμ), BR(Bs → τ+τ−), BR(B+ → K+τ+τ−) and the flavour violating decays of the τ lepton, BR(τ → 3μ) and BR(τ → μγ). The model predicts values of BR(t → ch), BR(Bs → τ+τ−) and BR(B+ → K+τ+τ−) that are out of reach of future experiments, but its predictions for BR(h → bs) and BR(h → τμ) are within the future sensitivity of the HL-LHC or the ILC. We also find that the predictions for the τ → 3μ and τ → μγ decays are well within the projected limits of the Belle II experiment. Finally, using the latest measurement of the Fermilab Muon g − 2 Collaboration, we performed a simultaneous fit to ∆aμ constrained by the charged anomalies, finding solutions at the 1σ level. Once the neutral anomalies are included, however, a simultaneous explanation is unfeasible.

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Section: Jhep01(2022)037 1 Introductionmentioning

confidence: 99%

Likelihood analysis of the flavour anomalies and g – 2 in the general two Higgs doublet model

Athron

Balázs

Gonzalo

et al. 2022

J. High Energ. Phys.

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Global fits in the Aligned Two-Higgs-Doublet model

Eberhardt

Martínez

Pich

2021

J. High Energ. Phys.

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We present the results of a global fit to the Aligned Two-Higgs Doublet Model, assuming that there are no new sources of CP violation beyond the quark mixing matrix. We use the most constraining flavour observables, electroweak precision measurements and the available data on Higgs signal strengths and collider searches for heavy scalars, together with the theoretical requirements of perturbativity and positivity of the scalar potential. The combination of all these constraints restricts the values of the scalar masses, the couplings of the scalar potential and the flavour-alignment parameters. The numerical fits have been performed using the open-source HEPfit package.

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