With the discovery of a Higgs boson with a mass of 125 gigaelectronvolts (GeV) at the Large Hadron Collider (LHC) at CERN in 2012, the Standard Model (SM) is complete, and despite intensive searches, no new fundamental particle has been observed since then. In fact, a discovery can be challenging without a predictive new physics model because different channels and observables cannot be combined directly and unambiguously. Furthermore, without supporting indirect hints, the signal space to be searched is huge, resulting in diluted significances owing to the look-elsewhere effect. Several LHC processes with multiple leptons in the final state point towards the existence of a new Higgs boson with a mass between 140 GeV to 160 GeV decaying mostly to $\textit{W}$ bosons. While the former strongly reduces the look-elsewhere effect, the latter indicates that it could be a Higgs triplet with zero hypercharge. Within this simple and predictive extension of the SM, we simulate and combine different channels of di-photon production in association with leptons, missing energy, jets, $\textit{etc}$... Using the full run-2 results by ATLAS, including those presented recently at the Moriond conference, an increased significance of 4 standard deviations is obtained for a $\approx$ 152 GeV Higgs. Due to the previously predicted mass range, the look-elsewhere effect is negligible, and this constitutes the highest statistical evidence for a new narrow resonance obtained at the LHC. Furthermore, the model predicts a heavier-than-expected $\textit{W}$ boson, as indicated by the global electroweak fit. If further substantiated, the discovery of a new Higgs would overthrow the SM, provide a compelling case for the construction of future particle colliders, and pave the way to a novel understanding of the known shortcomings of the SM. In particular, the triplet Higgs field can lead to a strong first-order phase transition and could thus be related to the matter anti-matter asymmetry in our Universe.

Switzerland

Andreas Crivellin

China

Saiyad Ashanujjaman

Sumit Banik

Guglielmo Coloretti

India

Siddharth P. Maharathy

South Africa

Bruce Mellado

Growing evidence for a Higgs triplet * The work of Andreas Crivellin is supported by a Professorship Grant from the Swiss National Science Foundation (PP00P21_76884). The work of Saiyad Ashanujjaman is partially supported by the National Natural Science Foundation of China (11835013). Siddharth P. Maharathy acknowledges using the SAMKHYA: High-Performance Computing Facility provided by the Institute of Physics, Bhubaneswar

<p>We examine the correlations between new scalar boson decays to photons and electric dipole moments (EDMs) in the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>C</mi><mi>P</mi></mrow></math>-violating flavor-aligned two-Higgs-doublet model (2HDM). It is convenient to work in the Higgs basis <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mo stretchy="false">{</mo><msub><mi mathvariant="script">H</mi><mn>1</mn></msub><mo>,</mo><msub><mi mathvariant="script">H</mi><mn>2</mn></msub><mo stretchy="false">}</mo></math> where only the first Higgs doublet field <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi mathvariant="script">H</mi><mn>1</mn></msub></math> acquires a vacuum expectation value. In light of the LHC Higgs data, which agree well with Standard Model (SM) predictions, it follows that the parameters of the 2HDM are consistent with the Higgs alignment limit. In this parameter regime, the observed SM-like Higgs boson resides almost entirely in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi mathvariant="script">H</mi><mn>1</mn></msub></math>, and the other two physical neutral scalars, which reside almost entirely in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi mathvariant="script">H</mi><mn>2</mn></msub></math>, are approximate eigenstates of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> (denoted by the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math>-even <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>H</mi></math> and the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math>-odd <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi></math>). In the Higgs basis, the scalar potential term <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mover accent="true"><mi>Z</mi><mo stretchy="false">¯</mo></mover><mn>7</mn></msub><msubsup><mi mathvariant="script">H</mi><mn>1</mn><mi>†</mi></msubsup><msub><mi mathvariant="script">H</mi><mn>2</mn></msub><msubsup><mi mathvariant="script">H</mi><mn>2</mn><mi>†</mi></msubsup><msub><mi mathvariant="script">H</mi><mn>2</mn></msub><mo>+</mo><mi mathvariant="normal">H</mi><mo>.</mo><mi mathvariant="normal">c</mi><mo>.</mo></math> governs the charged-Higgs loop contributions to the decay of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>H</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi></math> to photons. If <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Re</mi><msub><mover accent="true"><mi>Z</mi><mo stretchy="false">¯</mo></mover><mn>7</mn></msub><mi>Im</mi><msub><mover accent="true"><mi>Z</mi><mo stretchy="false">¯</mo></mover><mn>7</mn></msub><mo>≠</mo><mn>0</mn></math>, then <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math>-violating effects are present and allow for an <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msup><mi>H</mi><mo>+</mo></msup><msup><mi>H</mi><mo>−</mo></msup><mi>A</mi></math> coupling, which can yield a sizable branching ratio for <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi><mo stretchy="false">→</mo><mi>γ</mi><mi>γ</mi></math>. These <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math>-violating effects also generate nonzero EDMs for the electron, the neutron and the proton. We examine these correlations for the cases of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>m</mi><mi>A</mi></msub><mo>=</mo><mn>95</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>m</mi><mi>A</mi></msub><mo>=</mo><mn>152</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> where interesting excesses in the diphoton spectrum have been observed at the LHC. These excesses can be explained via the decay of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi></math> while being consistent with the experimental bound for the electron EDM in regions of parameter space that can be tested with future neutron and proton EDM measurements. This allows for the interesting possibility where the 95 GeV diphoton excess can be identified with <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi></math>, while <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>m</mi><mi>H</mi></msub><mo>≃</mo><mn>98</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> can account for the best fit to the LEP excess in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>−</mo></msup><mo stretchy="false">→</mo><mi>Z</mi><mi>H</mi></math> with <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>H</mi><mo stretchy="false">→</mo><mi>b</mi><mover accent="true"><mi>b</mi><mo stretchy="false">¯</mo></mover></math>.</p>

United States

Howard E. Haber

Correlating <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi><mo stretchy="false">→</mo><mi>γ</mi><mi>γ</mi></math> with electric dipole moments in the two Higgs doublet model in light of the diphoton excesses at 95 GeV and 152 GeV

In this article, we examine the Standard Model extended by a $\textit{Y}$ = 0 real Higgs triplet, the ∆SM. It contains a $\textit{CP}$-even neutral Higgs (∆ ) and two charged Higgs bosons (∆ ), which are quasi-degenerate in mass. We first study the theoretical constraints from vacuum stability and perturbative unitarity and then calculate the Higgs decays, including the loop-induced modes such as di-photons ($\textit{γγ}$) and $\textit{Zγ}$. In the limit of a small mixing between the SM Higgs and ∆ , the latter decays dominantly to $\textit{WW}$ and can have a sizable branching ratio to di-photon. The model predicts a positive definite shift in the $\textit{W}$ mass, which is compatible with the current global electroweak fit. At the Large Hadron Collider, it leads to a ($\textit{i}$) stau-like signature from $\textit{pp}$ → ∆ ∆ → $$ {\tau}^{+}{\tau}^{-}\nu \overline{\nu} $$ , ($\textit{ii}$) multi-lepton final states from $\textit{pp}$ → $\textit{γ}$ → ∆ ∆ → $\textit{W}$ $\textit{W}$ $\textit{ZZ}$ and $\textit{pp}$ → $\textit{W}$ → ∆ ∆ → $\textit{W}$ $\textit{ZW}$ $\textit{W}$ as well as ($\textit{iii}$) associated di-photon production from $\textit{pp}$ → $\textit{W}$ → ∆ (∆ → $\textit{γγ}$). Concerning ($\textit{i}$), the reinterpretation of the recent supersymmetric tau partner search by ATLAS and CMS excludes $$ {m}_{\Delta ^{\pm }} $$ $\textit{<}$ 110 GeV at 95% CL. From ($\textit{ii}$), some of the signal regions of multi-lepton searches lead to bounds close to the predicted cross-section, but electroweak scale masses are still allowed. For ($\textit{iii}$), the recast of the associated di-photon searches by ATLAS and a combined log-likelihood fit of signal and background to data find that out of the 25 signal regions, 10 provide relevant limits on Br(∆ → $\textit{γγ}$) at the per cent level. Interestingly, 6 signal regions show weaker than expected limits at around 152 GeV, leading to a preference for a non-zero di-photon branching ratio of about (0.7$\textit{±}$0.2)%.

Germany

Siddharth Maharathy

Anatomy of the real Higgs triplet model

The multi-lepton anomalies suggest the existence of a new scalar with a mass between 145 GeV and 155 GeV, which is compatible with indications of the associated production of a narrow resonance with a mass of ≈151 GeV. These anomalies require a sizable branching fraction of the new scalar to <italic>WW</italic>. However, because no <italic>ZZ</italic> signal at this mass has been observed, this implies that the new boson could be the neutral component of an <math altimg='si1.svg'><mi>S</mi><mi>U</mi><msub><mrow><mo stretchy='false'>(</mo><mn>2</mn><mo stretchy='false'>)</mo></mrow><mrow><mi>L</mi></mrow></msub></math> triplet with zero hypercharge. This field leads to a positive definite shift in the <italic>W</italic> mass and is produced via the Drell-Yan process <math altimg='si2.svg'><mi>p</mi><mi>p</mi><mo stretchy='false'>&#8594;</mo><msup><mrow><mi>W</mi></mrow><mrow><mo>&#8270;</mo></mrow></msup><mo stretchy='false'>&#8594;</mo><msup><mrow><mi mathvariant='normal'>&#916;</mi></mrow><mrow><mn>0</mn></mrow></msup><msup><mrow><mi mathvariant='normal'>&#916;</mi></mrow><mrow><mo>&#177;</mo></mrow></msup></math>. We use the side-bands of the ATLAS analysis <cross-ref refid='br0010' id='crf0170'>[1]</cross-ref> of the associated production of the Standard Model Higgs in the di-photon channel to search for this production mode of the triplet. Since the dominant decays of <math altimg='si10.svg'><msup><mrow><mi mathvariant='normal'>&#916;</mi></mrow><mrow><mo>&#177;</mo></mrow></msup></math> depend only on its mass, the effect in the 22 signal categories considered by ATLAS is completely correlated. Combining all channels in a likelihood ratio test, we find that a non-zero Br <math altimg='si4.svg'><mo stretchy='false'>[</mo><msup><mrow><mi mathvariant='normal'>&#916;</mi></mrow><mrow><mn>0</mn></mrow></msup><mo stretchy='false'>&#8594;</mo><mi>&#947;</mi><mi>&#947;</mi><mo stretchy='false'>]</mo></math>, with a best-fit value of 0.66%, is preferred by &#8776;3 <italic>&#963;</italic> for a mass of &#8776;151.5 GeV. While this mass is consistent with the multi-lepton anomalies, there is also an excess at &#8776;127 GeV with a significance of 3.6 <italic>&#963;</italic>. However, the latter is inconsistent with the mass predicted by the multi-lepton anomalies and is in close proximity to the SM Higgs mass, suggesting the possibility of enhanced associated production of the SM Higgs.

Explaining the <italic>&#947;&#947;</italic>&#8239;+&#8239; <italic>X</italic> excesses at &#8776;151.5 GeV via the Drell-Yan production of a Higgs triplet

Statistically significant tensions between the Standard Model (SM) predictions and the measured lepton distributions in differential top cross-sections emerged in LHC Run 1 data and became even more pronounced in Run 2 analyses. Due to the level of sophistication of the SM predictions and the performance of the ATLAS and CMS detectors, this is very remarkable. Therefore, one should seriously consider the possibility that these measurements are contaminated by beyond-the-SM contributions. In this article, we use the differential lepton distributions from the latest ATLAS $$ t\overline{t} $$ analysis to study a new physics benchmark model motivated by existing indications for new Higgses: a new scalar is produced via gluon fusion and decays to (95 GeV) and (152 GeV), which subsequently decay to $$ b\overline{b} $$ and , respectively. In this setup, the total 𝜒 is reduced, compared to the SM, resulting in ∆ = 34 to ∆ = 158, corresponding to a significance of 5.8 to 13 , depending on the SM simulation used. Notably, allowing to vary, the combination of the distributions points towards ≈ 150 GeV, which is consistent with the existing and signals, rendering a mismodelling of the SM unlikely. Averaging the results of the different SM predictions, ( → → ) × Br( → ) × Br( → ) ≈ 9pb is preferred. Assuming that is SM-like, the 95 GeV excess can be explained if decays dominantly to bosons. That latter suggests that is the neutral component of the SU(2) triplet with hypercharge 0.

Uncovering new Higgses in the LHC analyses of differential

We perform a global statistical analysis of the two-Higgs-doublet model with generic sources of flavour violation using GAMBIT. This is particularly interesting in light of deviations from the Standard Model predictions observed in   <math> <mi>b</mi> <mo>→</mo> <mi>cτ</mi> <mover> <mi>ν</mi> <mo>¯</mo> </mover> </math>  $$ b\to c\tau \overline{\nu} $$  and b → sℓ + ℓ  −  transitions as well as the indications for a charged Higgs with a mass of 130 GeV in top quark decays. Including all relevant constraints from precision, flavour and collider observables, we find that it is possible to simultaneously explain both the charged and neutral current B anomalies. We study the impact of using different values for the W mass and the Standard Model prediction for the anomalous magnetic moment of the muon and provide predictions for observables that can probe our model in the future such as lepton flavour violation searches at Belle II and Higgs coupling strength measurements at the high-luminosity LHC.

Peter Athron

Tomás Gonzalo

Japan

Syuhei Iguro

Cristian Sierra

Global fit to the 2HDM with generic sources of flavour violation using GAMBIT

Statistically significant excesses exist at around 152 GeV in associated di-photon production (γγ + X) in the sidebands of SM Higgs analyses of ATLAS (using the full run-2 dataset). They are most pronounced in the single-τ, missing-transverse-energy, four-jet and ⩾ 1ℓ+ ⩾ 1b-jet channels (≈ 3σ) and can be explained by the Drell-Yan production of new Higgs bosons, i.e. pp → W *→ H  ±  H 0. We first examine the excesses in a simplified model approach, considering that H  ±  decays to τν, WZ or tb. Both the τν and tb decay modes individually lead to a significance of ⪅ 4σ while for WZ one can obtain at most 3.5σ. This is because the decays of WZ lead to multiple leptons contributing to the two-lepton channel which does not show an excess at 152 GeV. Next, we consider two-Higgs-doublet models where the charged Higgs does not decay to WZ at tree-level, finding a significance of ⪆ 4σ for a branching ratio of the new neutral Higgs to photons of ≈2%. Even though this branching fraction is quite sizable, it can be obtained in composite models or via the Lagrangian term  $${\lambda }_{6}{H}_{1}^{†}{H}_{1}{H}_{2}^{†}{H}_{1}$$  + h.c. breaking the commonly imposed Z 2 symmetry.

Explanation of the excesses in associated di-photon production at 152 GeV in 2HDM

In this article, we propose the <math><mrow><mi>Δ</mi><mn>2</mn><mi>HDM</mi><mi>S</mi></mrow></math> as a combined explanation of several excesses and anomalies observed at the LHC. Especially, <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover></math> differential distributions point towards the associated production of new electroweak scale Higgs bosons decaying into bottom quarks and <math><mi>W</mi></math> bosons (<math><mo>&gt;</mo><mn>5</mn><mi>σ</mi></math>) with masses consistent with the diphoton excesses at <math><mo>≈</mo><mn>95</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> and <math><mo>≈</mo><mn>151.5</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> (<math><mn>3.8</mn><mi>σ</mi></math> and <math><mn>4.9</mn><mi>σ</mi></math>, respectively). Furthermore, CMS found indications for resonant <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover></math> production at <math><mo>≈</mo><mn>400</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> (<math><mn>3.5</mn><mi>σ</mi></math>) and both ATLAS and CMS reported elevated four-top and <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover><mi>W</mi></math> cross sections. The <math><mrow><mi>Δ</mi><mn>2</mn><mi>HDM</mi><mi>S</mi></mrow></math> is obtained by supplementing the SM Higgs (<math><msub><mi>H</mi><mn>2</mn></msub></math>) with a second scalar doublet (<math><msub><mi>H</mi><mn>1</mn></msub></math>), real scalar singlet (<math><mi>S</mi></math>), and a Higgs triplet with zero hypercharge (<math><mi>Δ</mi></math>). We fix the masses of the neutral tripletlike and the singletlike scalars by the diphoton excesses, i.e., <math><msub><mi>m</mi><msup><mi>Δ</mi><mn>0</mn></msup></msub><mo>=</mo><mn>151.5</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> and <math><msub><mi>m</mi><mi>S</mi></msub><mo>=</mo><mn>95</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math>, respectively. <math><mrow><mi>H</mi></mrow></math>, the <math><mi>C</mi><mi>P</mi></math>-even component of <math><msub><mi>H</mi><mn>1</mn></msub></math>, is produced via gluon fusion from a top-loop and decays dominantly to <math><mi>S</mi><mo>+</mo><msup><mi>Δ</mi><mn>0</mn></msup></math> whose subsequent decays to <math><msup><mi>W</mi><mo>+</mo></msup><msup><mi>W</mi><mo>−</mo></msup></math> and <math><mi>b</mi><mover><mi>b</mi><mo>¯</mo></mover></math> explain the differential <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover></math> distributions for <math><mi>σ</mi><mo>(</mo><mi>p</mi><mi>p</mi><mo>→</mo><mi>H</mi><mo>→</mo><mi>S</mi><msup><mi>Δ</mi><mn>0</mn></msup><mo>)</mo><mo>≈</mo><mn>5</mn><mtext> </mtext><mtext> </mtext><mi>pb</mi></math>. Choosing the top-Yukawa of <math><msub><mi>H</mi><mn>1</mn></msub></math> accordingly, the <math><mi>C</mi><mi>P</mi></math>-odd Higgs boson <math><mi>A</mi></math> turns out to have the right production cross section to account for the resonant <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover></math> excess at 400 GeV, while the top-associated production of <math><mi>H</mi></math> and <math><mi>A</mi></math> results in new physics pollution of Standard Model <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover><mi>W</mi></math> and <math><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover><mi>t</mi><mover><mi>t</mi><mo>¯</mo></mover></math> cross sections, as preferred by the data.

Combined explanation of LHC multilepton, diphoton, and top-quark excesses

We study two-site deconstructions of the SU(2) L  gauge group factor of the SM. Models based on this approach can explain the hierarchies of the quark masses and CKM mixing between third and light families if these fields are localised on different sites by the presence of hierarchical new physics scales. The model leads to an accidental global U(2) q  × U(3) u  × U(3) d  flavour symmetry which prevents dangerously large effects in flavour observables, making a TeV extension of the SM possible. Given the structure of the PMNS matrix in the neutrino sector, we explore different possibilities for the arrangement of the leptons on the two sites, and consider different models with U(2) ℓ  or U(3) ℓ  flavour symmetries. The phenomenology of the models is mostly governed by a massive vector triplet of SU(2) L . We study the interesting interplay between LHC searches and precision observables. In particular, one of the models can give a sizeable lepton flavour universal effect in the Wilson coefficient C 9 while naturally suppressing contributions to C 10, as suggested by current b → sℓ + ℓ  −  data, predicting simultaneously a mild positive shift in the W boson mass.

United Kingdom

Italy

Spain

Bernat Capdevila

Javier Lizana

Poland

Stefan Pokorski

SU(2) L  deconstruction and flavour (non)-universality

We show that supplementing the Standard Model by only a second Higgs doublet, a combined explanation of <math><mi>h</mi><mo>→</mo><mi>e</mi><mi>τ</mi></math>, <math><mi>h</mi><mo>→</mo><mi>μ</mi><mi>τ</mi></math>, <math><mi>b</mi><mo>→</mo><mi>s</mi><msup><mo>ℓ</mo><mo>+</mo></msup><msup><mo>ℓ</mo><mo>−</mo></msup></math>, the <math><mi>W</mi></math> mass and <math><mi>R</mi><mo>(</mo><msup><mi>D</mi><mrow><mo>(</mo><mo>*</mo><mo>)</mo></mrow></msup><mo>)</mo></math> as well as the excess in <math><mi>t</mi><mo>→</mo><mi>b</mi><msup><mi>H</mi><mo>+</mo></msup><mo>(</mo><mn>130</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi><mo>)</mo><mo>→</mo><mi>b</mi><mover><mi>b</mi><mo>¯</mo></mover><mi>c</mi></math> is possible. While this requires flavor violating couplings, the stringent bounds from, e.g., <math><mi>μ</mi><mo>→</mo><mi>e</mi><mi>γ</mi></math>, <math><mi>τ</mi><mo>→</mo><mi>μ</mi><mi>γ</mi></math>, <math><msub><mi>B</mi><mi>s</mi></msub><mo>−</mo><msub><mover><mi>B</mi><mo>¯</mo></mover><mi>s</mi></msub></math> mixing, <math><mi>b</mi><mo>→</mo><mi>s</mi><mi>γ</mi></math>, low mass dijet, and <math><mi>p</mi><mi>p</mi><mo>→</mo><msup><mi>H</mi><mo>+</mo></msup><msup><mi>H</mi><mo>−</mo></msup><mo>→</mo><msup><mi>τ</mi><mo>+</mo></msup><msup><mi>τ</mi><mo>−</mo></msup><mi>ν</mi><mover><mi>ν</mi><mo>¯</mo></mover></math> searches can be avoided. However, the model is very constrained; it inevitably predicts a shift in the SM Higgs coupling strength to tau leptons as well as a nonzero <math><mi>t</mi><mo>→</mo><mi>h</mi><mi>c</mi></math> rate, as indeed preferred by recent measurements. We study three benchmark points providing such a simultaneous explanation and calculate their predictions, including collider signatures which can be tested with upcoming LHC run-3 data.