REVIEW 10 cited by
A 96 GeV Higgs Boson in the 2HDM plus Singlet
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
We discuss a $\sim 3\,\sigma$ signal (local) in the light Higgs-boson search in the diphoton decay mode at $\sim 96$ GeV as reported by CMS, together with a $\sim 2\,\sigma$ excess (local) in the $b \bar b$ final state at LEP in the same mass range. We interpret this possible signal as a Higgs boson in the 2 Higgs Doublet Model type II with an additional Higgs singlet, which can be either complex (2HDMS) or real (N2HDM). We find that the lightest CP-even Higgs boson of the two models can equally yield a perfect fit to both excesses simultaneously, while the second lightest state is in full agreement with the Higgs-boson measurements at $125$ GeV, and the full Higgs-boson sector is in agreement with all Higgs exclusion bounds from LEP, the Tevatron and the LHC as well as other theoretical and experimental constraints. We derive bounds on the 2HDMS and N2HDM Higgs sectors from a fit to both excesses and describe how this signal can be further analyzed at future $e^+e^-$ colliders, such as the ILC. We analyze in detail the anticipated precision of the coupling measurements of the $96$ GeV Higgs boson at the ILC. We find that these Higgs-boson measurements at the LHC and the ILC cannot distinguish between the two Higgs-sector realizations.
Forward citations
Cited by 10 Pith papers
-
The 95 GeV Excess in Models with Two Higgs Doublets plus One Singlet: Model Distinction via Four-top Final States and Triple Higgs Couplings
Using the 95 GeV excess benchmarks, four-top production at HL-LHC and di-Higgs production at ILC500 can distinguish the N2HDM from the 2HDMS for pseudoscalar-mixing angles beyond a computed 'α4 limit'.
-
Interpreting Light Scalar Excesses and Heavy Scalar Cascades in the $\mu$-Term Extended NMSSM
Viable μNMSSM regions can fit the 95 GeV diphoton/bb anomalies and produce H→hhs and A2→hA1→4b cascades near the 650 and (600,400) GeV CMS structures.
-
The electroweak precision constraints of the 2HDM+S
Electroweak precision data impose approximate mass relations and mass-splitting upper bounds on the 2HDM+S Higgs sector, with the charged Higgs mass on one side of each relation.
-
Vacuum Instability and False Vacuum Decay Induced by Domain Walls in the N2HDM
Domain walls in the N2HDM can erase the barrier around the electroweak vacuum, making long-lived metastable vacua decay classically and excluding parameter points previously considered viable.
-
Light Scalars in the Extended Georgi-Machacek Model
A global fit of the Georgi-Machacek and extended Georgi-Machacek models finds that the 95 GeV diphoton and bottom-quark excesses are compatible with the 125 GeV Higgs data, while the ditau excess is not, and it sets u...
-
On the CP Nature of the `95 GeV' Anomalies
A projection study showing that HL-LHC tau-pair data could determine the CP mixing angle of a hypothetical 95 GeV resonance to within roughly 0.27 to 0.47 radians at 90% confidence.
-
Interplay of $95$ GeV Diphoton Excess and Dark Matter in Supersymmetric Triplet Model
A parameter scan shows the triplet-extended MSSM has regions that fit the 95 GeV diphoton signal, the 125 GeV Higgs mass, and the dark matter relic density simultaneously.
-
Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
The Georgi-Machacek model keeps viable parameter space for the 95 GeV diphoton and bbbar excesses under positive definiteness constraints, which the paper finds expand the allowed region relative to tree-level bounded...
-
96 GeV Scalar Boson in the 2HDM with U(1)_H Gauge Symmetry
Type-II and Type-Y two-Higgs-doublet models with a gauged U(1)_H symmetry can accommodate the 96 GeV diphoton, ditau, and bbbar excesses within 2 sigma, with the light scalar mostly a new singlet.
-
Exploring Potential Higgs Resonances at 650 GeV and 95 GeV in the 2HDM Type III
In a 2HDM Type III, a 650 GeV CP-odd Higgs decaying via H(125)Z with H->γγ and Z->bb, plus a 95 GeV light Higgs, can accommodate both the CMS 650 GeV and the 95 GeV diphoton excesses at about 2.5 sigma.
Discussion (0). Continue with ORCID to comment.