The Aligned two-Higgs Doublet model

Antonio Pich; Paula Tuzon

RECORD

The Aligned two-Higgs Doublet model

Antonio Pich, Paula Tuzon

High Energy Physics - Phenomenology · Submitted 2 Jan 2010

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings.

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.08 · human participants 0.01 · controlled comparison 0.01 · randomized assignment 0.01 · states quantitative result 0.32 · compares with prior results 0.31 · mentions code or data availability 0.01.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings. The resulting fermion-scalar interactions are parameterized in terms of three complex parameters, leading to a generic Yukawa structure which contains as particular cases all known specific implementations of the model based on Z2 symmetries. These three complex parameters are potential new sources of CP violation.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings.	background 0.91	0.13	0.35	asserted 1.00
s1	The resulting fermion-scalar interactions are parameterized in terms of three complex parameters, leading to a generic Yukawa structure which contains as particular cases all known specific implementations of the model based on Z2 symmetries.	contribution 0.56	0.58	0.18	asserted 1.00
s2	These three complex parameters are potential new sources of CP violation.	interpretation 0.90	0.33	0.19	hedged possibility 0.81

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.60.

What was examined, and what was not

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arXiv listing abstract v2

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full text
figures and tables
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P abstract

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S sections
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C citations
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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings. The resulting fermion-scalar interactions are parameterized in terms of three complex parameters, leading to a generic Yukawa structure which contains as particular cases all known specific implementations of the model based on Z2 symmetries. These three complex parameters are potential new sources of CP violation.

Human review

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References

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Matching $\nu$2HDM onto $\nu$SMEFT up to one-loop accuracy
hep-ph 2026-11 conditional novelty 7.0 of 10

The first complete one-loop dictionary from the neutrinophilic two-Higgs-doublet model to νSMEFT, with all Wilson coefficients expressed through the original high-scale parameters.
Non-resonant Flavoured leptogenesis with aligned two-Higgs doublet model and right-handed neutrinos
hep-ph 2026-10 conditional novelty 5.0 of 10

The aligned two-Higgs doublet model with two right-handed neutrinos can generate the observed baryon asymmetry via non-resonant flavoured leptogenesis in the 10-100 TeV mass range.
Theory and phenomenology of two-Higgs-doublet models
hep-ph 2011-05 accept novelty 3.0 of 10

The review organizes the theory and phenomenology of two-Higgs-doublet models, including flavour-safe variants, charged-scalar searches, vacuum stability, and minimal spontaneous CP-violation constructions.

How the literature uses it

13 arXiv papers cite this in 22 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 15 sentences without a confident label

Cites it as background 5 papers

* The four well-known types with $Z_2$ symmetry: type I, type II, type X, type Y, * the flavour-aligned () [ref] , which also avoids tree-level Higgs-mediated FCNC and contains the four previous types as special cases, * the with general Yukawa structures.

Two-loop Prediction of the Anomalous Magnetic Moment of the Muon in the Two-Higgs Doublet Model with GM2Calc 2 · The Model · 0.96
There has been an intense discussion on how the flavour problem can be solved within the class of models with two or more Higgs doublets [ref] .

Interpretation of charged Higgs effects in low energy flavour physics · Introduction · 0.93
This implementation of NFC is usually called “The Aligned 2HDM" [ref] .

Is there a (Pseudo)Scalar at 95 GeV? · Minimal Flavour Violation and Natural Flavour Conservation · 0.92

What it cites · 3 sentences without a confident label

Uses data or values from 2 papers

From the present knowledge of $B^+→τ^+ ν_τ$ [ref] , we obtain $|1-Δ_ub|=1.32±0.20$ which implies $M_H^±/√(|Re(ζ_l^+ζ_d)|)>5.7$ GeV ($90%$ CL).

Flavor Physics in the Quark Sector · Phenomenology · 1.00
Assuming that $Br(H^+→c s̅)+Br(H^+→τ^+ ν_τ)=1$, the combined LEP data on $e^+e^- →H^+ H^-$ constrain $M_H^±>78.6$ GeV (95% CL) [ref] .

Search for Charged Higgs bosons: Preliminary Combined Results Using LEP data Collected at Energies up to 209 GeV · Phenomenology · 0.95

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