Lepton flavor violation within the Simplest Little Higgs model

Enrique Ramirez; Pablo Roig

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Lepton flavor violation within the Simplest Little Higgs model

Enrique Ramirez, Pablo Roig

High Energy Physics - Phenomenology · Submitted 20 May 2022

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

The authors' main claim Then, the tau sector could help discriminating this model not only via $\tau\to\ell\gamma$ ($\ell=\mu,e$) and $\tau\to3\ell$ decays, but also by means of $\ell\to\tau$ conversion in nuclei, which is promising in this respect.

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What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.71 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.10 · mentions code or data availability 0.01.

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

We carry out an exhaustive analysis of lepton flavor violating processes within the Simplest Little Higgs model. Its discovery could be expected from either $\mu\to e$ conversion in nuclei, $\mu\to e\gamma$ or $\mu\to3e$ decays. Then, the tau sector could help discriminating this model not only via $\tau\to\ell\gamma$ ($\ell=\mu,e$) and $\tau\to3\ell$ decays, but also by means of $\ell\to\tau$ conversion in nuclei, which is promising in this respect. Although the model violates slightly custodial symmetry, acommodating the recent CDF $M_W$ measurement is in tension with electroweak precision data.

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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	We carry out an exhaustive analysis of lepton flavor violating processes within the Simplest Little Higgs model.	contribution 1.00	0.95	0.08	asserted 0.96
s1	Its discovery could be expected from either $\mu\to e$ conversion in nuclei, $\mu\to e\gamma$ or $\mu\to3e$ decays.	result 0.31	0.11	0.12	hedged possibility 1.00
s2	Then, the tau sector could help discriminating this model not only via $\tau\to\ell\gamma$ ($\ell=\mu,e$) and $\tau\to3\ell$ decays, but also by means of $\ell\to\tau$ conversion in nuclei, which is promising in this respect.	interpretation 0.45	0.33	0.15	hedged possibility 0.97
s3	Although the model violates slightly custodial symmetry, acommodating the recent CDF $M_W$ measurement is in tension with electroweak precision data.	limitation 0.51	0.33	0.11	asserted 0.91

What kind of paper the classifier reports this is: theoretical result 0.98 · evidence from proof or derivation 0.47.

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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

We carry out an exhaustive analysis of lepton flavor violating processes within the Simplest Little Higgs model. Its discovery could be expected from either $\mu\to e$ conversion in nuclei, $\mu\to e\gamma$ or $\mu\to3e$ decays. Then, the tau sector could help discriminating this model not only via $\tau\to\ell\gamma$ ($\ell=\mu,e$) and $\tau\to3\ell$ decays, but also by means of $\ell\to\tau$ conversion in nuclei, which is promising in this respect. Although the model violates slightly custodial symmetry, acommodating the recent CDF $M_W$ measurement is in tension with electroweak precision data.

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4 arXiv papers cite this in 4 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 · 3 sentences without a confident label

Cites it as background 1 paper

Besides the 2HDM model, there are several other well-motivated extended Higgs sector models where LFV decays might naturally arise, such as in the little Higgs models [ref] , left-right symmetric models [ref] , mirror models [ref] , supersymmetric models [ref] , models with flavor symmetries [ref] , composite Higgs models [ref] , warped extra-dimension models [ref] , models with higher-dimensional operators [ref] , neutrino mass models [ref] and other models [ref] .

Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel · BSM Higgs LFV decay at the HL-LHC · 0.93

What it cites · 78 sentences without a confident label

Contests 1 paper

the results[Through this work we have found a few typos in the Feynman rules and form factors given previously.] to order $𝒪(v^2/f^2)$ are given in tables [ref] and [ref] [ref] :

Lepton flavor violation in the Simplest Little Higgs model · Vector-Boson Lagrangian · contest 0.85

Uses the method or tool of 8 papers

To account for this, we use the fit of the nuclear parton distribution functions (nPDFs) provided by the NCTQ15 project [ref] which is incorporated in the ManeParse Mathematica package [ref] .

ManeParse: a Mathematica reader for Parton Distribution Functions · TEXT conversion in nuclei · 0.93
To account for this, we use the fit of the nuclear parton distribution functions (nPDFs) provided by the NCTQ15 project [ref] which is incorporated in the ManeParse Mathematica package [ref] .

nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties · TEXT conversion in nuclei · 0.93
[ref] , we have scanned over $−1≤s_ij ≤1$ ensuring the low-energy restrictions and, in addition, we assumed for simplicity CP conservation (phase in $V^ℓi$ set to zero).

$H\to \ell\ell'$ in the Simplest Little Higgs Model · Numerical Results · 0.85

Uses data or values from 8 papers

The scale of compositeness, $f$, can be estimated through the direct search of $Z'$ bosons at LHC [ref] , where the lower limit is set as [ref] $f ≳7.5$ TeV at $95 %$ C.L.

Spontaneous CP-violation in the Simplest Little Higgs Model and its Future Collider Tests: the Scalar Sector · Numerical Results · 0.97
The scale of compositeness, $f$, can be estimated through the direct search of $Z'$ bosons at LHC [ref] , where the lower limit is set as [ref] $f ≳7.5$ TeV at $95 %$ C.L.

Search for new high-mass phenomena in the dilepton final state using 36 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector · Numerical Results · 0.97
[ref] and take the ratios involving them as: $0.1 ≤x_1 ≤0.25$, $1.1x_1 ≤x_2 ≤10x_1$, $1.1x_2 ≤x_3 ≤10x_2$ (we remind that $x_i$ depends quadratically on the $N_i$ mass), where we include the cases of a small splitting $x_2 = 1.1x_1$ and a large one $x_2 = 10x_1$ (analogously for $x_3$).

$H\to \ell\ell'$ in the Simplest Little Higgs Model · Numerical Results · 0.80

Cites as background 25 papers

LFV has already been studied within the SLH in slightly different approaches [ref] [Only ref.

Lepton Flavour Violation in Hadron Decays of the Tau Lepton in the Simplest Little Higgs Model · Introduction · 0.83
LFV has already been studied within the SLH in slightly different approaches [ref] [Only ref.

$H\to \ell\ell'$ in the Simplest Little Higgs Model · Introduction · 0.83
LFV has already been studied within the SLH in slightly different approaches [ref] [Only ref.

The lepton flavor violating decays $Z\to l_i l_j$ in the simplest little Higgs model · Introduction · 0.83

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