Decay of standard-model-like Higgs boson 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>h</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>μ</mml:mi><mml:mi>τ</mml:mi></mml:math>
 in a 3-3-1 model with inverse seesaw neutrino masses

Thanh-Hai, Nguyen; Hue, L. T.; Hong, T. T.

doi:10.1103/physrevd.97.073003

Cited by 31 publications

(10 citation statements)

References 105 publications

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“…3-3-1 models are based on the SUð3Þ C × SUð3Þ L × Uð1Þ N gauge symmetry and were originally introduced since they offer a plausible answer to the number of generations in the Standard Model. These models have been extensively studied in contexts such as dark matter [44][45][46][47][48][49][50][51][52][53][54][55][56], flavor physics [57][58][59][60][61], neutrino masses [62][63][64][65][66][67][68][69][70][71], and collider physics [72][73][74][75].…”

Section: -3-1 Modelsmentioning

confidence: 99%

Vectorlike leptons and inert scalar triplet: Lepton flavor violation, g−2 , and collider searches

et al. 2020

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We investigate simplified models involving an inert scalar triplet and vectorlike leptons that can account for the muon g − 2 anomaly. These simplified scenarios are embedded in a model that features W' and Z' bosons, which are subject to stringent collider bounds. The constraints coming from the muon g − 2 anomaly are put into perspective with collider bounds, as well as bounds coming from lepton flavor violation searches. The region of parameter space that explains the g − 2 anomaly is shown to be within reach of lepton flavor violation probes and future colliders such as HL-LHC and HE-LHC.

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Section: -3-1 Modelsmentioning

confidence: 99%

Vectorlike leptons and inert scalar triplet: Lepton flavor violation, g−2 , and collider searches

et al. 2020

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“…and nicely hosting dark matter candidates [14][15][16][17][18][19][20][21], addressing neutrino masses [22][23][24][25], among other interesting phenomena [3,[26][27][28][29][30][31][32][33]. As a result of the enlarged gauge group, the 3-3-1 model have several new gauge bosons, such as W and Z bosons, which are subject to restrictive constraints rising from collider physics [34][35][36][37], muon anomalous magnetic moment [38][39][40][41], and lepton flavor violation [42,43].…”

Section: Introductionmentioning

confidence: 99%

Rare Kaon Decay to Missing Energy: Implications of the NA62 Result for a $Z^\prime$ Model

de Melo,

Kovalenko,

Queiroz

et al. 2021

Preprint

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Meson decays offer a good opportunity to probe new physics. The rare kaon decay K + → π + ν ν is one of the cleanest of them and, for this reason, is rather sensitive to new physics, in particular, vector mediators. NA62 collaboration, running a fixed-target experiment at CERN, recently reported an unprecedented sensitivity to this decay, namely a branching fraction of BR(K + → π + ν ν) = (11 +4.0 −3.5 ) × 10 −11 at 68% C.L. Vector mediators that couple to neutrinos may yield a sizeable contribution to this decay. Motivated by the new measurement, we interpret this result in the context of a concrete Z model, and put our findings into perspective with the correlated KL → π 0 ν ν decay measured by KOTO collaboration, current, and future colliders, namely the High-Luminosity and High-Energy LHC.

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“…effective Lagrangians [49][50][51][52][53] and many others [54][55][56][57][58][59][60][61][62][63][64][65][66][67]. Indeed, some of these works used the MIA technique for computing the LFVHD rates [13,33].…”

Section: Introductionmentioning

confidence: 99%

Flavor Techniques for LFV Processes: Higgs Decays in a General Seesaw Model

Marcano

Morales

2020

Front. Phys.

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Lepton flavor violating processes are optimal observables to test new physics, since they are forbidden in the Standard Model while they may be generated in new theories. The usual approach to these processes is to perform the computations in the physical basis; nevertheless this may lose track of the dependence on some of the fundamental parameters, in particular on those at the origin of the flavor violation. Consequently, in order to obtain analytical expressions directly in terms of these parameters, flavor techniques are often preferred. In this work, we focus on the mass insertion approximation technique, which works with the interaction states instead of the physical ones, and provides diagrammatic expansions of the observables. After reviewing the basics of this technique with two simple examples, we apply it to the lepton flavor violating Higgs decays in the framework of a general type-I seesaw model with an arbitrary number of right-handed neutrinos. We derive an effective vertex valid to compute these observables when the right-handed neutrino masses are above the electroweak scale and show that we recover previous results obtained for low scale seesaws. Finally, we apply current constraints on the model to conclude on maximum Higgs decay rates, which unfortunately are far from current experimental sensitivities.

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Decay of standard-model-like Higgs boson h→μτ in a 3-3-1 model with inverse seesaw neutrino masses

Cited by 31 publications

References 105 publications

Vectorlike leptons and inert scalar triplet: Lepton flavor violation, g−2 , and collider searches

Vectorlike leptons and inert scalar triplet: Lepton flavor violation, g−2 , and collider searches

Rare Kaon Decay to Missing Energy: Implications of the NA62 Result for a $Z^\prime$ Model

Flavor Techniques for LFV Processes: Higgs Decays in a General Seesaw Model

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