scholarly journals Erratum to: Lepton flavor changing Higgs decays in the littlest Higgs model with T-parity

2019 ◽  
Vol 2019 (2) ◽  
Author(s):  
Francisco del Aguila ◽  
Lluis Ametller ◽  
Jose Ignacio Illana ◽  
Jose Santiago ◽  
Pere Talavera ◽  
...  
Keyword(s):  
Higgs Model ◽  
Lepton Flavor ◽  
Flavor Changing

scholarly journals THE LEPTON FLAVOR VIOLATING DECAYS Z→li lj IN THE SIMPLEST LITTLE HIGGS MODEL

2012 ◽  
Vol 27 (28) ◽  
pp. 1250158 ◽  
Author(s):  
XIAO-FANG HAN ◽  
LEI WANG
Keyword(s):  
Standard Model ◽  
Z Boson ◽  
Branching Ratios ◽  
Higgs Model ◽  
Little Higgs ◽  
Decay Modes ◽  
Lepton Flavor ◽  
Loop Level ◽  
Flavor Changing ◽  
The Standard Model

In the simplest little Higgs model the new flavor-changing interactions between heavy neutrinos and the Standard Model leptons can generate contributions to some lepton flavor violating decays of Z-boson at one-loop level, such as Z→τ±μ∓, Z→τ±e∓ and Z→μ±e∓. We examine the decay modes and find that the branching ratios can reach 10-7 for the three decays, which should be accessible at the GigaZ option of the ILC.

scholarly journals Lepton flavor changing Higgs decays in the littlest Higgs model with T-parity

2017 ◽  
Vol 2017 (8) ◽  
Author(s):  
Francisco del Aguila ◽  
Lluis Ametller ◽  
Jose Ignacio Illana ◽  
Jose Santiago ◽  
Pere Talavera ◽  
...  
Keyword(s):  
Higgs Mass ◽  
Branching Ratio ◽  
Finite Amplitude ◽  
Higgs Model ◽  
Lepton Flavor Violation ◽  
Lepton Flavor ◽  
Flavor Violation ◽  
Flavor Changing ◽  
Phenomenological Studies ◽  
The Right

Abstract We calculate loop induced lepton flavor violating Higgs decays in the Littlest Higgs model with T-parity. We find that a finite amplitude is obtained only when all contributions from the T-odd lepton sector are included. This is in contrast to lepton flavor violating processes mediated by gauge bosons where the partners of the right-handed mirror leptons can be decoupled from the spectrum. These partners are necessary to cancel the divergence in the Higgs mass introduced by the mirror leptons but are otherwise unnecessary and assumed to be decoupled in previous phenomenological studies. Further-more, as we emphasize, including the partner leptons in the spectrum also introduces a new source of lepton flavor violation via their couplings to the physical pseudo-Goldstone electroweak triplet scalar. Although this extra source also affects lepton flavor changing gauge transitions, it decouples from these amplitudes in the limit of heavy mass for the partner leptons. We find that the corresponding Higgs branching ratio into taus and muons can be as large as ∼ 0.2 × 10−6 for T-odd masses of the order a few TeV, a demanding challenge even for the high luminosity LHC.

Flavons and LFV decays and productions of pseudoscalar mesons

2019 ◽  
Vol 34 (35) ◽  
pp. 1950288
Author(s):  
Tian-Qi Li ◽  
Chong-Xing Yue
Keyword(s):  
Standard Model ◽  
Symmetry Breaking ◽  
Flavor Symmetry ◽  
Lepton Flavor ◽  
Flavor Changing ◽  
Pseudoscalar Mesons ◽  
The Standard Model

Flavons are the dynamic agent of flavor symmetry breaking and have flavor changing couplings to the Standard Model (SM) fermions. We consider their contributions to the lepton flavor violating (LFV) decays [Formula: see text] and [Formula: see text] with [Formula: see text], [Formula: see text] or [Formula: see text] and [Formula: see text] in the simplest flavon model without Higgs-flavon mixing. We find that flavons can produce significant contributions to some of these LFV decay processes.

scholarly journals Flavor-Changing Bottom-Strange Associated in the Littlest Higgs Model with T-parity at the ILC

2011 ◽  
Vol 56 (4) ◽  
pp. 703-708 ◽  
Author(s):  
Bing-Zhong Li ◽  
Jin-Zhong Han ◽  
Bing-Fang Yang
Keyword(s):  
Higgs Model ◽  
Flavor Changing

An investigation into the lepton flavor changing neutral current at a Z-factory

2010 ◽  
Vol 53 (11) ◽  
pp. 1957-1960
Author(s):  
XiaoPeng Li ◽  
Lei Guo ◽  
Liang Han ◽  
WenGan Ma ◽  
RenYou Zhang
Keyword(s):  
Neutral Current ◽  
Lepton Flavor ◽  
Flavor Changing ◽  
Flavor Changing Neutral Current
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