scholarly journals Complete analysis of photino-mediated lepton flavor violations in generalized supersymmetric models

1999 ◽  
Vol 59 (5) ◽  
Author(s):  
Yeong Gyun Kim ◽  
Pyungwon Ko ◽  
Jae Sik Lee ◽  
Kang Young Lee
Keyword(s):  
Complete Analysis ◽  
Lepton Flavor ◽  
Supersymmetric Models ◽  
Flavor Violations

scholarly journals Neutrino mixings as a source of lepton flavor violations

2018 ◽  
Vol 33 (32) ◽  
pp. 1850201
Author(s):  
O. M. Boyarkin ◽  
G. G. Boyarkina ◽  
D. S. Vasileuskaya
Keyword(s):  
Branching Ratios ◽  
Point Of View ◽  
Heavy Neutrino ◽  
Neutrino Masses ◽  
Symmetric Model ◽  
Neutrino Mixing ◽  
Third Order ◽  
Neutrino Sector ◽  
Lepton Flavor ◽  
Flavor Violations

Within the left–right symmetric model (LRM) the [Formula: see text] boson decay into the channel [Formula: see text] are investigated. The branching ratios of this decay is found in the third order of the perturbation theory. The obtained expression does not equal to zero only at the existence of the neutrino mixings. This means that from the point of view of the LRM, the nonconservations of the neutral and the charged lepton flavors have the same nature. As a result, the elucidation of the decays [Formula: see text] [Formula: see text] could provide data concerned the neutrino sector structure of the LRM. The neutrino sector parameters which could be measured in that case are as follows: (i) difference of the heavy neutrino masses; (ii) heavy–heavy neutrino mixing; (iii) heavy–light neutrino mixing.

scholarly journals Symmetric Mass Matrix with Two Zeros in SUSY SO(10) GUT, Lepton Flavor Violations and Leptogenesis

2004 ◽  
Vol 112 (3) ◽  
pp. 533-567 ◽  
Author(s):  
M. Bando ◽  
S. Kaneko ◽  
M. Obara ◽  
M. Tanimoto
Keyword(s):  
Mass Matrix ◽  
Lepton Flavor ◽  
Flavor Violations

scholarly journals Lepton Flavor Violation beyond the MSSM

2015 ◽  
Vol 2015 ◽  
pp. 1-22 ◽  
Author(s):  
A. Vicente
Keyword(s):  
Standard Model ◽  
Parity Violation ◽  
New Physics ◽  
Lepton Flavor Violation ◽  
Lepton Sector ◽  
Lepton Flavor ◽  
Flavor Violation ◽  
The Standard Model ◽  
Supersymmetric Models ◽  
Characteristic Features

Most extensions of the Standard Model lepton sector predict large lepton flavor violating rates. Given the promising experimental perspectives for lepton flavor violation in the next few years, this generic expectation might offer a powerful indirect probe to look for new physics. In this review we will cover several aspects of lepton flavor violation in supersymmetric models beyond the Minimal Supersymmetric Standard Model. In particular, we will concentrate on three different scenarios: high-scale and low-scale seesaw models as well as models withR-parity violation. We will see that in some cases the LFV phenomenology can have characteristic features for specific scenarios, implying that dedicated studies must be performed in order to correctly understand the phenomenology in nonminimal supersymmetric models.

scholarly journals Lepton flavor violations in SUSY models for muon g − 2 with right-handed neutrinos

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Ryo Nagai ◽  
Norimi Yokozaki
Keyword(s):  
Standard Model ◽  
Susy Breaking ◽  
Tree Level ◽  
Higgs Potential ◽  
Vacuum Stability ◽  
Lepton Flavor ◽  
Stability Constraint ◽  
Model Independent ◽  
Susy Models ◽  
Flavor Violations

Abstract We consider supersymmetric (SUSY) models for the muon g − 2 anomaly without flavor violating masses at the tree-level. The models can avoid LHC constraints and the vacuum stability constraint in the stau-Higgs potential. Although large flavor violating processes are not induced within the framework of minimal SUSY standard model, once we adopt a seesaw model, sizable lepton flavor violating (LFV) processes such as μ → eγ and μ → e conversion are induced. These LFV processes will be observed at future experiments such as MEG-II, COMET and Mu2e if right-handed neutrinos are heavier than 109 GeV motivated by the successful leptogenesis. This conclusion is somewhat model independent since Higgs doublets are required to have large soft SUSY breaking masses, leading to flavor violations in a slepton sector via neutrino Yukawa interactions.

scholarly journals Radiative lepton mass and muon g − 2 with suppressed lepton flavor and CP violations

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Wen Yin
Keyword(s):  
Beyond Standard Model ◽  
Dipole Moment ◽  
B Physics ◽  
Mass Matrix ◽  
Cp Violations ◽  
Lepton Flavor ◽  
Higher Dimensional ◽  
Electron Electric Dipole Moment ◽  
The Masses ◽  
Flavor Violations

Abstract The recent experimental status, including the confirmation of the muon g − 2 anomaly at Fermilab, indicates a Beyond Standard Model (BSM) satisfying the following properties: 1) it enhances the g − 2 2) suppresses flavor violations, such as μ → eγ, 3) suppresses CP violations, such as the electron electric dipole moment (EDM). In this letter, I show that the eigenbasis of the mass matrix and higher dimensional photon operators can be automatically aligned if the masses of heavy leptons are generated radiatively together with the g − 2. As a result, the muon g − 2 is enhanced but the EDM of the electron and μ → eγ rate are naturally suppressed. Phenomenology and applications of the mechanism to the B-physics anomalies are argued.

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