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There have been many theoretical models constructed which aim to explain the neutrino masses and mixing patterns. While many of the models will be eliminated once more accurate determinations of the mixing parameters, especially $\sin^2…

High Energy Physics - Phenomenology · Physics 2008-11-26 Carl H. Albright , Mu-Chun Chen

Searches at the LHC of lepton flavour violation (LFV) in slepton decays can indirectly test both type-I and II seesaw mechanisms. Assuming universal flavour-blind boundary conditions, LFV in the neutrino sector is related to LFV in the…

High Energy Physics - Phenomenology · Physics 2015-05-14 Albert Villanova del Moral

Lepton flavor violation (LFV) is studied within a realistic unified framework, based on supersymmetric SO(10) or an effective G(224) = SU(2)_L\times SU(2)_R\times SU(4)^c symmetry, that successfully describes (i) fermion masses and mixings,…

High Energy Physics - Phenomenology · Physics 2014-11-18 K. S. Babu , Jogesh C. Pati , Parul Rastogi

We analyze the lepton flavor violation processes $\mu-e$ conversion, $l_i\rightarrow l_j\gamma$ and $l_i\rightarrow 3l_j$ in framework of the Standard Model (SM) extended with inverse seesaw mechanism, as a function of $\tilde{\eta} = 1…

High Energy Physics - Phenomenology · Physics 2013-12-10 Ke-Sheng Sun , Tai-Fu Feng , Guo-Hui Luo , Xiu-Yi Yang , Jian-Bin Chen

The lepton flavor violating (LFV) decays $h, Z\to e_b e_a $, and $e_b\to e_a \gamma$ are discussed in a class of general 3-3-1 models adding heavy neutral leptons and singly charged Higgs bosons to accommodate experimental data of neutrino…

High Energy Physics - Phenomenology · Physics 2024-10-03 T. T. Hong , L. T. T. Phuong , T. Phong Nguyen , N. H. T. Nha , L. T. Hue

Flavor physics has been crucial in the development of particle physics and it will keep being so in the future. Nowadays, this kind of processes, in particular lepton flavor changing observed in neutrino oscillations, give us the clearest…

High Energy Physics - Phenomenology · Physics 2017-10-24 X. Marcano

Lepton flavor violation (LFV), observed conclusively in neutrino oscillations, remains a pivotal area of investigation due to its absence in the Standard Model (SM). Beyond the Standard Model (BSM) physics explores charged lepton flavor…

High Energy Physics - Phenomenology · Physics 2024-10-29 Jia Liu , Muyuan Song , Haohao Zhang

The minimal type-I seesaw model provides a simple explanation of neutrino flavor oscillations and induces charged lepton flavor violation (cLFV). Despite extensive previous studies, semileptonic cLFV channels remain underexplored. Using…

High Energy Physics - Phenomenology · Physics 2026-04-30 Kevin A. Urquía-Calderón , Oleg Ruchayskiy

The MEG II experiment searches for the Charged Lepton Flavour Violating (CLFV) decay $\mu\rightarrow e \gamma$. This decay is foreseen by the Standard Model (SM) of Particle Physics at non observable rates through neutrino oscillation.…

High Energy Physics - Experiment · Physics 2019-12-19 Manuel Meucci

The observation of lepton flavour violation (LFV) in interactions involving charged leptons would be an unambiguous sign of physics beyond the Standard Model of particle physics. Given that muons can be produced at high intensities,…

High Energy Physics - Experiment · Physics 2023-10-25 Ann-Kathrin Perrevoort

We reconsider the role that the possible detection of lepton flavour violating (LFV) decays of supersymmetric particles at the Large Hadron Collider (LHC) can play in helping reconstruct the underlying neutrino mass generation mechanism…

High Energy Physics - Phenomenology · Physics 2009-05-06 J. N. Esteves , M. Hirsch , W. Porod , J. C. Romao , J. W. F. Valle , A. Villanova del Moral

Neutrino masses provide evidence of lepton flavour violation, but no violation in the interactions among the charged leptons has been observed yet. Many models of Physics Beyond the Standard Model (BSM) predict Charged Lepton Flavour…

High Energy Physics - Phenomenology · Physics 2023-09-15 Marco Ardu , Gianantonio Pezzullo

We analyze the most natural formulations of the minimal lepton flavour violation hypothesis compatible with a type-I seesaw structure with three heavy singlet neutrinos N, and satisfying the requirement of being predictive, in the sense…

High Energy Physics - Phenomenology · Physics 2011-08-03 Rodrigo Alonso , Gino Isidori , Luca Merlo , Luis Alfredo Muñoz , Enrico Nardi

We review Lepton Flavour Violation (LFV) in the supersymmetric version of the seesaw mechanism (type I, II, III) and in Left-Right models. The LFV needed to explain neutrino masses and mixings is the only source of LFV and has experimental…

High Energy Physics - Phenomenology · Physics 2011-05-30 Jorge C. Romao

Here I review the status and prospects of experimental investigations into lepton flavor violation (LFV) in charged leptons. Rare LFV processes are naturally expected to occur through loops of TeV scale particles predicted by supersymmetric…

High Energy Physics - Experiment · Physics 2008-11-26 Toshinori Mori

One of the possible ways to explain the observed flavour structure of fundamental particles is to include flavor symmetries in the theories. In this work, we investigate the rare charged lepton flavour violating (cLFV) decay process ($\mu…

High Energy Physics - Phenomenology · Physics 2023-01-30 Maibam Ricky Devi , Kalpana Bora

This dissertation reviews the Standard Model formalism as well as the Lepton Flavour Violating (LFV) decay processes which cause its extension, known as the physics beyond the SM. Firstly, using the experimental bounds on three body LFV…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. Jamil Aslam

We investigate charged lepton flavor violating (CFLV) processes in the `neutrinophilic Higgs+seesaw model', in which right-handed neutrinos couple only with an extra Higgs field which develops a tiny VEV and the right-handed neutrinos also…

High Energy Physics - Phenomenology · Physics 2020-07-29 Naoyuki Haba , Tsuneharu Omija , Toshifumi Yamada

Flavor violating processes in the lepton sector have highly suppressed branching ratios in the standard model. Thus, observation of lepton flavor violation (LFV) constitutes a clear indication of physics beyond the standard model (BSM). We…

High Energy Physics - Phenomenology · Physics 2022-03-09 Alexey A. Petrov , Renae Conlin , Cody Grant

Motivated from the recent results of neutrino oscillation experiment, we investigated lepton flavor violating (LFV) processes in a SU(5) supersymmetric grand unified theory with right-handed neutrino. The current experimental upper bound…

High Energy Physics - Phenomenology · Physics 2009-11-07 Seungwon Baek , Toru Goto , Yasuhiro Okada , Ken-ichi Okumura