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Related papers: Lepton-Flavor Violation with Non-universal Soft Te…

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The observation of a charged-lepton flavor violating process would be a definite sign for physics beyond the Standard Model, but would actually only prove that one particular linear combination of lepton numbers is violated. We categorize…

High Energy Physics - Phenomenology · Physics 2017-02-01 Julian Heeck

We discuss charged lepton flavour violating processes such as mu -> e gamma in supersymmetric extensions of the Standard Model and in models with gauge-Higgs unification and a warped extra dimension. In both classes of models the processes…

High Energy Physics - Phenomenology · Physics 2015-06-17 C. Hagedorn

A recent proposal for explaining discrepancies in angular observables in the rare decay B --> K*mu+mu- with a gauged L_mu - L_tau current carried with it the prediction of lepton flavor universality violation in related B-meson decays. This…

High Energy Physics - Phenomenology · Physics 2015-10-21 Wolfgang Altmannshofer , Itay Yavin

Lepton flavor and CP violation in supersymmetric models are briefly reviewed. After a short motivation and an introduction to the phenomenology, model independent constraints on mass insertions, predictions of SUSY GUT models and rates for…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. I. Illana , M. Masip

Tree-level lepton-flavor-violating decays induced by Lorentz-violating effects within the Yukawa sector of the Standard Model Extension are studied. These new physics effects are parameterized by the $(Y_{f})_{\mu\nu}^{AB}$ tensor, with…

High Energy Physics - Phenomenology · Physics 2026-03-23 J. Montaño-Domínguez , F. Ramírez-Zavaleta , E. S. Tututi , O. Vázquez-Hernández

We consider lepton-flavor violation in strangeness changing ($|\Delta S|=1$) semileptonic $\tau$-lepton decays arising from new physics encoded in a standard model effective Lagrangian. Its invariance under the standard model gauge group…

High Energy Physics - Phenomenology · Physics 2019-09-11 Xiao-Gang He , Jusak Tandean , German Valencia

In this paper, we study the lepton flavor violating decays of the $l_j\rightarrow l_i \gamma\gamma$ (j=2, 3; i=1, 2) processes under the $U(1)_X$SSM. The $U(1)_X$SSM is the addition of three singlet new Higgs superfields and right-handed…

High Energy Physics - Phenomenology · Physics 2023-10-31 Ming-Yue Liu , Shu-Min Zhao , Yi-Tong Wang , Xi Wang , Xin-Xin Long , Tong-Tong Wang , Hai-Bin Zhang , Tai-Fu Feng

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

We study a lepton flavor violating $\mu N \to \tau X$ reaction in deep inelastic scattering region in supersymmetric models. The contribution from the Higgs boson mediation could be important for this reaction. For that case, the cross…

High Energy Physics - Phenomenology · Physics 2009-11-10 Shinya Kanemura , Yoshitaka Kuno , Masahiro Kuze , Toshihiko Ota

Realistic predictions are made for the rates of lepton flavour violating Higgs boson decays, tau --> mu gamma, mu --> e gamma, Bs --> mu+mu-, Bs --> tau mu and tau --> 3mu, via a top-down analysis of the Minimal Supersymmetric Standard…

High Energy Physics - Phenomenology · Physics 2011-03-23 J. K. Parry

Lepton-flavour violating processes, such as $\mu \to e\gamma$, are studied in ordinary (non-SUSY) SU(5) and SUSY SU(5) grand unified theories. First given are some introductory argument on the mechanism of U.V. divergence cancellation in…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. S. Lim

Charged lepton-flavor violating processes are extremely rare in the Standard Model, but they may occur in several beyond-the-Standard Model theories, including Supersymmetry or models with leptoquarks or compositeness. We present a search…

High Energy Physics - Experiment · Physics 2008-12-08 The BABAR Collaboration , B. Aubert

Searches for lepton-flavor-violating decay of a tau lepton to a lighter mass lepton and a photon have been performed with the entire dataset of (963 +- 7) x 10^6 tau decays collected by the BaBar detector near the Upsilon(4S), Upsilon(3S)…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

We compute the lepton flavour violating couplings of Higgs bosons in the Minimal Supersymmetric Standard Model, and show that they can induce the decays (h,H,A) --> mu tau at non-negligible rates, for large tan(beta) and sizeable smuon-stau…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andrea Brignole , Anna Rossi

We study the supersymmetric model with $D_4 \times Z_2$ lepton flavor symmetry. We evaluate soft supersymmetry breaking terms, i.e. soft slepton masses and A-terms, which are predicted in the $D_4$ flavor model. We consider constraints due…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hajime Ishimori , Tatsuo Kobayashi , Hiroshi Ohki , Yuji Omura , Ryo Takahashi , Morimitsu Tanimoto

We investigate lepton flavor violating decays in a SUSY SO(10) model with symmetric textures recently constructed by us. Unlike the models with lop-sided textures which give rise to a large decay rate for mu -> e gamma, the decay rate we…

High Energy Physics - Phenomenology · Physics 2009-11-10 Mu-Chun Chen , K. T. Mahanthappa

We examine the parameter space region of the inverse seesaw model that is consistent with neutrino oscillation data. We focus on the correlation between the current limits from the search of the $\mu\to e\gamma$ lepton flavor violating…

High Energy Physics - Phenomenology · Physics 2023-08-28 J. C. Garnica , G. Hernández-Tomé , E. Peinado

We study the anatomy and phenomenology of Lepton Flavor Violation (LFV) in the context of Flavored Gauge Mediation (FGM). Within FGM, the messenger sector couples directly to the MSSM matter fields with couplings controlled by the same…

High Energy Physics - Phenomenology · Physics 2014-12-31 Lorenzo Calibbi , Paride Paradisi , Robert Ziegler

We investigate the lepton flavor violation in the framework of the MSSM with right-handed neutrinos taking the large mixing angle MSW solution in the quasi-degenerate and the inverse-hierarchical neutrino masses. We predict the branching…

High Energy Physics - Phenomenology · Physics 2016-09-06 A. Kageyama , S. Kaneko , N. Shimoyama , M. Tanimoto

We investigate the predictions for lepton number violating processes within the minimal theory of neutrino masses based on the spontaneous breaking of local lepton number. In this framework, the symmetry is broken at the low scale, leading…

High Energy Physics - Phenomenology · Physics 2025-11-25 Hridoy Debnath , Pavel Fileviez Perez