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Related papers: SUSY dark matter and lepton flavor violation

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We study the impact of neutrino masses and mixings on LFV processes within the context of the supersymmetric seesaw scenario, where the CMSSM is extended by three right-handed (s)neutrinos. A hierarchical spectrum is considered for both…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Antusch , E. Arganda , M. J. Herrero , A. M. Teixeira

We show that the predictions for lepton flavor violating decays, in the case of quasi-degenerate neutrinos, change drastically when we include in the computation the high-energy phases present in the matrix of neutrino Yukawa couplings.

High Energy Physics - Phenomenology · Physics 2007-05-23 Carlos E. Yaguna

We discuss lepton flavor violation (LFV) in the context of SUSY breaking when the first-two generation sleptons are heavy. When the first-two generation sleptons are $\mathcal{O}(5 {\rm TeV})$ and have small mass-splittings, we find that a…

High Energy Physics - Phenomenology · Physics 2009-11-12 Daniel Sword

In light of recent results from the LHC, MEG and neutrino experiments, we revisit the issue of charged lepton flavour violation (LFV) in supersymmetric theories with massive neutrinos, where flavour-violating soft supersymmetry-breaking…

High Energy Physics - Phenomenology · Physics 2013-10-31 Mirco Cannoni , John Ellis , Mario E. Gomez , Smaragda Lola

In supersymmetric see-saw model, the large flavor mixings of sleptons induce the lepton flavor violating (LFV) interactions $\ell_I \bar\ell_J V$ ($V=\gamma, Z$), which give rise to various LFV processes. In this work we examine the induced…

High Energy Physics - Phenomenology · Physics 2009-11-10 Junjie Cao , Zhaohua Xiong , Jin Min Yang

Weak scale supersymmetry provides elegant solutions to many of the problems of the standard model, but it also generically gives rise to excessive flavor and CP violation. We show that if the mechanism that suppresses the Yukawa couplings…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yasunori Nomura , Michele Papucci , Daniel Stolarski

Motivated by the recent anomalies in $b\rightarrow s$ transitions that emerged at LHCb, we consider a model with an $L_\mu - L_\tau$ gauge symmetry and additional vector-like fermions. We find that by introducing supersymmetry the model can…

High Energy Physics - Phenomenology · Physics 2018-10-16 Luc Darmé , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo

We perform a detailed analysis of lepton flavour violation (LFV) within minimal see-saw type extensions of the Standard Model (SM), which give a viable mechanism of neutrino mass generation and provide new particle content at the…

High Energy Physics - Phenomenology · Physics 2015-06-05 D. N. Dinh , A. Ibarra , E. Molinaro , S. T. Petcov

We present the first complete calculation of flavour violating lepton decays taking into account all supersymmetric (SUSY) and non-SUSY contributions in the context of the supersymmetric inverse seesaw, a specific SUSY low-scale seesaw…

High Energy Physics - Phenomenology · Physics 2014-10-24 C. Weiland

We study neutrino masses in the framework of the supersymmetric inverse seesaw model. Different from the non-supersymmetric version a minimal realization with just one pair of singlets is sufficient to explain all neutrino data. We compute…

High Energy Physics - Phenomenology · Physics 2010-02-08 M. Hirsch , T. Kernreiter , J. C. Romao , Albert Villanova del Moral

New heavy neutral leptons lead to non-unitary effects in models for neutrino masses. Such effects could represent a sign of new physics beyond the Standard Model, leading to observable deviations in neutrino oscillation experiments, lepton…

High Energy Physics - Phenomenology · Physics 2024-08-26 Jesús Miguel Celestino-Ramírez , G. Hernández-Tomé , O. G. Miranda , Eduardo Peinado

We give a thorough analysis of the correlation between the muon anomalous magnetic moment and the radiative lepton flavor violating (LFV) processes within the minimal supersymmetric standard model. We find that in the case when the slepton…

High Energy Physics - Phenomenology · Physics 2011-09-13 Xiao-Jun Bi , Yu-ping Kuang , Yong-Hong An

We analyze the lepton flavor universality violation (LFV) in process $b\to s \ell^+\ell^-$ in an R-parity violating supersymmetric (RPV-SUSY) scenario. The most recent update on $\rk$ from the LHCb collaboration suggests approximately…

High Energy Physics - Phenomenology · Physics 2023-01-18 Debjyoti Bardhan , Diptimoy Ghosh , Divya Sachdeva

We present a model for Lepton Flavor Violating (LFV) neutral current non-standard interactions of neutrinos with matter fields parameterized by $\epsilon_{\alpha \beta}^f$ with $\alpha \ne \beta$. Here, unlike the previous models, the…

High Energy Physics - Phenomenology · Physics 2020-04-29 Yasaman Farzan

We study the \mu \to e \gamma decay in the Z_3-invariant next-to-minimal supersymmetric (SUSY) Standard Model (NMSSM) with superheavy right-handed neutrinos. We assume that the soft SUSY breaking parameters are generated at the GUT scale,…

High Energy Physics - Phenomenology · Physics 2015-05-27 Keisuke Nakamura , Daisuke Nomura

The existence of an anomalous U(1) symmetry is shown to play a crucial role in the supersymmetric radiative seesaw model for neutrino masses. It explains the smallness of some couplings related to neutrino mass generation in a favorable way…

High Energy Physics - Phenomenology · Physics 2011-03-28 Daijiro Suematsu , Takashi Toma

We investigate the lepton flavor violating (LFV) rare decays in the supersymmetric minimal seesaw model in which the Frampton-Glashow-Yanagida ansatz is incorporated. The branching ratio of $\mu \to e \gamma$ is calculated in terms of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Wan-lei Guo

We analyze the non-unitary effects in the linear seesaw mechanism using the current constraints and future sensitivity of the charged Lepton Flavor Violation (cLFV) processes. We perform a random scan confronting the non-unitary parameters…

High Energy Physics - Phenomenology · Physics 2025-01-15 Jesus Miguel Celestino-Ramirez , O. G. Miranda

The neutrino mass and dark matter (DM) problems are addressed in a Standard Model extension where the type-II seesaw and scotogenic mechanisms coexist. The model features a flavour $\mathcal{Z}_8$ discrete symmetry which is broken down to a…

High Energy Physics - Phenomenology · Physics 2022-08-24 D. M. Barreiros , H. B. Camara , F. R. Joaquim

Neutrino oscillation experiments suggest existence of new flavor-violating interactions in high energy scale. It may be possible to probe them by the flavor- and CP-violating processes in leptons and hadrons in the supersymmetric (SUSY)…

High Energy Physics - Phenomenology · Physics 2009-11-10 Junji Hisano
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