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Related papers: Enhanced mu-e conversion in nuclei in the inverse …

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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 study the nuclear mu-e conversion in the general framework of the effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We…

High Energy Physics - Phenomenology · Physics 2016-09-06 Amand Faessler , Th. Gutsche , Sergey Kovalenko , V. E. Lyubovitskij , Ivan Schmidt

We study nuclear mu-e conversion in the general framework of an effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We…

High Energy Physics - Phenomenology · Physics 2007-05-23 Amand Faessler , Th. Gutsche , Sergey Kovalenko , V. E. Lyubovitskij , Ivan Schmidt , F. Simkovic

We study nuclear mu-e conversion in the general framework of an effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We show…

High Energy Physics - Phenomenology · Physics 2014-11-17 Amand Faessler , Th. Gutsche , Sergey Kovalenko , V. E. Lyubovitskij , Ivan Schmidt , F. Simkovic

We study nuclear muon-electron (mu-e) conversion in the general framework of effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation…

High Energy Physics - Phenomenology · Physics 2009-11-07 T. S. Kosmas , Sergey Kovalenko , Ivan Schmidt

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

We study charged lepton flavour violation in a scenario in which light neutrino masses are generated via the inverse seesaw mechanism with 3+3 gauge singlet fermions, Ni and Sj, i,j=1,2,3. Lepton mixing is predicted with the help of the…

High Energy Physics - Phenomenology · Physics 2025-07-18 F. P. Di Meglio , C. Hagedorn

Using an effective lagrangian description we analyze possible new physics contributions to the most relevant muon number violating processes: $\mu \to e \gamma$ and $\mu$--$e$ conversion in nuclei. We identify a general class of models in…

High Energy Physics - Phenomenology · Physics 2009-10-30 M. Raidal , A. Santamaria

Even tiny lepton flavor violation (LFV) due to some New Physics is able to alter the conditions inside a collapsing supernova core and probably to facilitate the explosion. LFV emerges naturally in a See-Saw type II model of neutrino mass…

High Energy Physics - Phenomenology · Physics 2015-05-20 Oleg Lychkovskiy , Mikhail Vysotsky

The lepton flavour violating charged lepton decays mu to e + gamma and thermal leptogenesis are analysed in the minimal supersymmetric standard model with see-saw mechanism of neutrino mass generation and soft supersymmetry breaking terms…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. T. Petcov , T. Shindou

We discuss a supersymmetric inverse seesaw model in which lepton flavour violating decays can be enhanced either by flavour violating slepton contributions or by the non-unitarity of the charged current mixing matrix. As an example we…

High Energy Physics - Phenomenology · Physics 2009-09-17 F. Deppisch , J. W. F. Valle

In a few years, the COMET experiment at J-PARC and the Mu2e experiment at Fermilab will probe the $\mu-e$ conversion rate in the vicinity of $\mathcal{O}(10^{-17})$ for an Al target with high experimental sensitivity. Within the framework…

High Energy Physics - Phenomenology · Physics 2022-08-16 Ze-Ning Zhang , Hai-Bin Zhang , Xing-Xing Dong , Jin-Lei Yang , Wei Li , Zhong-Jun Yang , Tong-Tong Wang , Tai-Fu Feng

We calculate the predictions for lepton flavour violating (LFV) tau and muon decays, $l_j \to l_i \gamma$, $l_j \to 3 l_i$, $\mu-e$ conversion in nuclei and LFV semileptonic tau decays $\tau \to \mu PP$ with $PP= \pi^+\pi^-, \pi^0\pi^0,…

High Energy Physics - Phenomenology · Physics 2008-10-02 E. Arganda , M. J. Herrero

In this paper we review our main results for Lepton Flavour Violating (LFV) semileptonic tau decays and muon-electron conversion in nuclei within the context of two Constrained SUSY-Seesaw Models, the CMSSM and the NUHM. The relevant…

High Energy Physics - Phenomenology · Physics 2010-11-11 E. Arganda , M. Herrero , J. Portoles , A. Rodriguez-Sanchez , A. Teixeira

Supersymmetry with R-parity violation (RPV) provides an interesting framework for naturally accommodating small neutrino masses. Within this framework, we discuss the lepton-flavour violating (LFV) processes mu -> e gamma, mu -> eee, and mu…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. de Gouvea , S. Lola , K. Tobe

The pursuit for the genuine fundamental description, governing nature at some high-energy scale, must invariably consider the yet-unknown mechanism behind the generation of neutrino mass. Lepton-flavor violating decays $l_\alpha\to…

High Energy Physics - Phenomenology · Physics 2025-04-03 Adrián González-Quiterio , Héctor Novales-Sánchez

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

We analyse an inverse seesaw scenario with 3+3 gauge singlets. The flavour structure is determined by a flavour symmetry, Delta (3 n^2) or Delta (6 n^2), n integer, and CP and their residual groups among charged leptons and the neutral…

High Energy Physics - Phenomenology · Physics 2026-03-06 F. P. Di Meglio , C. Hagedorn

We study lepton-flavor violation (LFV) effects occurring in the $e-\mu$ conversion in nuclei and in the rare radiative decays $\eta(\eta') \to \gamma \mu e$ of the $\eta$ and $\eta'$ mesons with a special impact of the sub-GeV mass vector…

High Energy Physics - Phenomenology · Physics 2026-01-26 Alexey S. Zhevlakov , Sergey Kuleshov , Valery E. Lyubovitskij , Evgenie O. Oleynik

New mu-to-e conversion searches aim to advance limits on charged lepton flavor violation (CLFV) by four orders of magnitude. By considering P and CP selection rules and the structure of possible charge and current densities, we show that…

Nuclear Theory · Physics 2023-04-04 W. C. Haxton , Evan Rule , Ken McElvain , Michael J. Ramsey-Musolf
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