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Related papers: Minimal Lepton Flavour Violation and leptogenesis

200 papers

We show that in supersymmetric models with explicit flavor lepton number violation due to soft supersymmetry breaking mass terms there could be detectable flavor lepton number violation in slepton decays. We estimate LHC discovery potential…

High Energy Physics - Phenomenology · Physics 2011-04-15 N. V. Krasnikov

In a supersymmetric extension of the standard model with local gauged baryon and lepton numbers (BLMSSM), there are new sources for lepton flavor violation, because the right-handed neutrinos and new gauginos are introduced. In BLMSSM, we…

High Energy Physics - Phenomenology · Physics 2015-12-23 Shu-Min Zhao , Tai-Fu Feng , Hai-Bin Zhang , Xi-Jie Zhan , Yin-Jie Zhang , Ben Yan

We investigate lepton flavor violation (LFV) in the the singlet-triplet scotogenic model in which neutrinos acquire non-zero masses at the 1-loop level. In contrast to the most popular variant of this setup, the singlet scotogenic model,…

High Energy Physics - Phenomenology · Physics 2016-08-24 Paulina Rocha-Moran , Avelino Vicente

We perform an updated analysis for the one-loop induced lepton flavor violating radiative decays $l_i \to l_j \gamma$ in an extended mirror model. Mixing effects of the neutrinos and charged leptons constructed with a horizontal $A_4$…

High Energy Physics - Phenomenology · Physics 2016-01-27 P. Q. Hung , Trinh Le , Van Que Tran , Tzu-Chiang Yuan

We discuss lepton flavour violating processes induced in the production and decay of heavy right-handed neutrinos at the LHC. Such particles appear in left-right symmetrical extensions of the Standard Model as the messengers of neutrino…

High Energy Physics - Phenomenology · Physics 2013-05-30 S. P. Das , F. F. Deppisch , O. Kittel , J. W. F. Valle

Constrained flavor violation is a recent proposal for predicting the down-quark Yukawa matrix in terms of those for up quarks and charged leptons. We study the viability of CFV with respect to its predictions for the lepton mass ratios,…

High Energy Physics - Phenomenology · Physics 2016-04-13 James M. Cline , Alfonso Diaz-Furlong , Jing Ren

In this work we explore a lepton flavor violation effect induced at one loop for a flavor structure in an extended minimal standard supersymmetric model, considering an ansatz for the trilinear term. In particular we find a finite…

High Energy Physics - Phenomenology · Physics 2016-11-23 R. Espinosa-Castañeda , F. V. Flores-Baez , M. Gómez-Bock , M. Mondragón

In supersymmetric models new sources of lepton flavour violation (LFV) may enhance the rates of charged lepton flavour violating processes, like mu to e gamma, and generate distinct final states at future colliders, e.g. tau mu + jets +…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Kalinowski

We construct a model in which neutrinos and anti-neutrinos acquire the same mass but slightly different energy dispersion relations.Despite CPT violation, spin-statistics is preserved. We find that leptogenesis can be easily explained…

High Energy Physics - Phenomenology · Physics 2011-09-28 Chiu Man Ho

We study thermal leptogenesis in classes of neutrino mass models based on the seesaw mechanism with three right-handed neutrinos and sequential right-handed neutrino dominance. The flavour-dependent Boltzmann equations are solved…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Antusch , S. F. King , A. Riotto

We examine the low-energy signatures of axion-like particles (ALPs) in lepton flavor violating (LFV) processes. By using a dimension-5 effective Lagrangian, we compute the most general ALP contributions to LFV decays of leptons and mesons.…

High Energy Physics - Phenomenology · Physics 2021-01-22 Claudia Cornella , Paride Paradisi , Olcyr Sumensari

We study how lepton flavor violation (LFV) is related to the reactor angle $\theta_{13}$, LHC/dark matter (DM) signal with a successful leptogenesis in a radiative seesaw model through $A_4$ flavor symmetry breaking, in the light of the…

High Energy Physics - Phenomenology · Physics 2010-06-16 Y. H. Ahn

We explore realizations of minimal flavor violation (MFV) for leptons in the simplest seesaw models where the neutrino mass generation mechanism is driven by new fermion singlets (type I) or triplets (type III) and by a scalar triplet (type…

High Energy Physics - Phenomenology · Physics 2015-07-10 Xiao-Gang He , Chao-Jung Lee , Jusak Tandean , Ya-Juan Zheng

We review recent developments in leptogenesis on flavor effects. Their account discloses an important connection between the matter-antimatter asymmetry of the Universe and CP violation at low energies. Besides, they modify the upper bound…

High Energy Physics - Phenomenology · Physics 2008-11-26 Steve Blanchet , Pasquale Di Bari

Recent results from Super Kamiokande suggest $\nu_\mu-\nu_\tau$ mixing and hence lepton flavor violation. In supersymmetric models, this flavor violation may have implications for the pattern of slepton masses and mixings. Possible signals…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Hinchliffe , F. E. Paige

We study charged lepton flavour violation in low-scale seesaw models of minimal supergravity, which realize large neutrino Yukawa couplings thanks to approximate lepton-number symmetries. There are two dominant sources of lepton flavour…

High Energy Physics - Phenomenology · Physics 2013-08-01 Amon Ilakovac , Apostolos Pilaftsis , Luka Popov

We consider sub-TeV scale flavoured resonant leptogenesis within the minimal type-I seesaw scenario with two right-handed singlet neutrinos $N_{1,2}$ forming a pseudo-Dirac pair, concentrating on the case of masses of the pseudo-Dirac pair…

High Energy Physics - Phenomenology · Physics 2021-11-09 A. Granelli , K. Moffat , S. T. Petcov

Charged lepton flavour violation is reappraised in the context of supersymmetric see-saw mechanism. It is pointed out that a non-trivial flavour structure of right-handed neutrinos, whose effect has been thus far less studied, can give rise…

High Energy Physics - Phenomenology · Physics 2014-05-14 Jae-hyeon Park

The model of neutrino mass matrix with minimal texture is now tightly constrained by experiment so that it can yield a prediction for the phase of CP violation. This phase is predicted to lie in the range $\delta_{CP}=0.77\pi - 1.24\pi$. If…

High Energy Physics - Phenomenology · Physics 2017-01-04 Masataka Fukugita , Yuya Kaneta , Yusuke Shimizu , Morimitsu Tanimoto , Tsutomu T. Yanagida

These lecture notes provide an introduction to the theoretical concepts of flavour physics and CP violation, based on a series of lectures given at the ESHEP 2016 summer school. In the first lecture we review the basics of flavour and CP…

High Energy Physics - Phenomenology · Physics 2017-04-20 Monika Blanke