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Realistic effective supergravity models have a variety of sources of lepton flavour violation (LFV) which can drastically affect the predictions relative to the scenarios usually considered in the literature based on minimal supergravity…

高能物理 - 唯象学 · 物理学 2009-11-11 J. G. Hayes , S. F. King , I. N. R. Peddie

We explore the phenomenological implications on charged lepton flavor violating (LFV) processes from slepton flavor mixing within the Minimal Supersymmetric Standard Model. We work under the model-independent hypothesis of general flavor…

高能物理 - 唯象学 · 物理学 2013-08-09 M. Arana-Catania , S. Heinemeyer , M. J. Herrero

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…

高能物理 - 唯象学 · 物理学 2011-09-13 Xiao-Jun Bi , Yu-ping Kuang , Yong-Hong An

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,…

高能物理 - 唯象学 · 物理学 2014-11-18 K. S. Babu , Jogesh C. Pati , Parul Rastogi

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…

高能物理 - 唯象学 · 物理学 2009-11-07 Seungwon Baek , Toru Goto , Yasuhiro Okada , Ken-ichi Okumura

We analyze lepton flavour violating transitions, leptonic magnetic dipole moments (MDMs) and electric dipole moments (EDMs) in a class of models characterized by the flavour symmetry A4 x Z3 x U(1)_{FN}, whose choice is motivated by the…

高能物理 - 唯象学 · 物理学 2008-12-18 Ferruccio Feruglio , Claudia Hagedorn , Yin Lin , Luca Merlo

We consider lepton flavor violations (LFV) mediated by photino as a result of the nondiagonal slepton mass matrices in general supersymmetric models. Using the experimental upper bounds on l \to l' + gamma and mu^- + Ti \to e^- + Ti as…

高能物理 - 唯象学 · 物理学 2009-10-31 Yeong Gyun Kim , Pyungwon Ko , Jae Sik Lee , Kang Young Lee

We establish a correspondence between those Feynman diagrams in the MSSM which give supersymmetric contributions to the muon anomalous magnetic moment and those which contribute to the flavor violating processes $\mu --> e\gamma$ and $\tau…

高能物理 - 唯象学 · 物理学 2009-11-07 Z. Chacko , Graham D. Kribs

In supersymmetric extensions of the Standard Model, the lepton flavour violation (LFV) is closely related to the structure of slepton masses and mixing. Allowing for the most general flavour structure of the slepton sector, consistent with…

高能物理 - 唯象学 · 物理学 2007-05-23 Jan Kalinowski

We analyze neutrino masses and Lepton Flavor Violation (LFV) in charged leptons with a minimal ansatz about the breaking of the U(3)^5 flavor symmetry, consistent with the U(2)^3 breaking pattern of quark Yukawa couplings, in the context of…

高能物理 - 唯象学 · 物理学 2015-06-04 Gianluca Blankenburg , Gino Isidori , Joel Jones-Perez

In recent years, exciting (indirect) hints for physics beyond the Standard Model (SM) have been accumulated. In particular, semi-leptonic $B$ decays show deviations from the SM predictions, which, due to the ratios $R(K^{(*)})$ and…

高能物理 - 唯象学 · 物理学 2022-04-27 Andreas Crivellin , Joaquim Matias

Lepton flavor violating processes are obtained from the mixing between ordinary leptons and vectorlike SU(2)_L doublet leptons which may originate in E_6. The effects of this lepton mixing are, however, suppressed naturally by the hierarchy…

高能物理 - 唯象学 · 物理学 2009-10-31 Ryuichiro Kitano , Katsuji Yamamoto

We present here two concrete examples of models where a sub-TeV scale breaking of their respective $\mathcal{T}_{13}$ and $A_5$ flavor symmetries is able to account for the recently observed discrepancy in the muon anomalous magnetic…

高能物理 - 唯象学 · 物理学 2022-02-24 M. L. López-Ibáñez , Aurora Melis , M. Jay Pérez , Moinul Hossain Rahat , Oscar Vives

Lepton Flavor Violating (LFV) processes are clear signals of physics beyond the Standard Model. We investigate the possibility of measuring this kind of processes at present and foreseeable future muon-electron colliders, taking into…

高能物理 - 唯象学 · 物理学 2020-12-15 Fabio Bossi , Paolo Ciafaloni

We propose a new model with flavor-dependent gauged $U(1)_{B-L_1}\times U(1)_{B-L_{2}-L_{3}}$ symmetry in addition to the flavor-blind one in the standard model. The model contains three right-handed neutrinos to cancel gauge anomalies and…

高能物理 - 唯象学 · 物理学 2018-12-05 Linping Mu , Hiroshi Okada , Chao-Qiang Geng

In the recently proposed minimal supersymmetric SO(10) model, the neutrino Dirac Yukawa coupling matrix, together with all the other fermion mass matrices, is completely determined once free parameters in the model are appropriately fixed…

高能物理 - 唯象学 · 物理学 2011-07-18 Takeshi Fukuyama , Tatsuru Kikuchi , Nobuchika Okada

A lepton-flavor violating (LFV) Z' boson may mimic some of the phenomena usually attributed to supersymmetric theories. Using a conservative model of LFV Z' bosons, the recent BNL E821 muon g-2 deviation allows for a LFV Z' interpretation…

高能物理 - 唯象学 · 物理学 2009-11-07 Brandon Murakami

U(1)-family symmetries have led to successful predictions of the fermion mass spectrum and the mixing angles of the hadronic sector. In the context of the supersymmetric unified theories, they further imply a non-trivial mass structure for…

高能物理 - 唯象学 · 物理学 2007-05-23 Mario E. Gomez

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…

高能物理 - 唯象学 · 物理学 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

Measurement of Lepton-Flavor Violation (LFV) in the minimal SUSY Standard Model (MSSM) at Large Hadron Collider (LHC) is studied based on a realistic simulation. We consider the LFV decay of the second-lightest neutralino, $\tilde{\chi}^0_2…

高能物理 - 唯象学 · 物理学 2008-11-26 Junji Hisano , Ryuichiro Kitano , Mihoko M. Nojiri
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