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Flavor symmetric model is one of the attractive Beyond Standard Models (BSMs) to reveal the flavor structure of the Standard Model (SM). A lot of efforts have been put into the model building and we find many kinds of flavor symmetries and…

高能物理 - 唯象学 · 物理学 2015-05-29 Tatsuo Kobayashi , Yuji Omura , Fumihiro Takayama , Daiki Yasuhara

We consider an abelian extension of the Standard Model (SM) comprising a new gauge group $U(1)^\prime$, with the neutral gauge boson $Z^\prime$ having flavour violating couplings to quarks and leptons. The fermion content is the same as in…

高能物理 - 唯象学 · 物理学 2025-11-27 Pietro Colangelo , Fulvia De Fazio , Davide Milillo

We study the lepton flavor violation in the supersymmetric seesaw model taking into account recent experimental improvements, especially for the Higgs boson mass measurement, direct searches of superpartners and the rare decay of B_s -> mu+…

高能物理 - 唯象学 · 物理学 2015-03-05 Toru Goto , Yasuhiro Okada , Tetsuo Shindou , Minoru Tanaka , Ryoutaro Watanabe

In supersymmetric extensions of the Standard Model, the Yukawa and/or mass terms of the heavy neutrinos can generate lepton flavour violating slepton mass terms. These new supersymmetric sources of lepton flavour violation may both enhance…

高能物理 - 唯象学 · 物理学 2007-05-23 F. Deppisch , J. Kalinowski , H. Päs , A. Redelbach , R. Rückl

We study a new supersymmetric mechanism for lepton flavour violation in muon and tau decays and muon -> e conversion in nuclei, within a minimal extension of the MSSM with low-mass heavy singlet neutrinos and sneutrinos. We find that the…

高能物理 - 唯象学 · 物理学 2015-05-13 Amon Ilakovac , Apostolos Pilaftsis

The $\mu\nu$SSM, one of supersymmetric extensions of the Standard Model, introduces three right-handed neutrino superfields to solve the $\mu$ problem and violates lepton number. Within framwork of the $\mu\nu$SSM, we investigate the lepton…

高能物理 - 唯象学 · 物理学 2014-08-26 Hai-Bin Zhang , Tai-Fu Feng , Shu-Min Zhao , Fei Sun

We study a new supersymmetric mechanism for lepton flavor violation in a minimal extension of the MSSM with low-mass heavy singlet neutrinos, which is fully independent of the flavor structure of the soft SUSY breaking sector. We find that…

高能物理 - 唯象学 · 物理学 2015-05-14 Amon Ilakovac , Apostolos Pilaftsis

Lepton flavor violation (LFV) represents a clear new physics (NP) signal beyond the standard model (SM). In this paper, we study LFV decays $Z\rightarrow l^{\pm}_{i}l^{\mp}_{j}$ in the B-L Supersymmetric Standard Model(B-LSSM). We calculate…

高能物理 - 唯象学 · 物理学 2024-06-06 Jia-Peng Huo , Xing-Xing Dong , Jiao Ma , Shu-Min Zhao , Cai Guo , Hai-Bin Zhang , Jin-Lei Yang , Tai-Fu Feng

Here we update the predictions for lepton flavour violating tau and muon decays, $l_j \to l_i \gamma$, $l_j \to 3 l_i$, and $\mu-e$ conversion in nuclei. We work within a SUSY-seesaw context where the particle content of the Minimal…

高能物理 - 唯象学 · 物理学 2007-10-23 E. Arganda , M. J. Herrero

We study lepton flavor observables in the Standard Model (SM) extended with all dimension-$6$ operators which are invariant under the SM gauge group. We calculate the complete one-loop predictions to the radiative lepton decays $\mu\to…

高能物理 - 唯象学 · 物理学 2015-06-18 Andreas Crivellin , Saereh Najjari , Janusz Rosiek

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,…

高能物理 - 唯象学 · 物理学 2008-10-02 E. Arganda , M. J. Herrero

Taking the supersymmetric inverse seesaw mechanism as the explanation for neutrino oscillation data, we investigate charged lepton flavor violation in radiative and 3-body lepton decays as well as in neutrinoless $\mu-e$ conversion in…

高能物理 - 唯象学 · 物理学 2014-11-18 A. Abada , M. E. Krauss , W. Porod , F. Staub , A. Vicente , C. Weiland

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

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) enlarged with three right handed neutrinos and their supersymmetric partners, and with the neutrino masses…

高能物理 - 唯象学 · 物理学 2007-05-23 E. Arganda , A. M. Curiel , M. J. Herrero , D. Temes

We carry out an exhaustive analysis of lepton flavor violating processes within the Simplest Little Higgs model. Its discovery could be expected from either $\mu\to e$ conversion in nuclei, $\mu\to e\gamma$ or $\mu\to3e$ decays. Then, the…

高能物理 - 唯象学 · 物理学 2022-09-26 Enrique Ramirez , Pablo Roig

Many extensions of the leptonic sector of the Minimal Supersymmetric Standard Model (MSSM) are known, most of them leading to observable flavor violating effects. It has been recently shown that the 1-loop contributions to lepton flavor…

高能物理 - 唯象学 · 物理学 2012-07-09 H. K. Dreiner , K. Nickel , F. Staub , A. Vicente

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) being embeded in a mSUGRA scenario that is enlarged with three right handed neutrinos and their supersymmetric…

高能物理 - 唯象学 · 物理学 2007-05-23 E. Arganda , A. M. Curiel , M. J. Herrero , D. Temes

Right-handed neutrinos in supersymmetric models can act as the source of lepton flavor violation (LFV). We present experimental implications of lepton flavor-violating processes within a supersymmetric type-I seesaw framework in the…

高能物理 - 唯象学 · 物理学 2019-10-23 Howard Baer , Vernon Barger , Hasan Serce

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…

高能物理 - 唯象学 · 物理学 2011-03-23 J. K. Parry

We study the implications of the global $U(1)_R$ symmetry present in minimal lepton flavor violating implementations of the seesaw mechanism for neutrino masses. Our discussion is done in the context of explicit minimal type-I seesaw…

高能物理 - 唯象学 · 物理学 2012-09-14 Audrey Degée