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相关论文: Charged lepton flavor violation in extended BLMSSM

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Searches for lepton flavor violation (LFV) stand at the forefront of experimental particle physics research, offering a sensitive probe to many scenarios of physics beyond the Standard Model. The high proton-proton collision energy and…

高能物理 - 实验 · 物理学 2024-03-20 Jian Wang

Supersymmetric theories generally have new flavor violation sources in the squark and slepton mass matrices. If significant lepton flavor violation exists, selectron and smuon should be nearly degenerate. This leads to the phenomenon of…

高能物理 - 唯象学 · 物理学 2007-05-23 Hsin-Chia Cheng

We study current experimental bounds on charged lepton flavor violating (CLFV) $\mu$-$e$ interactions in the model-independent framework of the Standard Model Effective Field Theory (SMEFT). Assuming a generic flavor structure in the quark…

高能物理 - 唯象学 · 物理学 2025-12-03 Filippo Delzanno , Kaori Fuyuto , Sergi Gonzàlez-Solís , Emanuele Mereghetti

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

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

Taking into account the constraints on the lepton flavor violation (LFV) couplings of the Standard Model (SM) Higgs boson H with leptons from low energy experiments and the recent Compact Muon Solenoid experiment results, we investigate…

高能物理 - 唯象学 · 物理学 2015-06-09 Chong-Xing Yue , Cong Pang , Yu-Chen Guo

Due to the smallness of the lepton Yukawa couplings, higher-dimensional operators can give a significant contribution to the lepton masses. In this case, the lepton mass matrix and the matrix of lepton-Higgs couplings are misaligned leading…

高能物理 - 唯象学 · 物理学 2012-01-04 Andreas Goudelis , Oleg Lebedev , Jae-hyeon Park

We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precision searches for charged lepton-flavor violation (LFV) are…

高能物理 - 唯象学 · 物理学 2026-01-28 Pouya Asadi , Hengameh Bagherian , Katherine Fraser , Samuel Homiller , Qianshu Lu

Within the context of heavy neutral lepton (HNL) extensions of the Standard Model, we compute the cross-sections for $\mu^+ e^-\to \ell_\alpha^+\ell_\beta^-$ scattering, as well as several angular observables. In particular, we investigate…

高能物理 - 唯象学 · 物理学 2025-02-26 J. Kriewald , E. Pinsard , A. M. Teixeira

Till today lepton flavor violation has not been observed in processes involving charged leptons. Hence, a search for it is under hot pursuit both in theories and experiments. In our current work, we investigate the rates of rare decay…

高能物理 - 唯象学 · 物理学 2020-11-02 Devidutta Gahan , Ng. K. Francis

We study lepton flavor violating (LFV) decays $B^0\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$ ($B^0\rightarrow e{\mu}$, $B^0\rightarrow e{\tau}$ and $B^0\rightarrow {\mu}{\tau}$) in the $U(1)_X$SSM (SSM is acronym for the supersymmetric standard…

高能物理 - 唯象学 · 物理学 2024-08-27 Yi-Tong Wang , Jiao Ma , Xing-Yu Han , Xin-Xin Long , Tong-Tong Wang , Hai-Bin Zhang , Shu-Min Zhao

In this work, we study the charged lepton flavor violating (cLFV) decays $\tau-> \mu\gamma$, $\tau-> 3\mu$ and $Z->\mu\tau$ in the framework of the Supersymmetric economical 3-3-1 model. Analytic formulas for branching ratios (BR) of these…

高能物理 - 唯象学 · 物理学 2013-05-06 L. T. Hue , D. T. Huong , H. N. Long

In the supersymmetric model with local gauged baryon and lepton numbers(BLMSSM), the CP violating effects are considered to study the lepton electric dipole moment(EDM). The CP violating phases in BLMSSM are more than those in the standard…

高能物理 - 唯象学 · 物理学 2015-07-24 Shu-Min Zhao , Tai-Fu Feng , Xi-Jie Zhan , Hai-Bin Zhang , Ben Yan

We study lepton flavor violating (LFV) $B$ decays in a general two Higgs doublet model with sub-TeV exotic scalars. Two different parameter spaces are explored: one dominated by extra top Yukawa coupling $\rho_{tt}$, the other by LFV…

高能物理 - 唯象学 · 物理学 2023-05-24 Wei-Shu Hou , Girish Kumar , Sven Teunissen

The search for lepton flavour violation in charged lepton decays is highly sensitive to physics beyond the Standard Model. Among the possible processes, $\mu$-decays are considered to have the largest discovery potential in most of the…

高能物理 - 实验 · 物理学 2019-06-26 Luca Galli

The observation of lepton flavour violation (LFV) in the charged lepton sector would be an unambiguous sign of physics beyond the Standard Model (BSM), and thus, it is the channel of choice for many BSM searches. LFV searches in muon decays…

高能物理 - 实验 · 物理学 2023-08-23 Ann-Kathrin Perrevoort

In supersymmetric scenarios, the seesaw mechanism involving heavy right-handed neutrinos implies sizable lepton flavor violation (LFV) in the slepton sector. We discuss the potential of detecting LFV processes at the LHC in mSUGRA+seesaw…

高能物理 - 唯象学 · 物理学 2007-10-15 Frank Deppisch

I discuss theoretical and phenomenological aspects of flavour violation in charged lepton transitions. This includes minimal extensions of the Standard Model within effective-theory approaches, as well as an incomplete selection of concrete…

高能物理 - 唯象学 · 物理学 2011-05-12 Thorsten Feldmann

Neutrino masses and mixings have important implications for models of fermion masses, and, most directly, for the charged lepton sector. We consider supersymmetric Abelian flavor models, where neutrino mass parameters are related to those…

高能物理 - 唯象学 · 物理学 2009-10-31 Jonathan L. Feng , Yosef Nir , Yael Shadmi

The fundamental description of nature, beyond the Standard Model (SM), may include heavy neutrinos that mix and thus allow processes in which lepton flavor is not preserved. We investigate the impact of charged currents that couple heavy…

高能物理 - 唯象学 · 物理学 2018-07-24 H. Novales-Sánchez , M. Salinas , J. J. Toscano