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The tau anomalous magnetic moment (a_tau) and electric dipole moment (d_tau) have not yet been observed. The present bounds on their values are of order 10^-2 and 10^-17 e*cm, respectively. We propose to measure a_tau with a precision of…

High Energy Physics - Phenomenology · Physics 2015-06-12 Matteo Fael , Lorenzo Mercolli , Massimo Passera

We present a discussion of model-independent contributions to the EDM of the electron. We focus on those contributions that emerge from a heavy scalar sector that is linearly realized. In particular, we explore the decoupling limit of the…

High Energy Physics - Phenomenology · Physics 2025-10-22 Juan Manuel Dávila , Anirban Karan , Emilie Passemar , Antonio Pich , Luiz Vale Silva

Recent Standard Model predictions for the anomalous magnetic moments of the electron, muon and tau lepton are reviewed and compared to the latest experimental values.

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Passera

We study the lepton electric dipole moments in the split fermion scenario, in the two Higgs doublet model, where the new Higgs scalars are localized around the origin in the extra dimension, with the help of the localizer field. We observe…

High Energy Physics - Phenomenology · Physics 2008-11-26 Erhan Onur Iltan

In this review we discuss physics of the lepton sector, the anomalous dipole moment of muon, the charged lepton-flavor violation, and the electric dipole moments of charged leptons, from viewpoints of the minimal supersymmetric standard…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Hisano

We calculate the rate of the decay $\mu \to e\gamma$ and the electric dipole moment of the electron in the left-right supersymmetric model when the breaking of parity occurs at a considerably large scale. The low-energy flavor violation in…

High Energy Physics - Phenomenology · Physics 2011-09-13 G. Couture , M. Frank , H. Konig , M. Pospelov

Doubly charged excited leptons give rise to interesting signatures for physics beyond the standard model at the present Large Hadron Collider. These exotic states are introduced in extended isospin multiplets which couple to the ordinary…

High Energy Physics - Phenomenology · Physics 2015-07-29 S. Biondini , O. Panella

We discuss and estimate the contributions of the new particles predicted by topcolor assisted technicolor(TC2) models to the muon anomalous magnetic moment $a_{\mu}$. Our results show that the contributions of Pseudo Goldstone bosons are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chongxing Yue , Qingjun Xu , Guoli Liu

The leptons are viewed as composite objects, exhibiting anomalous magnetic moments and anomalous flavor-changing transition moments. The decay \mu \to e \gamma is expected to occur with a branching ratio of the same order as the present…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xavier Calmet

We calculate the effect of magnetic fields on the magnetic dipole moment of leptons up to the quadratic order in the magnetic field, including the QCD contributions. Since the leading contribution, which is linear in the magnetic field,…

High Energy Physics - Phenomenology · Physics 2022-01-17 Gyurin Kim , Tuna Demircik , Deog Ki Hong , Matti Järvinen

It is shown that in the experiments for search of EDM of an electron (atom, molecule) the T-odd magnetic moment induced by an electric field and the T-odd electric dipole moment induced by a magnetic field will be also measured. It is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vladimir Baryshevsky

We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their…

High Energy Physics - Phenomenology · Physics 2021-12-08 Thomas Hambye , Xun-Jie Xu

A fermion can be chiral or vectorlike with respect to a given symmetry, depending on its coupling to the corresponding gauge boson. Vectorlike fermions have a distinct property that their left-handed and right-handed components behave in…

High Energy Physics - Phenomenology · Physics 2026-02-12 Sang Quang Dinh , Hieu Minh Tran

We present a simple algorithm for the calculation of event weights embedding the effects of anomalous electric and magnetic dipole moments in simulation of $e^-e^+\to \tau^-\tau^+ (n\gamma)$ events, and the subsequent decay of the $\tau$…

High Energy Physics - Phenomenology · Physics 2023-01-11 Sw. Banerjee , A. Yu. Korchin , Z. Was

We use the BNL E821 measurement of g - 2, the anomalous magnetic moment of the muon, to normalize, within a supersymmetric GUT framework, constrained MSSM (CMSSM) predictions for processes that violate charged-lepton flavour conservation,…

High Energy Physics - Phenomenology · Physics 2009-09-11 D. F. Carvalho , John Ellis , M. E. Gomez , S. Lola

The Standard Model (SM) is the best description of fundamental particles and their interactions we have to date. From this theory, all phenomena in the macroscopic world (except for gravity) can be explained, and it has successfully…

High Energy Physics - Phenomenology · Physics 2024-07-30 Joan Ruiz-Vidal

The electric dipole moments (EDMs) of neutron-odd nuclei with even protons are systematically evaluated. We first derive the relation between the EDM and the magnetic moment operators by making use of the core polarization scheme. This…

Nuclear Theory · Physics 2015-05-27 Takehisa Fujita , Sachiko Oshima

In the N-B-LSSM, we calculate the electric dipole moments (EDMs) of lepton and neutron at the one loop level via the Mass Insertion Approximation (MIA). In the Standard Model (SM), charge parity (CP) violation originates only from the…

High Energy Physics - Phenomenology · Physics 2026-03-17 Shuang Di , Wei-Hang Zhang , Rong-Zhi Sun , Xing-Xing Dong , Guo-Zhu Ning , Shu-Min Zhao

Neutron electric dipole moment (EDM) due to single quark EDM and to the transition EDM is calculated in the minimal supersymmetric standard model. Assuming that the Cabibbo-Kobayashi-Maskawa matrix at the grand unification scale is the only…

High Energy Physics - Phenomenology · Physics 2010-11-01 T. Inui , Y. Mimura , N. Sakai , T. Sasaki

In the context of general Minimal Supersymmetric Standard Model (MSSM), new sources for Lepton Flavor Violation (LFV) as well as CP-violation appear. We show that in the presence of LFV sources, the electric dipole moment of the electron…

High Energy Physics - Phenomenology · Physics 2008-10-20 Yaser Ayazi , Yasaman Farzan