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Related papers: Constraining EDM and MDM lepton dimension five int…

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We study the simplest generic extension of the Standard Model which allows for conventional electroweak baryogenesis, through the addition of dimension six operators in the Higgs sector. At least one such operator is required to be CP-odd,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stephan J. Huber , Maxim Pospelov , Adam Ritz

The Belle II experiment and other ongoing and projected lepton facilities are expected to greatly enhance the sensitivity to the electric dipole moment (EDM) and anomalous magnetic moment ($g-2$) for the tau lepton, making it timely to…

High Energy Physics - Phenomenology · Physics 2026-02-04 Yuichiro Nakai , Yoshihiro Shigekami , Peng Sun , Zhihao Zhang

Precise measurement of the Electric Dipole Moment (EDM) and anomalous magnetic moment ($g$-2) of particles are important tests of Beyond Standard Model (BSM) physics. It is generally believed that the tau lepton couples more strongly to BSM…

High Energy Physics - Phenomenology · Physics 2020-01-08 Xin Chen , Yongcheng Wu

We report the results of our {\it ab initio} relativistic many-body calculations of the electric dipole moment (EDM) $d_A$ arising from the electron-nucleus tensor-pseudotensor (T-PT) interaction, the interaction of the nuclear Schiff…

Atomic Physics · Physics 2015-06-23 B. K. Sahoo , Yashpal Singh , B. P. Das

Electric dipole moments (EDMs) of nucleons and nuclei are actively considered as direct evidence of the CP violation. Calculations of nucleon EDMs on lattice are required to connect the quark- and hadron- level effective CP violating…

High Energy Physics - Lattice · Physics 2020-04-23 Taku Izubuchi , Hiroshi Ohki , Sergey Syritsyn

We investigate the prospects of the search for a nonzero $\tau$ EDM form factor $d_\tau(s)$ in $\tau$ pair production by $e^+ e^-$ collisions at BEPC-II collider energies. We compute the expectation values and covariances of simple and…

High Energy Physics - Phenomenology · Physics 2021-12-15 Werner Bernreuther , Long Chen , Otto Nachtmann

The experimental limit on the neutron electric dipole moment is used as a possible probe of new physics beyond the standard model. Within MSSM we use the current experimental limit on the neutron EDM and possible future improvement as a…

High Energy Physics - Phenomenology · Physics 2015-06-11 Amin Aboubrahim , Tarek Ibrahim , Pran Nath

We show that in supersymmetric models with a gauged flavor symmetry explaining the hierarchy of fermion masses and mixings, the electron, muon, neutron and the deuteron acquire sizable electric dipole moments (EDM) through loop diagrams…

High Energy Physics - Phenomenology · Physics 2009-11-10 K. S. Babu , Ts. Enkhbat

Experiments searching for the electric dipole moment (EDM) of the electron $d_e$ utilise atomic/molecular states with one or more uncompensated electron spins, and these paramagnetic systems have recently achieved remarkable sensitivity to…

High Energy Physics - Phenomenology · Physics 2020-08-12 V. V. Flambaum , M. Pospelov , A. Ritz , Y. V. Stadnik

Using LEP1, SLD and LEP2 data, for tau lepton production, and data from CDF, D0 and LEP2, for W decays into tau leptons, we set model independent limits on non-standard electromagnetic and weak magnetic moments of the tau lepton. The most…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gabriel A. Gonzalez-Sprinberg , Arcadi Santamaria , Jordi Vidal

The weak dipole moments of leptons and quarks, \ie those related to their $Z$--coupling, are reviewed. Standard Model predictions and experimental results may result in a stringent test for both their pointlike structure and also for the…

High Energy Physics - Phenomenology · Physics 2016-08-15 J. Bernabéu , G. A. González-Sprinberg , J. Vidal

In the context of supersymmetric seesaw models of neutrino masses with non-degenerate heavy neutrinos, we show that Dirac Yukawa interactions N^c_i (Y_nu)_{ij} L_j H_2 induce large threshold corrections to the slepton soft masses via…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Junji Hisano , Martti Raidal , Yasuhiro Shimizu

We study the constraints on the CP-violating soft-breaking phases in the minimal supersymmetric standard model using the limits on the chromoelectric dipole moment of the strange quark extracted from the neutron EDM experiment. Our…

High Energy Physics - Phenomenology · Physics 2016-09-06 C. Hamzaoui , M. Pospelov , R. Roiban

We calculate for the first time the electric dipole moment (EDM) of $^{13}$C generated by the isovector CP-odd pion exchange nuclear force in the $\alpha$-cluster model, which describes well the structures of low lying states of the…

Nuclear Theory · Physics 2017-06-28 Nodoka Yamanaka , Taiichi Yamada , Emiko Hiyama , Yasuro Funaki

We examine the muon's electric dipole moment $\dmu$ from a variety of theoretical perspectives. We point out that the reported deviation in the muon's g-2 can be due partially or even entirely to a new physics contribution to the muon's…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

We calculate the electric dipole moments (EDMs) of three-nucleon systems at leading order in pionless effective field theory. The one-body contributions that arise from permanent proton and neutron EDMs and the two-body contributions that…

We report theoretical results of the electric dipole moment (EDM) of $^{210}$Fr which arises from the interaction of the EDM of an electron with the internal electric field in an atom and the scalar-pseudoscalar electron-nucleus…

High Energy Physics - Phenomenology · Physics 2021-02-23 Nanako Shitara , Nodoka Yamanaka , Bijaya Kumar Sahoo , Toshio Watanabe , Bhanu Pratap Das

We investigate contributions to the anomalous magnetic moments of charged leptons in the neutrino-extended Standard Model Effective Field Theory ($\nu$SMEFT). We discuss how $\nu$SMEFT operators can contribute to a lepton's magnetic moment…

High Energy Physics - Phenomenology · Physics 2021-09-24 Vincenzo Cirigliano , Wouter Dekens , Jordy de Vries , Kaori Fuyuto , Emanuele Mereghetti , Richard Ruiz

We derive indirect limits on the charm and bottom quark electric dipole moments (EDMs) from paramagnetic AMO and neutron EDM experiments. The charm and bottom quark EDMs generate $CP$-odd photon-gluon operators and light quark EDMs at the…

High Energy Physics - Phenomenology · Physics 2022-08-10 Yohei Ema , Ting Gao , Maxim Pospelov

Very recently, we proposed an explanation of the discrepancy between the measured anomalous magnetic moment of the muon and the Standard Model (SM) prediction in which the dominant contribution to $(g-2)_\mu$ originates in Kaluza-Klein (KK)…

High Energy Physics - Phenomenology · Physics 2022-03-24 Luis A. Anchordoqui , Ignatios Antoniadis , Xing Huang , Dieter Lüst , François Rondeau , Tomasz R. Taylor
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