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Related papers: Standard Model prediction for paramagnetic EDMs

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The prevalence of matter over antimatter in the observable universe remains one of the most profound puzzles in modern physics, necessitating sources of charge-parity (CP) symmetry violation beyond those incorporated in the Standard Model.…

High Energy Physics - Experiment · Physics 2026-04-20 Jianyu Zhang

Combining the recently reported electric dipole moment (EDM) of $^{199}$Hg atom due to breaking of parity and time-reversal symmetries with the improved relativistic atomic calculations, precise limits on the tensor-pseudotensor (T-PT)…

High Energy Physics - Phenomenology · Physics 2017-01-25 B. K. Sahoo

Electroweak baryogenesis (EWB) and electric dipole moment (EDM) have close relation with the new physics beyond the standard model (SM), because the SM CP-violating (CPV) interactions are not sufficient to provide the baryon asymmetry of…

High Energy Physics - Phenomenology · Physics 2020-03-23 Jin-Lei Yang , Tai-Fu Feng , Hai-Bin Zhang

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 consider the prospects for measuring distinctive signatures of the CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) in light of the limits on sparticle masses from searches at the LHC. We use the…

High Energy Physics - Phenomenology · Physics 2020-07-07 A. Arbey , J. Ellis , F. Mahmoudi

In the supersymmetric standard model (SSM) the $W$-boson could have a non-vanishing electric dipole moment (EDM) through a one-loop diagram mediated by the charginos and neutralinos. Then the $W$-boson EDM induces the EDMs of the neutron…

High Energy Physics - Phenomenology · Physics 2019-08-17 Tomoko Kadoyoshi , Noriyuki Oshimo

We report on a study of CP Violation in D0-D0bar mixing and Electric Dipole Moments in the framework of supersymmetric alignment models. Both classes of observables are strongly suppressed in the Standard Model and highly sensitive to new…

High Energy Physics - Phenomenology · Physics 2011-05-31 Wolfgang Altmannshofer

Electric dipole moments constitute highly sensitive probes for CP-violating effects beyond the Standard Model. The upper limits obtained in various precision experiments can therefore be used to strongly restrict new physics models.…

High Energy Physics - Phenomenology · Physics 2014-05-27 Martin Jung

The experimental search for CP violation in paramagnetic atomic and molecular systems has made impressive progress in recent years. This has led to strong upper limits on the electron electric dipole moment. The same measurements can also…

High Energy Physics - Phenomenology · Physics 2025-10-24 Heleen Mulder , Rob Timmermans , Jordy de Vries

We investigate the $C\!P$-odd electric dipole moments (EDMs) of spin-1/2 charm baryons considering $C\!P$-violating dimension-6 operators in the Standard Model effective field theory. In the framework of heavy-baryon chiral perturbation…

High Energy Physics - Phenomenology · Physics 2023-06-07 Y. Ünal

We study the electric dipole moments(EDM) of the neutron and the electron in the two-Higgs-doublet model, in the case that $CP$ symmetry is violated maximally in the neutral Higgs sector. We take account of the Weinberg's operator…

High Energy Physics - Phenomenology · Physics 2010-11-01 Takemi HAYASHI , Yoshio Koide , Masahisa Matsuda , Morimitsu Tanimoto , Seiichi Wakaizumi

This is a theoretical review of exploration of new physics beyond the Standard Model (SM) in electric dipole moment (EDM) in elementary particles, atoms, and molecule. EDM is a very important CP violating phenomenon and sensitive to new…

High Energy Physics - Phenomenology · Physics 2015-06-03 Takeshi Fukuyama

We calculate the electric dipole form factor of the neutron in a perturbative chiral quark model, parameterizing CP-violation of generic origin by means of effective electric dipole moments of the constituent quarks and their CP-violating…

High Energy Physics - Phenomenology · Physics 2008-11-26 Claudio Dib , Amand Faessler , Thomas Gutsche , Sergey Kovalenko , Jan Kuckei , Valery E. Lyubovitskij , Kem Pumsa-ard

The CP-violating parameter eps'/eps is estimated in a novel way by including the explicit computation of eps in the ratio as opposed to the usual procedure of taking its value from the experiments. This approach has the advantage of being…

High Energy Physics - Phenomenology · Physics 2011-08-17 Marco Fabbrichesi

We study the electric dipole moment (EDM) and the anomalous magnetic dipole moment (MDM) of the muon in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the contributions from the…

High Energy Physics - Phenomenology · Physics 2009-11-19 Kingman Cheung , Otto C. W. Kong , Jae Sik Lee

We reanalyse the ratio $\varepsilon'/\varepsilon$ in the Standard Model (SM) using most recent hadronic matrix elements from the RBC-UKQCD collaboration in combination with most important NNLO QCD corrections to electroweak penguin…

High Energy Physics - Phenomenology · Physics 2020-08-26 Jason Aebischer , Christoph Bobeth , Andrzej J. Buras

Some regions of parameter space of the minimal supersymmetric standard model (MSSM) with high scale supersymmetry breaking have extreme sensitivity of electroweak symmetry breaking (EWSB) to the top quark mass through renormalisation group…

High Energy Physics - Phenomenology · Physics 2015-06-12 B. C. Allanach , M. A. Parker

We study baryogenesis at the electroweak phase transition of the universe within the framework of the supersymmetric standard model (SSM) based on N=1 supergravity. This model contains a new source of CP violation in the mass-squared…

High Energy Physics - Phenomenology · Physics 2009-10-30 Mayumi Aoki , Akio Sugamoto , Noriyuki Oshimo

Relativistic many-body methods at different levels of approximations are employed to gain insights into the passage of the electron correlations from lower to higher levels in the accurate determination of the electric dipole polarizability…

Atomic Physics · Physics 2015-03-18 Yashpal Singh , B. K. Sahoo

We investigate electric dipole moments (EDMs) in a CP-violating minimal supersymmetric standard model with the Bino-like neutralino dark matter (DM) annihilating through the heavy Higgs funnel. Motivated by the current experimental results,…

High Energy Physics - Phenomenology · Physics 2018-11-12 Tomohiro Abe , Naoya Omoto , Osamu Seto , Tetsuo Shindou