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A permanent electric dipole moment (EDM) of a fundamental particle violates both parity (P) and time (T) reversal symmetry and combined charge and parity (CP) reversal symmetry if the combined reversal of charge, parity \textit{and} time…

Instrumentation and Detectors · Physics 2018-10-03 Ruediger Picker

In the context of the supersymmetrized seesaw mechanism embedded in the Minimal Supersymmetric Standard Model (MSSM), complex neutrino Yukawa couplings can induce Electric Dipole Moments (EDMs) for the charged leptons, providing an…

High Energy Physics - Phenomenology · Physics 2014-11-18 D. Demir , Y. Farzan

The ACME collaboration has recently reported a new bound on the electric dipole moment (EDM) of the electron, $|d_e|< 1.1 \times 10^{-29}\, {\rm e\cdot cm}$ at 90$\%$ confidence level, reaching an unprecedented accuracy level. This can…

High Energy Physics - Phenomenology · Physics 2021-11-05 Giuliano Panico , Alex Pomarol , Marc Riembau

We revisit the calculation of the electron, neutron, and proton electric dipole moments (EDMs) in the constrained minimal supersymmetric standard model (CMSSM). The relatively large mass of the Higgs boson, $m_H \simeq 125$ GeV coupled with…

High Energy Physics - Phenomenology · Physics 2023-04-19 Kunio Kaneta , Natsumi Nagata , Keith A. Olive , Maxim Pospelov , Liliana Velasco-Sevilla

Parity and time invariance violating ($P,T$-odd) atomic electric dipole moments (EDM) are induced by interaction between atomic electrons and nuclear $P,T$-odd moments which are produced by $P,T$-odd nuclear forces. The nuclear EDM is…

Nuclear Theory · Physics 2009-08-18 V. F. Dmitriev , V. V. Flambaum

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

The electric dipole moment (EDM) of the top quark is calculated in a model with a vector like multiplet which mixes with the third generation in an extension of the MSSM. Such mixings allow for new CP violating phases. Including these new…

High Energy Physics - Phenomenology · Physics 2014-11-21 Tarek Ibrahim , Pran Nath

We study and analyze the electric dipole moments (EDMs) of neutron and heavy quarks c, t in a CP-violating (CPV) supersymmetric U(1) extension of the standard model called $U(1)_X$SSM, whose local gauge group is $U(1)_X\times SU(3)_C\times…

High Energy Physics - Phenomenology · Physics 2021-11-02 Ben Yan , Shu-Min Zhao , Tai-Fu Feng

We calculate the electric dipole moments (EDM) of the neutral Hg(199) atom, neutron and deuteron within a generic R-parity violating SUSY model (RPV SUSY) on the basis of a one-pion exchange model with CP-odd pion-nucleon interactions. We…

High Energy Physics - Phenomenology · Physics 2007-05-23 Amand Faessler , Thomas Gutsche , Sergey Kovalenko , Valery E. Lyubovitskij

We calculate for the first time the electric dipole moment (EDM) of the deuteron, $^3$H, and $^3$He nuclei generated by the one-meson exchange CP-odd nuclear force in the standard model. The effective $|\Delta S| = 1$ four-quark operators…

High Energy Physics - Phenomenology · Physics 2016-02-16 Nodoka Yamanaka , Emiko Hiyama

A status report on the calculations of the contribution of four CP violating operators, the $\Theta$-term, the quark EDM, the chromo EDM and the Weinberg operator to the neutron EDM are presented. At this time, there exit precise physical…

High Energy Physics - Lattice · Physics 2019-04-02 Rajan Gupta

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…

High Energy Physics - Phenomenology · Physics 2015-07-24 Shu-Min Zhao , Tai-Fu Feng , Xi-Jie Zhan , Hai-Bin Zhang , Ben Yan

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

The Electric Dipole Moment of the electron (eEDM) is typically investigated in experiments using paramagnetic molecules. However, the physical observable in these searches consists in a linear combination of CP-violating interactions,…

High Energy Physics - Phenomenology · Physics 2025-03-31 Marco Ardu , Nicola Valori

We propose a new method to calculate electric dipole moments induced by the strong QCD $\theta$-term. The method is based on the gradient flow for gauge fields and is free from renormalization ambiguities. We test our method by computing…

High Energy Physics - Lattice · Physics 2015-12-09 Andrea Shindler , Thomas Luu , Jordy de Vries

Measurements of a permanent neutron electric dipole moment (EDM) potentially probe Beyond-the-Standard Model (BSM) sources of CP-violation. At low energy the CP-violating BSM interactions are parametrized by flavor-conserving CP-violating…

High Energy Physics - Lattice · Physics 2020-09-02 Matthew D. Rizik , Christopher J. Monahan , Andrea Shindler

We propose a method for the lattice QCD computation of nucleon-nucleon low-energy interactions. It consists in simulating QCD in the background of a ''electromagnetic" field whose potential is non-vanishing, but whose field strength is…

Nuclear Theory · Physics 2009-11-10 Paulo F. Bedaque

The existence of a nonzero permanent electric dipole moment (EDM) of the neutron would reveal a new source of CP violation and shed light on the origin of the matter--antimatter asymmetry of the Universe. The sensitivity of current…

High Energy Physics - Experiment · Physics 2021-03-03 Guillaume Pignol , Philipp Schmidt-Wellenburg

By using thermal QCD sum rules to investigate the $\bar{\theta}$ induced neutron electric dipole moment $d_n$, we have examined the behaviour of broken CP symmetry at finite temperature. We find that, below the critical temperature, the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Mohamed Chabab

A fully generic treatment of electric dipole moments (EDMs) is presented in the CP-violating and flavor-conserving weak effective field theory (WET) with five flavors of quarks and three flavors of leptons. We systematically analyze leading…

High Energy Physics - Phenomenology · Physics 2024-06-13 Jacky Kumar , Emanuele Mereghetti
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