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The recent lattice QCD calculations of the neutron and proton electric dipole moments (EDMs) and the CP-violating $\pi {\rm NN}$ coupling constant due to the $\theta$ term are reviewed. Progress towards nucleon EDM calculations, including…

High Energy Physics - Lattice · Physics 2024-11-26 Keh-Fei Liu

The electric dipole moment (EDM) is an excellent probe of new physics beyond the standard model of particle physics. The EDM of light nuclei is particularly interesting due to the high sensitivity to the hadron level CP violation. In this…

Nuclear Theory · Physics 2020-01-08 Nodoka Yamanaka

The minimal supersymmetric extension of the standard model (MSSM) is extended to the $U(1)_X$SSM, whose local gauge group is $SU(3)_C \times SU(2)_L \times U(1)_Y \times U(1)_X$. To obtain the $U(1)_X$SSM, we add the new superfields to the…

High Energy Physics - Phenomenology · Physics 2022-05-10 Lu-Hao Su , Dan He , Xing-Xing Dong , Tai-Fu Feng , Shu-Min Zhao

In the framework of the MSSM extension with local gauged baryon and lepton numbers (BLMSSM), we calculate the muon anomalous magnetic dipole moment (MDM) and lepton $(e, \mu, \tau)$ electric dipole moment (EDM), and discuss how the muon MDM…

High Energy Physics - Phenomenology · Physics 2023-03-07 Xi Wang , Shu-Min Zhao , Xin-Xin Long , Yi-Tong Wang , Tong-Tong Wang , Hai-Bin Zhang , Tai-Fu Feng , Rong-Xiang Zhang

We analyze two-loop gluino corrections to the neutron electric dipole moment (EDM) in the minimal supersymmetry extension of the standard model (MSSM). The dependence of two-loop corrections on the relevant CP violating phases differs from…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tai-Fu Feng , Xue-Qian Li , Jukka Maalampi , Xinmin Zhang

We study the minimal version of the supersymmetric standard model with spontaneous CP breaking. In this model, the KM matrix is real and contributions to $\varepsilon$ arise from box diagrams involving squarks. We analyze the region of the…

High Energy Physics - Phenomenology · Physics 2010-11-01 Alex Pomarol

Electric dipole moments (EDMs) of nucleons and nuclei, which are sought as evidence of CP violation, require lattice calculations to connect constraints from experiments to limits on the strong CP violation within QCD or CP violation…

High Energy Physics - Lattice · Physics 2019-01-18 S. Syritsyn , T. Izubuchi , H. Ohki

A permanent electric dipole moment (EDM) of a particle or system is a separation of charge along its angular-momentum axis and is a direct signal of T-violation and, assuming CPT symmetry, CP violation. For over sixty years EDMs have been…

Atomic Physics · Physics 2019-02-08 Timothy Chupp , Peter Fierlinger , Michael Ramsey-Musolf , Jaideep Singh

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

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

In this paper we present the complete expressions of the lepton and neutron electric dipole moments (EDMs) in the Standard Model Effective Field Theory (SMEFT), up to 1-loop and dimension-6 level and including both RG running contributions…

High Energy Physics - Phenomenology · Physics 2023-01-16 Jonathan Kley , Tobias Theil , Elena Venturini , Andreas Weiler

Contribution of the strong CP angle, $\bar\theta$, to the Wilson Coefficients of electron and muon electric dipole moment (EDM) operators are discussed. Previously, $\bar\theta$ contribution to the electron EDM operator was calculated by…

High Energy Physics - Phenomenology · Physics 2018-01-04 Diptimoy Ghosh , Ryosuke Sato

The question of CP violating phases and electric dipole moments (EDMs)for the electron ($d_e$) and the neutron ($d_n$) for supergravity models with nonuniversal soft breaking is considered for models with a light ($\stackrel{<}{\sim}$1 TeV)…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Accomando , R. Arnowitt , B. Dutta

The CP violating Weinberg operator (or the gluon chromo-electric dipole moment) is generated in many candidates of new physics beyond the standard model, and it contributes to observables such as the electric dipole moments (EDM) of the…

Nuclear Theory · Physics 2023-01-18 Nodoka Yamanaka

Electric dipole moments (EDMs) of elementary particles and atoms probe violations of T and P symmetries and consequently of CP if CPT is an exact symmetry. We point out that EDMs can also serve as sensitive probes of CPT-odd, CP-even…

High Energy Physics - Phenomenology · Physics 2009-01-09 Pavel Bolokhov , Maxim Pospelov , Michael Romalis

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

Triggered by experimental prospects to measure electromagnetic dipole moments of baryons containing a bottom quark, we calculate the CP-odd electric dipole moments (EDMs) of spin-1/2 single-bottom baryons. We consider CP-violating…

High Energy Physics - Phenomenology · Physics 2022-04-12 Y. Ünal , D. Severt , J. de Vries , C. Hanhart , Ulf-G. Meißner

We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the $\eta(\eta')$ meson to the neutron. Using this result, we derive constraints on the…

The Higgs sector which is extended from the standard model could generally become an origin of CP violation. In the model with two doublet and one triplet Higgs fields on SU(2) symmetry, we study the electric dipole moment (EDM) of the…

High Energy Physics - Phenomenology · Physics 2019-05-07 Noriyuki Oshimo

In any finite system, the presence of a non-zero permanent electric dipole moment (EDM) would indicate CP violation beyond the small violation predicted in the Standard Model. Here, we use the ab initio no-core shell model (NCSM) framework…

Nuclear Theory · Physics 2021-08-23 Paul Froese , Petr Navratil