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In the presence of P,T-violating interactions, the exchange of axion-like particles between electrons and nucleons in atoms and molecules induces electric dipole moments (EDMs) of atoms and molecules. We perform calculations of such…

原子物理 · 物理学 2020-09-21 Y. V. Stadnik , V. A. Dzuba , V. V. Flambaum

The effects induced by the time-reversal ($\mathcal{T}$) and spatial parity ($\mathcal{P}$) violating electron-nucleus and electron-electron interactions mediated by the axion-like particles (ALPs) in the BaF molecule were estimated.…

原子物理 · 物理学 2024-06-18 Sergey D. Prosnyak , Leonid V. Skripnikov

The exchange of an axion-like particle between atomic electrons and the nucleus may induce electric dipole moments (EDMs) of atoms and molecules. This interaction is described by a parity- and time-reversal-invariance-violating potential…

原子物理 · 物理学 2018-09-14 V. A. Dzuba , V. V. Flambaum , I. B. Samsonov , Y. V. Stadnik

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…

高能物理 - 唯象学 · 物理学 2025-10-24 Heleen Mulder , Rob Timmermans , Jordy de Vries

The combined all-electron and two-step approach is applied to calculate the molecular parameters which are required to interpret the ongoing experiment to search for the effects of manifestation of the T,P-odd fundamental interactions in…

原子物理 · 物理学 2017-07-14 L. V. Skripnikov

Experiments with paramagnetic ground or metastable excited states of molecules (ThO, HfF$^+$, YbF, YbOH, BaF, PbO, etc.) provide strong constraints on electron electric dipole moment (EDM) and coupling constant $C_{SP}$ of contact…

高能物理 - 唯象学 · 物理学 2020-10-28 V. V. Flambaum , I. B. Samsonov , H. B. Tran Tan

We propose methods and present calculations that can be used to search for evidence of cosmic fields by investigating the parity-violating effects, including parity nonconservation amplitudes and electric dipole moments, that they induce in…

高能物理 - 唯象学 · 物理学 2014-11-13 B. M. Roberts , Y. V. Stadnik , V. A. Dzuba , V. V. Flambaum , N. Leefer , D. Budker

We use our recent electric dipole moment (EDM) measurement data to constrain the possibility that the HfF$^+$ EDM oscillates in time due to interactions with candidate dark matter axion-like particles (ALPs). We employ a Bayesian analysis…

The impact of axion-like particles (ALPs) on the search of permanent electric dipole moments (EDMs) of molecules, atoms, nuclei and nucleons is systematically investigated. We classify first the full set of CP-violating Jarlskog invariants…

高能物理 - 唯象学 · 物理学 2021-12-07 Luca Di Luzio , Ramona Gröber , Paride Paradisi

The high effective electric field ($E_\mathrm{eff}$) experienced by the unpaired electron in an atom or a molecule is one of the key ingredients in the success of electron electric dipole moment (eEDM) experiment and its precise calculation…

原子物理 · 物理学 2016-03-28 Sudip Sasmal , Himadri Pathak , Malaya K. Nayak , Nayana Vaval , Sourav Pal

We employ the $Z$-vector method in the four-component relativistic coupled-cluster framework to calculate the parity (${\mathcal{P}}$) and time-reversal (${\mathcal{T}}$) symmetry violating scalar-pseudoscalar (S-PS) nucleus-electron…

原子物理 · 物理学 2019-03-27 Kaushik Talukdar , Malaya K. Nayak , Nayana Vaval , Sourav Pal

We report the results of theoretical investigation of electronic structure of ThF$^+$ cation which is one of the most interesting systems to search for the electron electric dipole moment (eEDM) [H. Loh, K.C. Cossel, M.C. Grau, K.-K. Ni,…

原子物理 · 物理学 2015-05-01 L. V. Skripnikov , A. V. Titov

Searches for axion-like particles (ALPs) with masses in the GeV range are a central objective of present and future Intensity Frontier experiments. Interpreting these searches demands a reliable description of ALP production in hadronic…

高能物理 - 唯象学 · 物理学 2026-02-04 Maksym Ovchynnikov , Andrii Zaporozhchenko

We show that the present experimental limits on electron-nucleon interactions that violate both parity and time reversal invariance provide new stringent bounds on the imaginary parts of some of the products of the R-parity violating…

高能物理 - 唯象学 · 物理学 2009-10-31 Peter Herczeg

The searches for CP violating effects in diatomic molecules, such as $\text{HfF}^+$ and ThO, are typically interpreted as a probe of the electron's electric dipole moment ($e\text{EDM}$), a new electron-nucleon interaction, and a new…

高能物理 - 唯象学 · 物理学 2024-09-20 Chaja Baruch , P. Bryan Changala , Yuval Shagam , Yotam Soreq

The francium atom is considered as a prospective candidate system to search for the T,P-violating electron electric dipole moment [T. Aoki et al Quantum Sci. Technol. 6, 044008 (2021)]. We demonstrate that the same experiment can be used…

原子物理 · 物理学 2022-03-17 D. E. Maison , L. V. Skripnikov

Polar diatomic molecules that have, or are expected to have a $^2\Sigma_{1/2}$-ground state are studied systematically with respect to simultaneous violation of parity $\mathcal{P}$ and time-reversal $\mathcal{T}$ with numerical methods and…

化学物理 · 物理学 2019-03-27 Konstantin Gaul , Sebastian Marquardt , Timur Isaev , Robert Berger

We present state-of-the-art configuration interaction and coupled cluster calculations of the electron electric dipole moment, the nucleon-electron scalar-pseudoscalar, and the magnetic hyperfine interaction constants ($\alpha_{d_e},…

原子物理 · 物理学 2019-10-28 Timo Fleig , Leonid V. Skripnikov

HfF$^+$ cation is a very promising system to search for the electron electric dipole moment (EDM), and corresponding experiment is carried out by E. Cornell group. Here we theoretically investigate the cation to search for another T,P-odd…

原子物理 · 物理学 2017-03-08 L. V. Skripnikov , A. V. Titov , V. V. Flambaum

Parity- and time-reversal-symmetry violating interaction constants required for the interpretation of a recent measurement (arXiv:1704.07928 [physics.atom-ph]) of corresponding symmetry violations in the $\Omega=1$ (${^3\Delta}_1$) science…

原子物理 · 物理学 2017-10-18 Timo Fleig
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