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In this proceeding, we present the results of the theoretical evaluations of the electric dipole moment (EDM) of light nuclei, including the preliminary value for the 11B nucleus. From the data, we can infer an approximate counting rule,…

Nuclear Theory · Physics 2018-08-30 Nodoka Yamanaka

We employ a recently developed three-dimensional semiclassical model to identify nondipole effects in triple ionization of Ne driven by infrared laser pulses at intensities where electron-electron correlation prevails. This model fully…

Atomic Physics · Physics 2023-02-28 Georgios Petros Katsoulis , Matthew Benjamin Peters , Agapi Emmanouilidou

The existence of electric dipole moments (EDM) for fundamental particles signals time-reversal symmetry (T) violation accompanied by violation of parity (P); only upper limits have been established to date. Time-reversal violation in turn…

Nuclear Experiment · Physics 2022-03-02 D. H. Beck , D. Budker , B. K. Park , nEDM Collaboration

A precise theoretical study of the electronic structure of heavy atom diatomic molecules is of key importance to interpret the experiments in the search for violation of time-reversal (T) and spatial-parity (P) symmetries of fundamental…

Atomic Physics · Physics 2016-12-02 L. V. Skripnikov

According to the Schiff theorem nuclear electric dipole moment (EDM) is completely shielded in a neutral atom by electrons. This makes a static nuclear electric dipole moment (EDM) unobservable. Interaction with the axion dark matter field…

High Energy Physics - Phenomenology · Physics 2020-01-01 V. V. Flambaum , H. B. Tran Tan

We consider the consequences of a neutral dark-matter particle with a nonzero electric and/or magnetic dipole moment. Theoretical constraints, as well as constraints from direct searches, precision tests of the standard model, the cosmic…

Heavy diatomic molecules have been identified as good candidates for use in electron electric dipole moment (eEDM) searches. Suitable molecular species can be produced in pulsed beams, but with a total flux and/or temporal evolution that…

The outstanding progress has been made in reducing the upper bounds on EDM of several particles. Even if significant challenges must be overcome to further improve these limits, it is still one of the best chances to detect new type of…

High Energy Physics - Phenomenology · Physics 2020-10-28 V. G. Baryshevsky , P. I. Porshnev

This paper explores the relativistic behavior of spin--half particles possessing an Electric Dipole Moment (EDM) in a curved spacetime background induced by a spiral dislocation. A thorough review of the mathematical formulation of the…

General Relativity and Quantum Cosmology · Physics 2024-08-05 A. A. Araújo Filho , H. Hassanabadi , J. A. A. S. Reis , L. Lisboa-Santos

Electromagnetic moments of particles carry important information on their internal structure, as well as on the structure of the effective Lagrangian describing their underlying field theory. One of the cleanest observable of such kind is…

General Relativity and Quantum Cosmology · Physics 2021-06-01 Andras Laszlo , Zoltan Zimboras

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,…

Atomic Physics · Physics 2015-05-01 L. V. Skripnikov , A. V. Titov

We present the conceptual design of an experiment to measure the electron's electric dipole moment (eEDM) using $^{138}$BaOH molecules in an optical lattice. The BaOH molecule is laser-coolable and highly sensitive to the eEDM, making it an…

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…

Atomic Physics · Physics 2018-09-14 V. A. Dzuba , V. V. Flambaum , I. B. Samsonov , Y. V. Stadnik

The permanent electric dipole moment (EDM) of the $^{171}$Yb $(I=1/2)$ atom is measured with atoms held in an optical dipole trap (ODT). By enabling a cycling transition that is simultaneously spin-selective and spin-preserving, a quantum…

Atomic Physics · Physics 2022-08-31 T. A. Zheng , Y. A. Yang , S. -Z. Wang , J. T. Singh , Z. -X. Xiong , T. Xia , Z. -T. Lu

We experimentally demonstrate the cesium electric quadrupole transition from the 6S1/2 ground state to the 7D3/2,5/2 excited state through a virtual level by using a single laser at 767 nm. The excited state energy level population is…

Atomic Physics · Physics 2020-08-25 Sandan Wang , Jinpeng Yuan , Lirong Wang , Liantuan Xiao , Suotang Jia

The magnetic dipole interaction played a central role in the development of QED, and continued in that role for the Standard Model. The muon anomalous magnetic moment has served as a benchmark for models of new physics, and the present…

High Energy Physics - Experiment · Physics 2015-03-17 B. Lee Roberts

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

It is shown that in the experiments for search of the EDM of an electron (atom, molecule) the T-odd magnetic moment induced by an electric field and the T-odd electric dipole moment induced by a magnetic field will be also measured. It is…

High Energy Physics - Phenomenology · Physics 2009-11-10 Vladimir G. Baryshevsky

Recently the Eu$_{0.5}$Ba$_{0.5}$TiO$_{3}$ solid was suggested as a promising candidate for experimental search of the electron electric dipole moment. To interpret the results of this experiment one should calculate the effective electric…

Atomic Physics · Physics 2015-01-13 L V Skripnikov , A V Titov , A N Petrov , N S Mosyagin , O P Sushkov