Related papers: Methods for measuring the electron EDM using ultra…

Measurement of the permanent electric dipole moment of the neutron

We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement…

High Energy Physics - Experiment · Physics 2020-03-04 C. Abel , S. Afach , N. J. Ayres , C. A. Baker , G. Ban , G. Bison , K. Bodek , V. Bondar , M. Burghoff , E. Chanel , Z. Chowdhuri , P. -J. Chiu , B. Clement , C. B. Crawford , M. Daum , S. Emmenegger , L. Ferraris-Bouchez , M. Fertl , P. Flaux , B. Franke , A. Fratangelo , P. Geltenbort , K. Green , W. C. Griffith , M. van der Grinten , Z. D. Grujić , P. G. Harris , L. Hayen , W. Heil , R. Henneck , V. Hélaine , N. Hild , Z. Hodge , M. Horras , P. Iaydjiev , S. N. Ivanov , M. Kasprzak , Y. Kermaidic , K. Kirch , A. Knecht , P. Knowles , H. -C. Koch , P. A. Koss , S. Komposch , A. Kozela , A. Kraft , J. Krempel , M. Kuźniak , B. Lauss , T. Lefort , Y. Lemière , A. Leredde , P. Mohanmurthy , A. Mtchedlishvili , M. Musgrave , O. Naviliat-Cuncic , D. Pais , F. M. Piegsa , E. Pierre , G. Pignol , C. Plonka-Spehr , P. N. Prashanth , G. Quéméner , M. Rawlik , D. Rebreyend , I. Rienäcker , D. Ries , S. Roccia , G. Rogel , D. Rozpedzik , A. Schnabel , P. Schmidt-Wellenburg , N. Severijns , D. Shiers , R. Tavakoli Dinani , J. A. Thorne , R. Virot , J. Voigt , A. Weis , E. Wursten , G. Wyszynski , J. Zejma , J. Zenner , G. Zsigmond

Precise Measurement of the $\Lambda$ Electric Dipole Moment through the Entangled Strange Baryon-Antibaryon System

The dominance of matter over antimatter in the universe has consistently driven the pursuit of new physics beyond the Standard Model that violates charge-parity symmetry. Unlike the well-constrained electrons and neutrons, strange baryons…

High Energy Physics - Experiment · Physics 2025-07-01 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , X. C. Ai , R. Aliberti , A. Amoroso , Q. An , Y. Bai , O. Bakina , Y. Ban , H. -R. Bao , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , M. H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , X. Y. Chai , J. F. Chang , G. R. Che , Y. Z. Che , C. H. Chen , Chao Chen , G. Chen , H. S. Chen , H. Y. Chen , M. L. Chen , S. J. Chen , S. L. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , X. Y. Chen , Y. B. Chen , Y. Q. Chen , Y. Q. Chen , Z. J. Chen , Z. K. Chen , S. K. Choi , X. Chu , G. Cibinetto , F. Cossio , J. Cottee-Meldrum , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , C. Q. Deng , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , Y. X. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , M. C. Du , S. X. Du , S. X. Du , Y. Y. Duan , P. Egorov , G. F. Fan , J. J. Fan , Y. H. Fan , J. Fang , J. Fang , S. S. Fang , W. X. Fang , Y. Q. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , L. Feng , Q. X. Feng , Y. T. Feng , M. Fritsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , X. B. Gao , Y. Gao , Y. N. Gao , Y. N. Gao , Y. Y. Gao , S. Garbolino , I. Garzia , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A. Gilman , K. Goetzen , J. D. Gong , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y. Guan , A. Q. Guo , L. B. Guo , M. J. Guo , R. P. Guo , Y. P. Guo , A. Guskov , J. Gutierrez , K. L. Han , T. T. Han , F. Hanisch , K. D. Hao , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , P. C. Hong , G. Y. Hou , X. T. Hou , Y. R. Hou , Z. L. Hou , H. M. Hu , J. F. Hu , Q. P. Hu , S. L. 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Reduced Limit on the Permanent Electric Dipole Moment of $^{199}$Hg

This paper describes the results of the most recent measurement of the permanent electric dipole moment (EDM) of neutral $^{199}$Hg atoms. Fused silica vapor cells containing enriched $^{199}$Hg are arranged in a stack in a common magnetic…

Atomic Physics · Physics 2017-08-21 B. Graner , Y. Chen , E. G. Lindahl , B. R. Heckel

Electric dipole moments: a theory overview

Electric dipole moments are extremely sensitive probes of physics beyond the Standard Model. A vibrant experimental program is in place, with the goal of improving existing bounds on the electron and neutron electric dipole moments by one…

High Energy Physics - Phenomenology · Physics 2018-10-03 Emanuele Mereghetti

Candidate molecular ions for an electron electric dipole moment experiment

This paper is a theoretical work in support of a newly proposed experiment (R. Stutz and E. Cornell, Bull. Am. Soc. Phys. 89, 76 2004) that promises greater sensitivity to measurements of the electron's electric dipole moment (EDM) based on…

Atomic Physics · Physics 2009-11-11 Edmund R. Meyer , John L. Bohn , Michael P. Deskevich

The calculations of Nucleon Electric Dipole Moment using background field on Lattice QCD

Measurements of nucleon and nuclei Electric Dipole Moments (EDMs) play an important role in probing CP violation and exploring physics beyond the Standard Model. We extract the neutron EDM by measuring the energy shift of the nucleon…

High Energy Physics - Lattice · Physics 2023-11-13 Fangcheng He , Michael Abramczyk , Tom Blum , Taku Izubuchi , Hiroshi Ohki , Sergey Syritsyn

Spectroscopy of short-lived radioactive molecules: A sensitive laboratory for new physics

The study of molecular systems provides exceptional opportunities for the exploration of the fundamental laws of nature and for the search for physics beyond the Standard Model of particle physics. Measurements of molecules composed of…

Nuclear Theory · Physics 2020-06-02 R. F. Garcia Ruiz , R. Berger , J. Billowes , C. L. Binnersley , M. L. Bissell , A. A. Breier , A. J. Brinson , K. Chrysalidis , T. Cocolios , B. Cooper , K. T. Flanagan , T. F. Giesen , R. P. de Groote , S. Franchoo , F. P. Gustafsson , T. A. Isaev , A. Koszorus , G. Neyens , H. A. Perrett , C. M. Ricketts , S. Rothe , L. Schweikhard , A. R. Vernon , K. D. A. Wendt , F. Wienholtz , S. G. Wilkins , X. F. Yang

New Concept for a Neutron Electric Dipole Moment Search using a Pulsed Beam

A concept to search for a neutron electric dipole moment (nEDM) is presented, which employs a pulsed neutron beam instead of the nowadays established use of storable ultracold neutrons (UCN). The technique takes advantage of the high peak…

Instrumentation and Detectors · Physics 2013-10-15 F. M. Piegsa

The equivalent Electric Dipole Moment in SMEFT

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

Clarification on theoretical predictions for general relativistic effects in frozen spin storage rings

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

Ultracold Dipolar Molecules Composed of Strongly Magnetic Atoms

In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar system made of ultracold bosonic dipolar molecules with large magnetic dipole moments. Our dipolar molecules are formed in weakly bound Feshbach…

Quantum Gases · Physics 2015-11-24 A. Frisch , M. Mark , K. Aikawa , S. Baier , R. Grimm , A. Petrov , S. Kotochigova , G. Quéméner , M. Lepers , O. Dulieu , F. Ferlaino

Electric Dipole Moments and New Physics

Searches for intrinsic electric dipole moments (EDMs) of nucleons, atoms and molecules are precision flavor-diagonal probes of new $CP$-odd physics, as motivated by the need to explain the matter-antimatter asymmetry in the universe. We…

High Energy Physics - Phenomenology · Physics 2026-03-19 Maxim Pospelov , Adam Ritz

Boundaries for efficient use of electron vortex beams to measure magnetic properties

Development of experimental techniques for characterization of magnetic properties at high spatial resolution is essential for progress in miniaturization of magnetic devices, for example, in data storage media. Inelastic scattering of…

Materials Science · Physics 2014-04-02 Jan Rusz , Somnath Bhowmick

A Global View of the EDM Landscape

Permanent electric dipole moments (EDMs) are sensitive probes of the symmetry structure of elementary particles, which in turn is closely tied to the baryon asymmetry in the universe. A meaningful interpretation framework for EDM…

High Energy Physics - Phenomenology · Physics 2025-04-07 Skyler Degenkolb , Nina Elmer , Tanmoy Modak , Margarete Mühlleitner , Tilman Plehn

Hypermetallic Polar Molecules for Precision Measurements

Laser cooling is a powerful method to control molecules for applications in precision measurement, as well as quantum information, many-body physics, and fundamental chemistry. However, many optically-active metal centers in valence states…

Atomic Physics · Physics 2019-08-05 Matthew J. O'Rourke , Nicholas R. Hutzler

EFT approach to the electron Electric Dipole Moment at the two-loop level

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

Mercury Hydroxide as a Promising Triatomic Molecule to Probe P,T-odd Interactions

In the quest to find a favourable triatomic molecule for detecting electric dipole moment of an electron (eEDM), we identify mercury hydroxide (HgOH) as an extremely attractive candidate from both experimental and theoretical viewpoints.…

Atomic Physics · Physics 2019-08-21 R. Mitra , V. S. Prasannaa , B. K. Sahoo , X. Tong , M. Abe , B. P. Das

Quantum dynamics in atomic-fountain experiments for measuring the electric dipole moment of the electron with improved sensitivity

An improved measurement of the electron electric dipole moment (EDM) appears feasible using ground-state alkali atoms in an atomic fountain in which a strong electric field, which couples to a conceivable electron dipole moment (EDM), is…

Atomic Physics · Physics 2012-11-20 B. J. Wundt , C. T. Munger , U. D. Jentschura

Sensitivity Study of the Tau Lepton Electric Dipole Moment at the Super Tau-Charm Facility

This study investigates the intrinsic electric dipole moment (EDM) of the $\tau$ lepton, which is an important quantity in the search for physics beyond the Standard Model (BSM). In preparation for future measurements at the Super Tau-Charm…

High Energy Physics - Experiment · Physics 2025-09-09 Xulei Sun , Yongcheng Wu , Xiaorong Zhou

Electric dipole moments, present and future

Upper limits on the electric dipole moments (EDM) of elementary particles and atoms are presented, and their physical implications are discussed. The bounds following from the neutron and atomic experiments are comparable. In particular,…

High Energy Physics - Phenomenology · Physics 2009-10-31 I. B. Khriplovich