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Recent measurements in paramagnetic molecules improved the limit on the electron electric dipole moment (EDM) by an order of magnitude. Time-reversal (T) and parity (P) symmetry violation in molecules may also come from their nuclei. We…

Atomic Physics · Physics 2014-09-12 V. V. Flambaum , D. DeMille , M. G. Kozlov

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…

Atomic Physics · Physics 2017-03-08 L. V. Skripnikov , A. V. Titov , V. V. Flambaum

All-electron configuration interaction theory in the framework of the Dirac-Coulomb Hamiltonian has been applied to the TaN molecule, a promising candidate in the search for Beyond-Standard-Model physics in both the hadron and the lepton…

Atomic Physics · Physics 2016-01-20 Timo Fleig , Malaya K. Nayak , Mikhail Kozlov

The existence of permanent electric dipole moments (EDMs) and magnetic quadrupole moments (MQMs) violate both time reversal invariance ($T$) and parity ($P$). Following the $CPT$ theorem they also violate combined $CP$ symmetry. Nuclear EDM…

High Energy Physics - Phenomenology · Physics 2018-12-19 B. G. C. Lackenby , V. V. Flambaum

Nuclear magnetic quadrupole moments (MQMs), like intrinsic electric dipole moments of elementary particles, violate both parity and time-reversal symmetry and therefore probe physics beyond the Standard Model of particle physics. We report…

Investigations of CP violation in hadron sector may be done using measurements in the ThO molecule. Recent measurements in this molecule improved the limit on electron EDM by an order of magnitude. Another time reversal (T) and parity (P)…

Atomic Physics · Physics 2015-01-13 L. V. Skripnikov , A. N. Petrov , A. V. Titov , V. V. Flambaum

Theories that extend the Standard Model of particle physics often introduce new interactions that violate charge-parity (CP) symmetry. CP-violating effects within an atomic nucleus can be probed by measuring its nuclear magnetic quadrupole…

Atomic Physics · Physics 2022-12-12 C. J. Ho , J. Lim , B. E. Sauer , M. R. Tarbutt

Nuclei with an octupole deformation have a non-zero electric octupole moment, electric dipole moment (EDM), Schiff moment and magnetic quadrupole moment (MQM) in the intrinsic frame which rotates with the nucleus. In a state with definite…

High Energy Physics - Phenomenology · Physics 2022-06-29 V. V. Flambaum , A. J. Mansour

Searches for the nuclear magnetic quadrupole moment (MQM) and nuclear Schiff moment (NSM) have high discovery potential for violations of time ($T$) and parity ($P$) reversal symmetries beyond the Standard Model. Molecules containing heavy…

Atomic Physics · Physics 2025-09-16 Xing Fan , Lan Cheng

New sources of charge-parity (CP) violation, beyond the known sources in the standard model (SM), are required to explain the baryon asymmetry of the universe. Measurement of a non-zero permanent electric dipole moment (EDM) in fundamental…

Nuclear Experiment · Physics 2024-04-10 Prajwal MohanMurthy , Umesh Silwal , Jeff A. Winger

Parity and time invariance violating forces produce collective P- and T- odd moments in nuclei with static octupole deformation. Collective Schiff moment, electric octupole and dipole and also magnetic quadrupole appear due to the mixing of…

Nuclear Theory · Physics 2009-01-23 N. Auerbach , V. V. Flambaum , V. Spevak

An experiment to search for the electron electric dipole moment (\eEDM) on the metastable $H^3\Delta_1$ state of ThO molecule was proposed and now in the final stage of preparation by the ACME collaboration [http://www.electronedm.org]. To…

Chemical Physics · Physics 2013-12-13 L. V. Skripnikov , A. N. Petrov , A. V. Titov

The discovery of the atomic electric dipole moment (EDM) would reveal the simultaneous violation of parity (P) and time-reversal (T) invariance. The EDM can be induced by T-odd forces between the nucleus and atomic electrons. As the nuclear…

Nuclear Theory · Physics 2008-11-26 Naftali Auerbach , Vladimir Zelevinsky

We discuss the nuclear anapole moment, a new P odd, T even electromagnetic multipole. Its discovery in the cesium experiment gives a first-rate information on parity-nonconserving nuclear forces. New prospects in the field are considered.…

Nuclear Theory · Physics 2009-11-10 V. F. Dmitriev , I. B. Khriplovich

Recently an improved limits on the electron electric dipole moment, \eEDM, and dimensionless constant, $k_{T,P}$, characterizing the strength of the T,P-odd pseudoscalar$-$scalar electron$-$nucleus neutral current interaction in the…

Atomic Physics · Physics 2015-01-13 L. V. Skripnikov , A. V. Titov

The electric dipole moment (EDM) of a particle violates both time reversal (T) and space reflection (P) symmetries. There have been recent suggestions for searches of the electron EDM using solid state experiments [1,2]. These experiments…

Strongly Correlated Electrons · Physics 2009-11-07 S. A. Kuenzi , O. P. Sushkov , V. A. Dzuba , J. M. Cadogan

The TaO$^+$ molecular ion is proposed as a candidate system for detecting signatures of charge parity (${\cal{CP}}$) violating physics beyond the standard model of elementary particles. The electron electric dipole moment (EDM) effective…

Atomic Physics · Physics 2017-02-15 Timo Fleig

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

CP violation effects produced by the nuclear magnetic quadrupole moment (MQM), electron electric dipole moment (EDM) and scalar$-$pseudoscalar nucleus$-$electron neutral current (SP) interaction in $^{177}$Hf$^{19}$F$^+$ and…

Atomic Physics · Physics 2018-10-17 A. N. Petrov , L. V. Skripnikov , A. V. Titov , V. V. Flambaum

We propose a nuclear mechanism which can induce an atomic electric dipole moment (EDM). Parity and time reversal violating (P,T-odd) nuclear forces generate a mixed P,T-odd nuclear polarizability beta_{ik} (defined by an energy shift U =…

Nuclear Theory · Physics 2007-05-23 V. V. Flambaum , J. S. M. Ginges , G. Mititelu
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