Searches for Electric Dipole Moments—Overview of Status and New Experimental Efforts

Kuchler, Florian

doi:10.3390/universe5020056

Searches for Electric Dipole Moments—Overview of Status and New Experimental Efforts

Journal Article · Sat Feb 09 00:00:00 EST 2019 · Universe

DOI:https://doi.org/10.3390/universe5020056· OSTI ID:1609531

^[1]

TRIUMF, Vancouver, BC (Canada); DOE/OSTI

Searches for permanent electric dipole moments (EDMs) of fundamental particles, atoms and molecules are promising experiments to constrain and potentially reveal beyond Standard Model (SM) physics. A non-zero EDM is a direct manifestation of time-reversal (T) violation, and, equivalently, violation of the combined operation of charge-conjugation (C) and parity inversion (P). Identifying new sources of CP violation can help to solve fundamental puzzles of the SM, e.g., the observed baryon-asymmetry in the Universe. Theoretical predictions for magnitudes of EDMs in the SM are many orders of magnitude below current experimental limits. However, many theories beyond the SM require larger EDMs. Experimental results, especially when combined in a global analysis, impose strong constraints on CP violating model parameters. Including an overview of EDM searches, I will focus on the future neutron EDM experiment at TRIUMF (Vancouver). For this effort, the TUCAN (TRIUMF Ultra Cold Advanced Neutron source) collaboration is aiming to build a strong, world leading source of ultra cold neutrons (UCN) based on a unique combination of a spallation target and a superfluid helium UCN converter. Another focus will be the search for an EDM of the diamagnetic atom ¹²⁹ Xe using a ³ He comagnetometer and SQUID detection. The HeXeEDM collaboration has taken EDM data in 2017 and 2018 in the magnetically shielded room (BMSR-2) at PTB Berlin.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Contributing Organization:: HeXeEDM Collaboration; TUCAN Collaboration

Grant/Contract Number:: FG02-04ER41331

OSTI ID:: 1609531

Alternate ID(s):: OSTI ID: 22854404

Journal Information:: Universe, Journal Name: Universe Journal Issue: 2 Vol. 5; ISSN 2218-1997

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

References (32)

Spin clocks: Probing fundamental symmetries in nature: Spin clocks: Probing fundamental symmetries in nature Heil, Werner; Gemmel, Claudia; Karpuk, Sergei Annalen der Physik, Vol. 525, Issue 8-9 https://doi.org/10.1002/andp.201300048	journal	June 2013
EDM measurement in 129Xe atom using dual active feedback nuclear spin maser Sato, T.; Ichikawa, Y.; Ohtomo, Y. Hyperfine Interactions, Vol. 230, Issue 1-3 https://doi.org/10.1007/s10751-014-1113-9	journal	December 2014
A new search for the atomic EDM of 129Xe at FRM-II Kuchler, F.; Babcock, E.; Burghoff, M. Hyperfine Interactions, Vol. 237, Issue 1 https://doi.org/10.1007/s10751-016-1302-9	journal	May 2016
Theory of the neutron electric dipole moment Ellis, John Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 284, Issue 1 https://doi.org/10.1016/0168-9002(89)90243-X	journal	November 1989
What is the value of the neutron electric dipole moment in the Kobayashi-Maskawa model? Khriplovich, I. B.; Zhitnitsky, A. R. Physics Letters B, Vol. 109, Issue 6 https://doi.org/10.1016/0370-2693(82)91121-2	journal	March 1982
Electric dipole moments of nuclei Donoghue, John F.; Holstein, Barry R.; Musolf, M. J. Physics Letters B, Vol. 196, Issue 2 https://doi.org/10.1016/0370-2693(87)90603-4	journal	October 1987
Super-thermal sources of ultra-cold neutrons Golub, R.; Pendlebury, J. M. Physics Letters A, Vol. 53, Issue 2 https://doi.org/10.1016/0375-9601(75)90500-9	journal	June 1975
The interaction of Ultra-Cold Neutrons (UCN) with liquid helium and a superthermal UCN source Golub, R.; Pendlebury, J. M. Physics Letters A, Vol. 62, Issue 5 https://doi.org/10.1016/0375-9601(77)90434-0	journal	September 1977
Electric dipole moments as probes of new physics Pospelov, Maxim; Ritz, Adam Annals of Physics, Vol. 318, Issue 1 https://doi.org/10.1016/j.aop.2005.04.002	journal	July 2005
Apparatus for measurement of the electric dipole moment of the neutron using a cohabiting atomic-mercury magnetometer Baker, C. A.; Chibane, Y.; Chouder, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 736 https://doi.org/10.1016/j.nima.2013.10.005	journal	February 2014
A beamline for fundamental neutron physics at TRIUMF Ahmed, S.; Andalib, T.; Barnes, M. J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 927 https://doi.org/10.1016/j.nima.2019.01.074	journal	May 2019
Neutron electric dipole moment measurement with a buffer gas comagnetometer Masuda, Yasuhiro; Asahi, Koichiro; Hatanaka, Kichiji Physics Letters A, Vol. 376, Issue 16 https://doi.org/10.1016/j.physleta.2012.02.056	journal	March 2012
Measurement of the neutron electric dipole moment via spin rotation in a non-centrosymmetric crystal Fedorov, V. V.; Jentschel, M.; Kuznetsov, I. A. Physics Letters B, Vol. 694, Issue 1 https://doi.org/10.1016/j.physletb.2010.09.033	journal	October 2010
Primordial nucleosynthesis: From precision cosmology to fundamental physics Iocco, Fabio; Mangano, Gianpiero; Miele, Gennaro Physics Reports, Vol. 472, Issue 1-6 https://doi.org/10.1016/j.physrep.2009.02.002	journal	March 2009
Improved limit on the electric dipole moment of the electron No authors listed Nature, Vol. 562, Issue 7727, p. 355-360 https://doi.org/10.1038/s41586-018-0599-8		October 2018
Planck 2013 results. XVI. Cosmological parameters Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C. Astronomy & Astrophysics, Vol. 571 https://doi.org/10.1051/0004-6361/201321591	journal	October 2014
A magnetically shielded room with ultra low residual field and gradient Altarev, I.; Babcock, E.; Beck, D. Review of Scientific Instruments, Vol. 85, Issue 7 https://doi.org/10.1063/1.4886146	journal	July 2014
Violation of CP in variance, C asymmetry, and baryon asymmetry of the universe Sakharov, Andrei D. Soviet Physics Uspekhi, Vol. 34, Issue 5 https://doi.org/10.1070/PU1991v034n05ABEH002497	journal	May 1991
Measurability of Nuclear Electric Dipole Moments Schiff, L. I. Physical Review, Vol. 132, Issue 5 https://doi.org/10.1103/PhysRev.132.2194	journal	December 1963
Geometric-phase-induced false electric dipole moment signals for particles in traps Pendlebury, J. M.; Heil, W.; Sobolev, Yu. Physical Review A, Vol. 70, Issue 3 https://doi.org/10.1103/PhysRevA.70.032102	journal	September 2004
New concept for a neutron electric dipole moment search using a pulsed beam Piegsa, Florian M. Physical Review C, Vol. 88, Issue 4 https://doi.org/10.1103/PhysRevC.88.045502	journal	October 2013
Electric dipole moments: A global analysis Chupp, Timothy; Ramsey-Musolf, Michael Physical Review C, Vol. 91, Issue 3 https://doi.org/10.1103/PhysRevC.91.035502	journal	March 2015
Improved limit on the Ra 225 electric dipole moment Bishof, Michael; Parker, Richard H.; Bailey, Kevin G. Physical Review C, Vol. 94, Issue 2 https://doi.org/10.1103/PhysRevC.94.025501	journal	August 2016
Spallation Ultracold Neutron Source of Superfluid Helium below 1 K Masuda, Yasuhiro; Hatanaka, Kichiji; Jeong, Sun-Chan Physical Review Letters, Vol. 108, Issue 13 https://doi.org/10.1103/PhysRevLett.108.134801	journal	March 2012
Reduced Limit on the Permanent Electric Dipole Moment of Hg 199 Graner, B.; Chen, Y.; Lindahl, E. G. Physical Review Letters, Vol. 116, Issue 16 https://doi.org/10.1103/PhysRevLett.116.161601	journal	April 2016
CP Conservation in the Presence of Pseudoparticles Peccei, R. D.; Quinn, Helen R. Physical Review Letters, Vol. 38, Issue 25 https://doi.org/10.1103/PhysRevLett.38.1440	journal	June 1977
Atomic Electric Dipole Moment Measurement Using Spin Exchange Pumped Masers of 129 Xe and 3 He Rosenberry, M. A.; Chupp, T. E. Physical Review Letters, Vol. 86, Issue 1 https://doi.org/10.1103/PhysRevLett.86.22	journal	January 2001
High-Sensitivity Atomic Magnetometer Unaffected by Spin-Exchange Relaxation Allred, J. C.; Lyman, R. N.; Kornack, T. W. Physical Review Letters, Vol. 89, Issue 13 https://doi.org/10.1103/PhysRevLett.89.130801	journal	September 2002
Improved Experimental Limit on the Electric Dipole Moment of the Neutron Baker, C. A.; Doyle, D. D.; Geltenbort, P. Physical Review Letters, Vol. 97, Issue 13 https://doi.org/10.1103/PhysRevLett.97.131801	journal	September 2006
Spin-exchange optical pumping of noble-gas nuclei Walker, Thad G.; Happer, William Reviews of Modern Physics, Vol. 69, Issue 2 https://doi.org/10.1103/RevModPhys.69.629	journal	April 1997
Electroweak baryogenesis Trodden, Mark Reviews of Modern Physics, Vol. 71, Issue 5 https://doi.org/10.1103/RevModPhys.71.1463	journal	October 1999
A note on Majorana Neutrinos, Leptonic ckm and Electron Electric Dipole Moment Ng, Daniel; Ng, John N. Modern Physics Letters A, Vol. 11, Issue 03 https://doi.org/10.1142/S0217732396000254	journal	January 1996

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Astronomy & Astrophysics
CP violation
EDM
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electric dipole moment
neutron
new physics
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Searches for Electric Dipole Moments—Overview of Status and New Experimental Efforts

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