Electric dipole moments as probes of CPT invariance

Pavel A. Bolokhov; Maxim Pospelov

doi:10.1063/1.2220380

Electric dipole moments as probes of CPT invariance

Pavel A. Bolokhov, Maxim Pospelov

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Electric dipole moments (EDMs) of elementary particles and atoms probe violations of T and P symmetries and consequently of CP if CPT is an exact symmetry. We point out that EDMs can also serve as sensitive probes of CPT-odd but CP-even interactions. In a class of theories where the breaking of CPT is introduced via the breaking of Lorentz invariance, we identify the leading dimension five operators that induce non-zero EDMs. We find that the EDMs of neutrons, and heavy diamagnetic atoms provide best sensitivity to the T, P, CPT-odd interactions, allowing to probe energy scales as high as 10¹² GeV. We also point out that additional tests of Lorentz invariance are required in order to distinguish between CP-odd and CPT-odd effects, should non-zero EDMs be found.

Original language	English (US)
Title of host publication	PARTICLES AND NUCLEI
Subtitle of host publication	Seventeenth Internatinal Conference on Particles and Nuclei
Pages	781-783
Number of pages	3
DOIs	https://doi.org/10.1063/1.2220380
State	Published - 2006
Externally published	Yes
Event	PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei - Santa Fe, NM, United States Duration: Oct 23 2005 → Oct 30 2005

Publication series

Name	AIP Conference Proceedings
Volume	842
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei
Country/Territory	United States
City	Santa Fe, NM
Period	10/23/05 → 10/30/05

Keywords

CPT Symmetry
Electric dipole moment

Publisher link

10.1063/1.2220380

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Bolokhov, PA & Pospelov, M 2006, Electric dipole moments as probes of CPT invariance. in PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP Conference Proceedings, vol. 842, pp. 781-783, PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei, Santa Fe, NM, United States, 10/23/05. https://doi.org/10.1063/1.2220380

@inproceedings{fd842630855a4ada83e3b929d6061aef,

title = "Electric dipole moments as probes of CPT invariance",

abstract = "Electric dipole moments (EDMs) of elementary particles and atoms probe violations of T and P symmetries and consequently of CP if CPT is an exact symmetry. We point out that EDMs can also serve as sensitive probes of CPT-odd but CP-even interactions. In a class of theories where the breaking of CPT is introduced via the breaking of Lorentz invariance, we identify the leading dimension five operators that induce non-zero EDMs. We find that the EDMs of neutrons, and heavy diamagnetic atoms provide best sensitivity to the T, P, CPT-odd interactions, allowing to probe energy scales as high as 1012 GeV. We also point out that additional tests of Lorentz invariance are required in order to distinguish between CP-odd and CPT-odd effects, should non-zero EDMs be found.",

keywords = "CPT Symmetry, Electric dipole moment",

author = "Bolokhov, \{Pavel A.\} and Maxim Pospelov",

note = "Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei ; Conference date: 23-10-2005 Through 30-10-2005",

year = "2006",

doi = "10.1063/1.2220380",

language = "English (US)",

isbn = "0735403384",

series = "AIP Conference Proceedings",

pages = "781--783",

booktitle = "PARTICLES AND NUCLEI",

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TY - GEN

T1 - Electric dipole moments as probes of CPT invariance

AU - Bolokhov, Pavel A.

AU - Pospelov, Maxim

PY - 2006

Y1 - 2006

N2 - Electric dipole moments (EDMs) of elementary particles and atoms probe violations of T and P symmetries and consequently of CP if CPT is an exact symmetry. We point out that EDMs can also serve as sensitive probes of CPT-odd but CP-even interactions. In a class of theories where the breaking of CPT is introduced via the breaking of Lorentz invariance, we identify the leading dimension five operators that induce non-zero EDMs. We find that the EDMs of neutrons, and heavy diamagnetic atoms provide best sensitivity to the T, P, CPT-odd interactions, allowing to probe energy scales as high as 1012 GeV. We also point out that additional tests of Lorentz invariance are required in order to distinguish between CP-odd and CPT-odd effects, should non-zero EDMs be found.

AB - Electric dipole moments (EDMs) of elementary particles and atoms probe violations of T and P symmetries and consequently of CP if CPT is an exact symmetry. We point out that EDMs can also serve as sensitive probes of CPT-odd but CP-even interactions. In a class of theories where the breaking of CPT is introduced via the breaking of Lorentz invariance, we identify the leading dimension five operators that induce non-zero EDMs. We find that the EDMs of neutrons, and heavy diamagnetic atoms provide best sensitivity to the T, P, CPT-odd interactions, allowing to probe energy scales as high as 1012 GeV. We also point out that additional tests of Lorentz invariance are required in order to distinguish between CP-odd and CPT-odd effects, should non-zero EDMs be found.

KW - CPT Symmetry

KW - Electric dipole moment

UR - https://www.scopus.com/pages/publications/33846347595

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U2 - 10.1063/1.2220380

DO - 10.1063/1.2220380

M3 - Conference contribution

AN - SCOPUS:33846347595

SN - 0735403384

SN - 9780735403383

T3 - AIP Conference Proceedings

SP - 781

EP - 783

BT - PARTICLES AND NUCLEI

T2 - PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei

Y2 - 23 October 2005 through 30 October 2005

ER -

Electric dipole moments as probes of CPT invariance

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