skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Limits on CP nonconserving interactions from electric dipole moments

Abstract

I discuss bounds on CP-nonconserving (CPNC) and parity-nonconserving (PNC) hadronic interactions that result from measurements of atomic electric dipole moments. In most models of hadronic CPNC, the nuclear edm arises primarily from the polarization of the ground state by the CPNC PNC NN interaction, rather than from the edms of valence nucleons. When the atom is placed in an external field, the nucleus is fully shielded apart from nuclear finite size effects and relativistic corrections arising from hyperfine interactions, so that careful atomic calculations must be performed to deduce the residual sensitivity to the nuclear edm. I describe these shielding effects qualitatively, and present results from more detailed calculations. Atomic limits, when translated into effective bounds on the neutron edm, have now reached sensitivities that are comparable to direct neutron edm limits. I also discuss limits that can be extracted on CPNC parity-conserving (PC) hadronic interactions. Such interactions can generate atomic edms when combined with weak radiative corrections.

Authors:
Publication Date:
Research Org.:
Washington Univ., Seattle, WA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10181241
Report Number(s):
DOE/ER/40561-158
ON: DE94018582; IN: INT94-00-67; BR: 35KB01000/KB0300000; TRN: 94:018933
DOE Contract Number:  
FG06-90ER40561
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CP INVARIANCE; SYMMETRY BREAKING; NUCLEON-NUCLEON INTERACTIONS; ELECTRIC DIPOLE MOMENTS; HAMILTONIANS; RADIATIVE CORRECTIONS; 662340; 662120; HADRON INTERACTIONS; SYMMETRY, CONSERVATION LAWS, CURRENTS AND THEIR PROPERTIES

Citation Formats

Haxton, W C. Limits on CP nonconserving interactions from electric dipole moments. United States: N. p., 1994. Web. doi:10.2172/10181241.
Haxton, W C. Limits on CP nonconserving interactions from electric dipole moments. United States. https://doi.org/10.2172/10181241
Haxton, W C. 1994. "Limits on CP nonconserving interactions from electric dipole moments". United States. https://doi.org/10.2172/10181241. https://www.osti.gov/servlets/purl/10181241.
@article{osti_10181241,
title = {Limits on CP nonconserving interactions from electric dipole moments},
author = {Haxton, W C},
abstractNote = {I discuss bounds on CP-nonconserving (CPNC) and parity-nonconserving (PNC) hadronic interactions that result from measurements of atomic electric dipole moments. In most models of hadronic CPNC, the nuclear edm arises primarily from the polarization of the ground state by the CPNC PNC NN interaction, rather than from the edms of valence nucleons. When the atom is placed in an external field, the nucleus is fully shielded apart from nuclear finite size effects and relativistic corrections arising from hyperfine interactions, so that careful atomic calculations must be performed to deduce the residual sensitivity to the nuclear edm. I describe these shielding effects qualitatively, and present results from more detailed calculations. Atomic limits, when translated into effective bounds on the neutron edm, have now reached sensitivities that are comparable to direct neutron edm limits. I also discuss limits that can be extracted on CPNC parity-conserving (PC) hadronic interactions. Such interactions can generate atomic edms when combined with weak radiative corrections.},
doi = {10.2172/10181241},
url = {https://www.osti.gov/biblio/10181241}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 1994},
month = {Thu Sep 01 00:00:00 EDT 1994}
}