Electric dipole moment searches: Effect of linear electric field frequency shifts induced in confined gases

Journal Article · Wed Nov 15 04:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.052115· OSTI ID:20979322

Barabanov, A L ^[1]; Golub, R ^[2]; Lamoreaux, S K ^[3]

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1. Kurchatov Institute, 123182 Moscow (Russian Federation)
2. Physics Department, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)
3. University of California, Los Alamos National Laboratory, Physics Division, Los Alamos, New Mexico 87545 (United States) and Yale University, Department of Physics, P.O. Box 208120, New Haven, Connecticut 06520 (United States)

The search for particle electric dipole moments (EDM's) represents a most promising way to search for physics beyond the standard model. A number of groups are planning a new generation of experiments using stored gases of various kinds. In order to achieve the target sensitivities it will be necessary to deal with the systematic error resulting from the interaction of the well-known v-vectorxE-vector field with magnetic field gradients which is often referred to as the geometric phase effect [E. D. Commins, Am. J. Phys. 59, 1077 (1991); J. M. Pendlebury et al., Phys. Rev. A 70, 032102 (2004)]. This interaction produces a frequency shift linear in the electric field, mimicking an EDM. In this work we introduce an analytic form for the velocity autocorrelation function which determines the velocity-position correlation function which in turn determines the behavior of the frequency shift [S. K. Lamoreaux and R. Golub, Phys. Rev A 71, 032104 (2005)] and show how it depends on the operating conditions of the experiment. We also discuss some additional issues.

• OSTI ID: 20979322
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRELATION FUNCTIONS
ELECTRIC DIPOLE MOMENTS
ELECTRIC FIELDS
ERRORS
INTERACTIONS
MAGNETIC FIELDS
STANDARD MODEL
VECTORS
VELOCITY