Title
Lorentz-violating contributions to the nuclear Schiff moment and nuclear EDM
Date Issued
01 March 2018
Access level
open access
Resource Type
journal article
Author(s)
Universidade Federal Do Maranhão
Publisher(s)
American Physical Society
Abstract
In the context of an atom endowed with nuclear electric dipole moments (EDM), we consider the effects on the Schiff moment of CPT-even Lorentz-violating (LV) terms that modify the Coulomb potential. First, we study the modifications on the Schiff moment when the nucleus interacts with the electronic cloud by means of a Coulomb potential altered only by the P-even LV components. Next, by supposing the existence of an additional intrinsic LV EDM generated by other LV sources, we assess the corrections to the Schiff moment when the interaction nucleus-electrons runs mediated by a Coulomb potential modified by both the P-odd and P-even LV components. We then use known estimates and EDM measurements to discuss upper bounds on the new Schiff moment components and the possibility of a nuclear EDM component ascribed to LV effects.
Volume
97
Issue
5
Language
English
OCDE Knowledge area
QuÃmica inorgánica, QuÃmica nuclear
FÃsica atómica, molecular y quÃmica
Scopus EID
2-s2.0-85044847311
Source
Physical Review D
ISSN of the container
24700010
Sponsor(s)
We benefited very much from discussion of this work with many colleagues, including Halina Abramowicz, Jim Brau, Nathaniel Craig, Erez Etzion, Howard Haber, Sho Iwamoto, Gabriel Lee, Maxim Perelstein, Philipp Roloff, Yael Shadmi, and Tomohiko Tanabe. We are grateful to Christophe Grojean, Ahmed Ismail, Mihoko Nojiri, Maxim Perelstein, and Shinya Kanemura for detailed discussions of the models analyzed in Sec. . We are especially grateful to Gauthier Durieux, Christophe Grojean, Jiayin Gu, and Kechen Wang for sharing with us insights from that were crucial to this work, and for much other useful advice about the application of the EFT formalism. M. E. P. thanks Kirsten Sachs for arranging a visit to DESY that was essential to this collaboration. T. B., S. J., and M. E. P. were supported by the U.S. Department of Energy under Contract No. DE–AC02–76SF00515. T. B. was also supported by a KEK Short-Term Invited Fellowship. He thanks the KEK ILC group for hospitality during this visit. S. J ...
The authors are grateful to CNPq, CAPES, and FAPEMA (Brazilian research agencies) for the financial support.
Sources of information:
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