Enhanced T-odd, P-odd electromagnetic moments in reflection asymmetric nuclei

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.56.1357· OSTI ID:542306

Spevak, V; Auerbach, N ^[1]; Flambaum, V V ^[2]

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1. School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978 (Israel)
2. School of Physics, University of New South Wales, Sydney, 2052, NSW (Australia)

Collective P- and T-odd moments produced by parity and time invariance violating forces in reflection asymmetric nuclei are considered. The enhanced collective Schiff, electric dipole, and octupole moments appear due to the mixing of rotational levels of opposite parity. These moments can exceed single-particle moments by more than 2 orders of magnitude. The enhancement is due to the collective nature of the intrinsic moments and the small energy separation between members of parity doublets. In turn these nuclear moments induce enhanced T- and P-odd effects in atoms and molecules. A simple estimate is given and a detailed theoretical treatment of the collective T-, P-odd electric moments in reflection asymmetric, odd-mass nuclei is presented. In the present work we improve on the simple liquid drop model by evaluating the Strutinsky shell correction and include corrections due to pairing. Calculations are performed for octupole deformed long-lived odd-mass isotopes of Rn, Fr, Ra, Ac, and Pa and the corresponding atoms. Experiments with such atoms may improve substantially the limits on time reversal violation. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542306
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 56; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ACTINIUM
ACTINIUM ISOTOPES
COLLECTIVE MODEL
DEFORMED NUCLEI
FRANCIUM
FRANCIUM ISOTOPES
LIQUID DROP MODEL
NUCLEAR ELECTRIC MOMENTS
NUCLEAR MAGNETIC MOMENTS
P INVARIANCE
PROTACTINIUM
PROTACTINIUM ISOTOPES
RADIUM
RADIUM ISOTOPES
RADON
RADON ISOTOPES
REFLECTION
ROTATIONAL STATES
SHELL MODELS
T INVARIANCE