Parity nonconservation in Fr-like actinide and Cs-like rare-earth-metal ions

Abstract

Parity nonconservation amplitudes are calculated for the 7s-6d transitions of the francium isoelectronic sequence (Fr, Ra +, Ac 2+, Th 3+, Pa 4+, U 5+ and Np 6+) and for the 6s-5d transitions of the cesium isoelectronic sequence (Cs, Ba +, La 2+, Ce 3+ and Pr 4+). We show in particular that isotopes of La 2+, Ac 2+ and Th 3+ ions have strong potential in the search for new physics beyond the standard model - the PNC amplitudes are large, the calculations are accurate and the nuclei are practically stable. In addition, 232-Th 3+ ions have recently been trapped and cooled [C. J. Campbell et al., Phys. Rev. Lett. 102, 233004 (2009)]. We also extend previous works by calculating the s-s PNC transitions in Ra + and Ba +, and provide new calculations of several energy levels, and electric dipole and quadrupole transition amplitudes for the Fr-like actinide ions.

7 pages, 1 figure. calculations expanded

References in corpus (5)

• Highly charged ions with E1, M1, and E2 transitions within laser range
• Quantum electrodynamics corrections to energies, transition amplitudes and parity nonconservation in Rb, Cs, Ba${}^{+}$, Tl, Fr and Ra${}^{+}$
• Excitation energies, polarizabilities, multipole transition rates, and lifetimes in Th IV
• Relativistic many-body calculation of energies, oscillator strengths, transition rates, lifetimes, polarizabilities, and quadrupole moment of Fr-like Th IV ion
• Sensitivity test of a blue-detuned dipole trap designed for parity non-conservation measurements in Fr

Cited by in corpus (25)

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• Forbidden M1 and E2 transitions in monovalent atoms and ions
• Towards highly accurate calculations of parity violation in chiral molecules: relativistic coupled-cluster theory including QED-effects
• The hyperfine anomaly in heavy atoms and its role in precision atomic searches for new physics
• Enhanced spin-dependent parity non-conservation effect in the $7s{}^2{S}_{1/2}\to 6d{}^2{D}_{5/2}$ transition in Fr: A possibility for unambiguous detection of nuclear anapole moment
• All-order calculations of the spectra of Ba II, Ra II, Fr I and superheavy elements E119 I and E120 II
• Strongly enhanced atomic parity violation due to close levels of opposite parity
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• Relativistic coupled-cluster calculation of hyperfine-structure constants of ${}^{229}$Th${}^{3+}$ and evaluation of the electromagnetic nuclear moments of ${}^{229}$Th
• Detection of missing low-lying atomic states in actinium
• Measurement of the $7p{}^2{P}_{3/2}$ state branching fractions in ${\mathrm{Ra}}^{+}$
• Calculations of the atomic structure for the low-lying states of actinium
• Deciphering Core, Valence and Double-Core-Polarization Contributions to Parity Violating Amplitudes in ${}^{133}$Cs using Different Methods
• Role of triple excitations in calculating different properties of Ba+
• Measurement of the Ra${}^{+}$ $7p$ ${}^2{P}_{3/2}$ state lifetime
• Optogalvanic spectroscopy of the hyperfine structure of the $5p^{6}5d$ ${}^2{D}_{3/2,5/2}$ and $5p^{6}4f$ ${}^2{F}_{5/2,7/2}^o$ levels of La III
• Theoretical characterisation of the barium II and radium II ions
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• Commissioning and Full Realization of the PLASEN System at BRIF
• Breit corrections to moderately charged ions in all-orders calculations