Hyperfine structure of the level in trapped short-lived 211, 209Ra+ ions

Versolato, Oscar; Giri, G. S.; Berg, J. E. van den; Böll, Oliver; Dammalapati, U.; Hoek, D.J. van der; Hoekstra, Steven; Jungmann, K.; Kruithof, W.L.; Müller, S.; Portela, Mayerlin Nunez; Onderwater, C. J. G.; Santra, B.; Timmermans, Robertus; Wansbeek, L. W.; Willmann, Lorenz; Wilschut, H. W.

doi:10.1016/j.physleta.2011.07.002

Cited by 18 publications

(18 citation statements)

References 19 publications

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“…Such an experiment, currently in progress at KVI [4][5][6], could improve on the APV measurement performed in atomic 133 Cs [7][8][9] and be a competitive low-energy test of the electroweak theory. To interpret such measurements the atomic theory of Ra + has to be accurate to a sub-1% level.…”

Section: Introductionmentioning

confidence: 99%

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Charge radii of radium isotopes

et al. 2012

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We present a combined analysis of the available isotope-shift data from the optical spectra of Ra atoms and Ra + ions. Atomic structure calculations of the field-shift and specific mass-shift constants of the low-lying levels in Ra + are used. The nuclear radial differences δ r 2 for the radium isotopes are derived and compared to previous analyses and nuclear models. We discuss the relevance of our results to measurements of atomic parity violation in a chain of Ra + isotopes.

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Section: Introductionmentioning

confidence: 99%

“…III we present the available experimental data from the optical spectra of Ra and Ra + and present the results of the data analysis. We include the data for Ra and Ra + from the ISOLDE Collaboration, as well as the data for Ra + recently measured at KVI [4][5][6]. Next, in Sec.…”

Section: Introductionmentioning

confidence: 99%

Charge radii of radium isotopes

et al. 2012

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“…However, the exploitation of the sensitivity of a radium ion relies on high precision atomic structure calculations which require experimental input to evaluate their accuracy. We have determined the hyperfine structure in the 6d 2 D 3/2 state for 209,211,213 Ra, the lifetime of the 6d 2 D 3/2 state [9,21] and isotopes shifts [22] for the 209−214 Ra isotopes. The hyperfine structure of 213 Ra obtained with buffer gas cooled ions in a linear Paul-trap is given in Fig.…”

Section: Atomic Parity Violation In a Single Trapped Radium Ionmentioning

confidence: 99%

Trapped radioactive isotopes for fundamental symmetry investigations

et al. 2012

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Discrete symmetries tested in high precision atomic physics experiments provide guidance to model building beyond the Standard Model (SM). Here experimental opportunities arise for searches for permanent electric dipole moments (EDMs) and measurements of atomic parity violation (APV). Heavy atoms are favorable for such experiments since symmetry violating effects in atoms increase faster than the third power of the nuclear charge Z. Of special interest are isotopes of the heavy alkaline earth element radium (Z=88) since they offer large enhancement factors for EDMs and provide a new experimental road towards high precision measurements of atomic parity violation. These opportunities are exploited at the TRIμP facility at KVI, Groningen.

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“…Radium isotopes were produced by the method of inverse reaction kinematics using 206,204 Pb beams hitting a rotating carbon target 35,36 . Precision laser spectroscopy of radium ions was performed in a radio frequency quadrupole (RFQ) trap 13,[37][38][39] . At the University of Groningen, The Netherlands, with 229 Th (10 µCi) placed in an oven, 225 Ra neutral atomic beam was produced.…”

Section: Introductionmentioning

confidence: 99%

Compilation of Spectroscopic Data of Radium (Ra I and Ra II)

Dammalapati

Jungmann

Willmann

2016

Journal of Physical and Chemical Reference Data

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Energy levels, wavelengths, lifetimes and hyperfine structure constants for the isotopes of the first and second spectra of radium, Ra I and Ra II have been compiled. Wavelengths and wave numbers are tabulated for 226 Ra and for other Ra isotopes. Isotope shifts and hyperfine structure constants of even and odd-A isotopes of neutral radium atom and singly ionized radium are included. Experimental lifetimes of the states for both neutral and ionic Ra are also added, where available. The information is beneficial for present and future experiments aimed at different physics motivations using neutral Ra and singly ionized Ra.

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Hyperfine structure of the level in trapped short-lived 211, 209Ra+ ions

Cited by 18 publications

References 19 publications

Charge radii of radium isotopes

Charge radii of radium isotopes

Trapped radioactive isotopes for fundamental symmetry investigations

Compilation of Spectroscopic Data of Radium (Ra I and Ra II)

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