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Alkali Earth Ion Spectroscopy in Preparation of a Weinberg Angle Measurement
Valappol, N., Dijck, E., Hofsteenge, A., Mohanty, A., Willmann, L. & Jungmann, K-P., 12-Sep-2017.Research output: Contribution to conference › Poster › Academic
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Alkali Earth Ion Spectroscopy in Preparation of a Weinberg Angle Measurement. / Valappol, Nivedya; Dijck, Elwin; Hofsteenge, Aswin; Mohanty, Amita; Willmann, Lorenz; Jungmann, Klaus-Peter.
2017. Poster session presented at International Conference on Exotic Atoms and Related Topics - EXA2017, Wien, Austria.Research output: Contribution to conference › Poster › Academic
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TY - CONF
T1 - Alkali Earth Ion Spectroscopy in Preparation of a Weinberg Angle Measurement
AU - Valappol, Nivedya
AU - Dijck, Elwin
AU - Hofsteenge, Aswin
AU - Mohanty, Amita
AU - Willmann, Lorenz
AU - Jungmann, Klaus-Peter
PY - 2017/9/12
Y1 - 2017/9/12
N2 - Through precision spectroscopy on Ba+ ions we determine precisely the 6s2S1/2 - 6p2P1/2, 6p2P1/2 - 5d2D3/2, 6s2S1/2 - 5d2D3/2 transition frequencies. In these experiments we employ laser-cooled single trapped ions. The optical frequencies are controlled by a frequency comb and I2 line locked laser system. We have achieved more than 2 orders of magnitude improved values, i.e. we have reached 10−11 relative accuracy. In a further measurement we have determined precisely the lifetime of the lifetime of the 5d2D5/2 state. Our experiment is aimed at precisely testing the available atomic calculations and in particular atomic wave functions the knowledge of which is needed for interpreting a precise measurement of atomic parity violation in heavy alkaline earth atoms through light shifts in the narrow optical 6s2S1/2-5d2D3/2 single photon transition. The weak mixing angle can be determined precisely from the weak interaction contributions between primarily the nuclear neutrons and the atomic valence electron to the atomic binding.Indico - Integrated Digital Conference Powered by IndicoGSI Helmholtzzentrum für Schwerionenforschung GmbH | Planckstr. 1 | 64291 Darmstadt | Telefon: +49-6159-71- 0 | Impressum (in German) | Terms of Use
AB - Through precision spectroscopy on Ba+ ions we determine precisely the 6s2S1/2 - 6p2P1/2, 6p2P1/2 - 5d2D3/2, 6s2S1/2 - 5d2D3/2 transition frequencies. In these experiments we employ laser-cooled single trapped ions. The optical frequencies are controlled by a frequency comb and I2 line locked laser system. We have achieved more than 2 orders of magnitude improved values, i.e. we have reached 10−11 relative accuracy. In a further measurement we have determined precisely the lifetime of the lifetime of the 5d2D5/2 state. Our experiment is aimed at precisely testing the available atomic calculations and in particular atomic wave functions the knowledge of which is needed for interpreting a precise measurement of atomic parity violation in heavy alkaline earth atoms through light shifts in the narrow optical 6s2S1/2-5d2D3/2 single photon transition. The weak mixing angle can be determined precisely from the weak interaction contributions between primarily the nuclear neutrons and the atomic valence electron to the atomic binding.Indico - Integrated Digital Conference Powered by IndicoGSI Helmholtzzentrum für Schwerionenforschung GmbH | Planckstr. 1 | 64291 Darmstadt | Telefon: +49-6159-71- 0 | Impressum (in German) | Terms of Use
UR - https://indico.gsi.de/event/5012/call-for-abstracts/31/
M3 - Poster
T2 - International Conference on Exotic Atoms and Related Topics - EXA2017
Y2 - 11 September 2017 through 15 September 2017
ER -
ID: 47225734