Laser Cooling and Spectroscopy of Relativistic C $$^{3+}$$ Beams at the ESR

Schramm, U.; Bußmann, Michael; Habs, D.; Steck, M.; Kühl, T.; Beckert, K.; Béller, P.; Franzke, B.; Nolden, F.; Saathoff, G.; Reinhardt, S.; Karpuk, S.

doi:10.1007/s10751-005-9217-x

Cited by 14 publications

(5 citation statements)

References 20 publications

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“…7 or 8 ), of high importance for the astrophysical community where they are used for diagnostics of hot plasmas in the interstellar medium and stellar atmospheres 9 . The wavelengths of the two transitions have also been determined during a previous laser-cooling experiment at the ESR 10 , but were in conflict with earlier results from plasma spectroscopy 11 and from interferometric measurements 9 . In this new measurement special emphasis is therefore placed on a careful calibration of all experimental components and a thorough analysis of the systematic uncertainties.…”

Section: Introductionmentioning

confidence: 59%

“…', the corresponding contribution to the error budget of the wavelength has been estimated by omitting the correction from the analysis. 11 1963 plasma spectroscopy 155.0774 (10) 154.8202(10) Theory: Yerokhin et al 8 2017 RCI a 155.080 (29) 154.827(36) Borschevsky 35 2014 FSCC b 155.075 154.820 Tupitsyn et al 10 2003 n/a 155.0739 (26) 154.8173(53) Johnson et al 36 1996 RMBPT c 155.078 154.819 Kim et al 37 1991…”

Section: Resonance Analysismentioning

confidence: 99%

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Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Winzen

Hannen

Bußmann

et al. 2020

Preprint

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The and 2S1/2 - 2P1/2 and 2S1/2 - 2P3/2 transitions in Li-like carbon ions stored and cooled at a velocity of β ≈ 0.47 in the Experimental Storage Ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths have been obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system used to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry could be resolved and agreement between experiment and theory is confirmed. Nonetheless, the experimental uncertainty is still smaller than that of state-of-the art theory.

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Section: Introductionmentioning

confidence: 59%

Section: Resonance Analysismentioning

confidence: 99%

Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Winzen

Hannen

Bußmann

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 60%

Laser spectroscopy of the $^2S_{1/2} - ^2P_{1/2}$, $^2P_{3/2}$ transitions in stored and cooled relativistic C$^{3+}$ ions

Winzen,

Hannen,

Bussmann

et al. 2020

Preprint

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The 2 S 1/2 − 2 P 1/2 and 2 S 1/2 − 2 P 3/2 transitions in Li-like carbon ions stored and cooled at a velocity of β ≈ 0.47 in the Experimental Storage Ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths have been obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system used to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry could be resolved and agreement between experiment and theory is confirmed. Nonetheless, the experimental uncertainty is still smaller than that of state-of-the art theory.

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“…Development of electron cooling schemes for ultra relativistic ion beams are underway at BNL [52], for example. The new HE-storage rings at the FAIR facility in Germany will in time enable experiments with laser cooling of highly relativistic beams [53].…”

Section: B Momentum Spread Requirements and Coulomb Crystals In Stormentioning

confidence: 99%

Measuring neutrino mass with radioactive ions in a storage ring

Lindroos

McElrath

Orme

et al. 2010

J. Phys.: Conf. Ser.

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We propose a method to measure the neutrino mass kinematically using beams of ions which undergo beta decay. The idea is to tune the ion beam momentum so that in most decays, the electron is forward moving with respect to the beam, and only in decays near the endpoint is the electron moving backwards. Then, by counting the backward moving electrons one can observe the effect of neutrino mass on the beta spectrum close to the endpoint. In order to reach sensitivities for m ν < 0.2 eV, it is necessary to control the ion momentum with a precision better than δp/p < 10 −5 , identify suitable nuclei with low Q-values (in the few to ten keV range), and one must be able to observe at least O(10 18 ) decays.

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Laser Cooling and Spectroscopy of Relativistic C $$^{3+}$$ Beams at the ESR

Cited by 14 publications

References 20 publications

Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Laser spectroscopy of the $^2S_{1/2} - ^2P_{1/2}$, $^2P_{3/2}$ transitions in stored and cooled relativistic C$^{3+}$ ions

Measuring neutrino mass with radioactive ions in a storage ring

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