Study of X-rays and nuclear γ-rays in muonic thallium

Backe, H.; Engfer, R.; Jahnke, U.; Kankeleit, E.; Pearce, R.M.; Petitjean, C.; Schellenberg, L.; Schneuwly, H.; Schröder, W. U.; Walter, H.K.; Zehnder, A.

doi:10.1016/0375-9474(72)90309-0

Cited by 86 publications

(17 citation statements)

References 84 publications

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“…The ground state HFS have been measured in muonic atoms to a precision of a few percent in 209 Bi [61] and 203,205 Tl [62]. Unfortunately, the uncertainties do not allow to distinguish between different nuclear models.…”

Section: B Highlights Of Hyperfine Splitting Experimentsmentioning

confidence: 99%

Nuclear effects in atomic transitions

Pálffy

2010

Contemporary Physics

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Atomic electrons are sensitive to the properties of the nucleus they are bound to, such as nuclear mass, charge distribution, spin, magnetization distribution, or even excited level scheme. These nuclear parameters are reflected in the atomic transition energies. A very precise determination of atomic spectra may thus reveal information about the nucleus, otherwise hardly accessible via nuclear physics experiments. This work reviews theoretical and experimental aspects of the nuclear effects that can be identified in atomic structure data. An introduction to the theory of isotope shifts and hyperfine splitting of atomic spectra is given, together with an overview of the typical experimental techniques used in high-precision atomic spectroscopy. More exotic effects at the borderline between atomic and nuclear physics, such as parity violation in atomic transitions due to the weak interaction, or nuclear polarization and nuclear excitation by electron capture, are also addressed.

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Section: B Highlights Of Hyperfine Splitting Experimentsmentioning

confidence: 99%

Nuclear effects in atomic transitions

Pálffy

2010

Contemporary Physics

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“…A "zero calibration" event is defined by: Ge(Li) 0i (see Fig. 2 of [37]). The length of the time gate (~300 ns) and the counting rate of counter "0" are optimized to a maximal Ge(Li) 0i rate which still is approximately proportional to the beam intensity.…”

Section: The Simultaneous Calibrationmentioning

confidence: 99%

“…The corrections due to the relative non-linearity of the total spectrometer system did not exceed 10 .4 between 200 and 400 keV. To distinguish between prompt events of muonic X-rays and delayed events from muon capture reactions a time to amplitude converter (TAC) was used to measure the time of the fast Ge(Li) signals with respect to a #-stop (12321, see [37]). Three time windows on the TAC spectra select "prompt events" (30 ns), "early delayed" (30 ns) and "delayed events" (80 ns).…”

Section: Energy Resolutionmentioning

confidence: 99%

“…The apparatus of the Berlin-DarmstadtFribourg-Z~rich collaboration at the CERN synchrocyclotron, described in [25,37] has been used. Special attention was paid to the energy calibration on which we report in the following.…”

Section: The Experimental Arrangementmentioning

confidence: 99%

“…The spectra were reconstructed and fitted as described in [37]. When fitting a group of unresolved fine structure components, only the height, position and width of the strongest component were taken as free parameters.…”

Section: Analysis Of the Spectramentioning

confidence: 99%

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Test of electron screening and vacuum polarization in heavy muonic atoms

et al. 1976

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Energies of higher # X-rays have been measured in l~ natHg and 2~ to test the vacuum polarization correction and the electron screening effect in heavy muonic atoms. For tests of the energy calibration delayed nuclear 7-rays from the #-capture reaction were used. The experimental data agree to better than 4% with self-consistent Hartree-Fock calculations of the electron screening. Transitions which are sensitive to the vacuum polarization correction mainly, verify the calculations to better than 1.5 %. Comparing all at present existing experiments with latest calculations no significant deviation of more than 0.7 % of the vacuum polarization correction can be deduced.

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81-Tl Thallium

Fricke

Heilig

Nuclear Charge Radii

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Study of X-rays and nuclear γ-rays in muonic thallium

Cited by 86 publications

References 84 publications

Nuclear effects in atomic transitions

Nuclear effects in atomic transitions

Test of electron screening and vacuum polarization in heavy muonic atoms

81-Tl Thallium

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