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A. E. Barzakh on Muck Rack

A. E. Barzakh

As seen in: Physical Review B
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Articles

Charge radii, moments, and masses of mercury isotopes across the N=126 shell closure

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By T. Day Goodacre, A. V. Afanasjev, A. E. Barzakh, L. Nies
| tu-dresden.de
Combining laser spectroscopy in a Versatile Arc Discharge and Laser Ion Source (VADLIS) with Penning-trap mass spectrometry at the CERN-ISOLDE facility, this work reports on mean-square charge radii of neutron-rich mercury isotopes across the N=126 shell closure, the electromagnetic moments of Hg207, and more precise mass values of Hg206-208.
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Bohr-Weisskopf effect in the potassium isotopes

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By V. A. Yerokhin, Yu. A. Demidov, M. G. Kozlov, A. E. Barzakh
| Physical Review B
Abstract The magnetic hyperfine structure constants have been calculated for low-lying levels in aneutral potassium atoms taking into account the Bohr-Weisskopf (BW) and Breit–Rosenthal (BR) effects. According to our results the 4p1/2 state of K I is free from both BR and BW corrections on the level of the current theoretical uncertainties. Using this finding and the measured values of the A(4p1/2) constants, we corrected the nuclear magnetic moments for several short-lived potassium isotopes.
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Producing gold at ISOLDE-CERN

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By A. E. Barzakh, A. N. Andreyev, D. Atanasov, J. G. Cubiss
| tu-dresden.de
The yield of 18 ion beams of radioactive gold nuclei produced in the thick uranium target at ISOLDE (CERN) by 1.4-GeV protons was measured. The production-efficiency dependence on the half-life (efficiency curve) was derived using the in-target production calculations by the FLUKA-CERN code. The irregularities in the efficiency curve for long-lived high-spin gold isomers (187,191,193Aum) were found. Three release models were tested for the efficiency-curve description.
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