Abstract
The half-lives of fully ionized and hydrogen-like (H-like) 122I ions have been measured in a heavy-ion storage ring. The \( \beta^{+}_{}\) -decay constants for both charge states and the electron capture (EC) decay constant of H-like ions have been determined. The EC-decay constant in H-like 122I ions \(\ensuremath \lambda^{\text{H-like}}_{\rm EC}=7.35(33)\cdot10^{-4}{\,\mbox{s}}^{-1}\) is, within the uncertainty, the same as the one in neutral atoms. This result is in agreement with the estimates of recent theoretical considerations on the EC-decay of few-electron ions that explicitly take into account the conservation of the total angular momentum of the nucleus plus lepton(s) system and its projections. No firm confirmation could be concluded from our results on the predicted effect that allowed Gamow-Teller transitions become forbidden if the initial and final total angular momenta are not equal.-1
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References
Yu.A. Litvinov, F. Bosch, Rep. Prog. Phys. 74, 016301 (2011)
W. Bambynek et al., Rev. Mod. Phys. 49, 77 (1977)
M. Jung et al., Phys. Rev. Lett. 69, 2164 (1992)
F. Bosch et al., Phys. Rev. Lett. 77, 5190 (1996)
Yu.A. Litvinov et al., Phys. Lett. B 573, 80 (2003)
B. Sun et al., Phys. Lett. B 688, 294 (2010)
K. Takahashi, K. Yokoi, Nucl. Phys. A 404, 578 (1983)
K. Takahashi, K. Yokoi, At. Data Nucl. Data Tables 36, 375 (1987)
Yu.A. Litvinov et al., Phys. Rev. Lett. 99, 262501 (2007)
H. Geissel et al., Eur. Phys. J. ST 150, 109 (2007)
Yu.A. Litvinov et al., Phys. Lett. B 664, 162 (2008)
N. Winckler et al., Phys. Lett. B 679, 36 (2009)
National Nuclear Data Center, http://www.nndc.bnl.gov/
Z. Patyk et al., Phys. Rev. C 77, 014306 (2008)
A.N. Ivanov et al., Phys. Rev. C 78, 025503 (2008)
Yu.A. Litvinov, Int. J. Mod. Phys. E 18, 323 (2009)
K. Siegień-Iwaniuk et al., Phys. Rev. C 84, 014301 (2011)
H. Geissel et al., Phys. Rev. Lett. 68, 3412 (1992)
Yu.A. Litvinov et al., Acta Phys. Polon. B 41, 511 (2010)
X.L. Tu et al., Phys. Rev. Lett. 106, 112501 (2011)
Yu.A. Litvinov, H.S. Xu, Nucl. Phys. News 21, 20 (2011)
H. Geissel et al., Nucl. Instrum. Methods B 70, 286 (1992)
C. Scheidenberger et al., Nucl. Instrum. Methods B 142, 441 (1998)
F. Nolden et al., Nucl. Instrum. Methods A 532, 329 (2004)
M. Steck et al., Nucl. Instrum. Methods A 532, 357 (2004)
B. Franzke, H. Geissel, G. Münzenberg, Mass Spectrom. Rev. 27, 428 (2008)
T. Radon et al., Nucl. Phys. A 677, 75 (2000)
Yu.A. Litvinov et al., Phys. Rev. Lett. 95, 042501 (2005)
Yu.A. Litvinov et al., Nucl. Phys. A 756, 3 (2005)
F. Bosch et al., Int. J. Mass Spectr. 251, 212 (2006)
L. Chen et al., Phys. Rev. Lett. 102, 122503 (2009)
M.W. Reed et al., Phys. Rev. Lett. 105, 172501 (2010)
L. Chen et al., Phys. Lett. B 691, 234 (2010)
T. Ohtsubo et al., Phys. Rev. Lett. 95, 052501 (2005)
F. Bosch, Hyperf. Interact. 173, 1 (2006)
C. Scheidenberger et al., Hyperf. Interact. 173, 61 (2006)
B. Schlitt, Schottky mass spectrometry at the heavy ion storage ring ESR, Doctoral Thesis, Ruprecht-Karls-Universität Heidelberg (1997)
J.S. Bendat, A.G. Piersol, Engineering Applications of Correlation and Spectral Analysis (John Wiley & Sons, New York, 1980)
R.B. Randall, B. Tech, Frequency Analysis, third edition (Brüel & Kjær, Nærum, 1987)
N.J. Stone, Nucl. Data Sheets 112, 75 (2011)
P. Seelig et al., Phys. Rev. Lett. 81, 4824 (1998)
H. Primakoff, Rev. Mod. Phys. 31, 802 (1959)
G.L. Borchert et al., Phys. Lett. A 63, 15 (1977)
L.M. Folan, V.I. Tsifrinovich, Phys. Rev. Lett. 74, 499 (1995)
V.F. Bratsev, G.B. Deyneka, I.I. Tupitsyn, Bull. Acad. Sci. USSR Phys. Ser. 41, 173 (1977)
L. Batist, Experimental Proposal, GSI (2011)
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Atanasov, D.R., Winckler, N., Balabanski, D. et al. Half-life measurements of stored fully ionized and hydrogen-like 122 I ions. Eur. Phys. J. A 48, 22 (2012). https://doi.org/10.1140/epja/i2012-12022-9
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DOI: https://doi.org/10.1140/epja/i2012-12022-9