Выдержка
An experiment addressing electron capture (EC) decay of hydrogen-like Pm60+142 ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to be purely exponential and no modulations were observed. Decay times for about 9000 individual EC decays have been measured by applying the single-ion decay spectroscopy method. Both visually and automatically analysed data can be described by a single exponential decay with decay constants of 0.0126(7)s−1 for automatic analysis and 0.0141(7)s−1 for manual analysis. If a modulation superimposed on the exponential decay curve is assumed, the best fit gives a modulation amplitude of merely 0.019(15), which is compatible with zero and by 4.9 standard deviations smaller than in the original observation which had an amplitude of 0.23(4).
| Язык оригинала | английский |
|---|---|
| Номер статьи | 134800 |
| Число страниц | 9 |
| Журнал | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Том | 797 |
| DOI | |
| Состояние | Опубликовано - 10 окт 2019 |
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Предметные области Scopus
- Ядерная физика и физика высоких энергий
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New test of modulated electron capture decay of hydrogen-like Pm-142 ions : Precision measurement of purely exponential decay. / FRS-ESR, ILIMA, SPARC, and TBWD Collaborations.
В: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Том 797, 134800, 10.10.2019.Результат исследований: Научные публикации в периодических изданиях › статья
TY - JOUR
T1 - New test of modulated electron capture decay of hydrogen-like Pm-142 ions
T2 - Precision measurement of purely exponential decay
AU - FRS-ESR, ILIMA, SPARC, and TBWD Collaborations
AU - Ozturk, F. C.
AU - Akkus, B.
AU - Atanasov, D.
AU - Beyer, H.
AU - Bosch, F.
AU - Boutin, D.
AU - Brandau, C.
AU - Bühler, P.
AU - Cakirli, R. B.
AU - Chen, R. J.
AU - Chen, W. D.
AU - Chen, X. C.
AU - Dillmann, I.
AU - Dimopoulou, C.
AU - Enders, W.
AU - Essel, H. G.
AU - Faestermann, T.
AU - Forstner, O.
AU - Gao, B. S.
AU - Geissel, H.
AU - Gernhäuser, R.
AU - Grisenti, R. E.
AU - Gumberidze, A.
AU - Hagmann, S.
AU - Heftrich, T.
AU - Heil, M.
AU - Herdrich, M. O.
AU - Hillenbrand, P. M.
AU - Izumikawa, T.
AU - Kienle, P.
AU - Klaushofer, C.
AU - Kleffner, C.
AU - Kozhuharov, C.
AU - Knöbel, R. K.
AU - Kovalenko, O.
AU - Kreim, S.
AU - Kühl, T.
AU - Lederer-Woods, C.
AU - Lestinsky, M.
AU - Litvinov, S. A.
AU - Litvinov, Yu A.
AU - Liu, Z.
AU - Ma, X. W.
AU - Maier, L.
AU - Sun, B. H.
AU - Torilov, S. Yu
AU - Wang, M.
AU - Yang, J. C.
AU - Zhang, Y. H.
AU - Zhou, X. H.
PY - 2019/10/10
Y1 - 2019/10/10
N2 - An experiment addressing electron capture (EC) decay of hydrogen-like Pm60+142 ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to be purely exponential and no modulations were observed. Decay times for about 9000 individual EC decays have been measured by applying the single-ion decay spectroscopy method. Both visually and automatically analysed data can be described by a single exponential decay with decay constants of 0.0126(7)s−1 for automatic analysis and 0.0141(7)s−1 for manual analysis. If a modulation superimposed on the exponential decay curve is assumed, the best fit gives a modulation amplitude of merely 0.019(15), which is compatible with zero and by 4.9 standard deviations smaller than in the original observation which had an amplitude of 0.23(4).
AB - An experiment addressing electron capture (EC) decay of hydrogen-like Pm60+142 ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to be purely exponential and no modulations were observed. Decay times for about 9000 individual EC decays have been measured by applying the single-ion decay spectroscopy method. Both visually and automatically analysed data can be described by a single exponential decay with decay constants of 0.0126(7)s−1 for automatic analysis and 0.0141(7)s−1 for manual analysis. If a modulation superimposed on the exponential decay curve is assumed, the best fit gives a modulation amplitude of merely 0.019(15), which is compatible with zero and by 4.9 standard deviations smaller than in the original observation which had an amplitude of 0.23(4).
KW - Heavy ion storage ring
KW - Orbital electron capture
KW - Single particle decay spectroscopy
KW - Two body weak decay
KW - STORAGE
KW - SCHOTTKY-MASS-SPECTROMETRY
KW - </bold>
KW - FRS
KW - HEAVY-IONS
KW - STATE
KW - STORED EXOTIC NUCLEI
KW - LISE
KW - Heavy ion storage ring<bold>
KW - ISOMERS
KW - OSCILLATIONS
UR - http://www.scopus.com/inward/record.url?scp=85069934221&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/new-test-modulated-electron-capture-decay-hydrogenlike-142pm-ions-precision-measurement-purely-expon
U2 - 10.1016/j.physletb.2019.134800
DO - 10.1016/j.physletb.2019.134800
M3 - Article
AN - SCOPUS:85069934221
VL - 797
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
M1 - 134800
ER -