Observation of non-exponential orbital electron capture decays of hydrogen-like 140Pr and 142Pm ions

Yu A. Litvinov; F. Bosch; N. Winckler; D. Boutin; H. G. Essel; T. Faestermann; H. Geissel; S. Hess; P. Kienle; R. Knöbel; C. Kozhuharov; J. Kurcewicz; L. Maier; K. Beckert; P. Beller; C. Brandau; L. Chen; C. Dimopoulou; B. Fabian; A. Fragner; E. Haettner; M. Hausmann; S. A. Litvinov; M. Mazzocco; F. Montes; A. Musumarra; C. Nociforo; F. Nolden; W. Plaß; A. Prochazka; R. Reda; R. Reuschl; C. Scheidenberger; M. Steck; T. Stöhlker; S. Torilov; M. Trassinelli; B. Sun; H. Weick; M. Winkler

doi:10.1016/j.physletb.2008.04.062

Observation of non-exponential orbital electron capture decays of hydrogen-like ¹⁴⁰Pr and ¹⁴²Pm ions

Yu A. Litvinov^*
, F. Bosch
, N. Winckler
, D. Boutin
, H. G. Essel
, T. Faestermann
, H. Geissel
, S. Hess
, P. Kienle
, R. Knöbel
, C. Kozhuharov
, J. Kurcewicz
, L. Maier
, K. Beckert
, P. Beller
, C. Brandau
, L. Chen
, C. Dimopoulou
, B. Fabian
, A. Fragner

E. Haettner, M. Hausmann, S. A. Litvinov, M. Mazzocco, F. Montes, A. Musumarra, C. Nociforo, F. Nolden, W. Plaß, A. Prochazka, R. Reda, R. Reuschl, C. Scheidenberger, M. Steck, T. Stöhlker, S. Torilov, M. Trassinelli, B. Sun, H. Weick, M. Winkler

^*Corresponding author for this work

GSI Helmholtz Centre for Heavy Ion Research
Justus Liebig University Giessen
Technical University of Munich
Austrian Academy of Sciences
Michigan State University
National Institute for Nuclear Physics
University of Catania
Heidelberg University
St. Petersburg State University
Peking University

Research output: Contribution to journal › Article › peer-review

125 Scopus citations

Abstract

We report on time-modulated two-body weak decays observed in the orbital electron capture of hydrogen-like ¹⁴⁰Pr⁵⁹⁺ and ¹⁴²Pm⁶⁰⁺ ions coasting in an ion storage ring. Using non-destructive single ion, time-resolved Schottky mass spectrometry we found that the expected exponential decay is modulated in time with a modulation period of about 7 seconds for both systems. Tentatively this observation is attributed to the coherent superposition of finite mass eigenstates of the electron neutrinos from the weak decay into a two-body final state.

Original language	English
Pages (from-to)	162-168
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	664
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2008.04.062
State	Published - 19 Jun 2008
Externally published	Yes

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Litvinov, Y. A., Bosch, F., Winckler, N., Boutin, D., Essel, H. G., Faestermann, T., Geissel, H., Hess, S., Kienle, P., Knöbel, R., Kozhuharov, C., Kurcewicz, J., Maier, L., Beckert, K., Beller, P., Brandau, C., Chen, L., Dimopoulou, C., Fabian, B., ... Winkler, M. (2008). Observation of non-exponential orbital electron capture decays of hydrogen-like ¹⁴⁰Pr and ¹⁴²Pm ions. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 664(3), 162-168. https://doi.org/10.1016/j.physletb.2008.04.062

@article{a94c570118c54bb08c82920ea0e0bbef,

title = "Observation of non-exponential orbital electron capture decays of hydrogen-like 140Pr and 142Pm ions",

abstract = "We report on time-modulated two-body weak decays observed in the orbital electron capture of hydrogen-like 140Pr59+ and 142Pm60+ ions coasting in an ion storage ring. Using non-destructive single ion, time-resolved Schottky mass spectrometry we found that the expected exponential decay is modulated in time with a modulation period of about 7 seconds for both systems. Tentatively this observation is attributed to the coherent superposition of finite mass eigenstates of the electron neutrinos from the weak decay into a two-body final state.",

author = "Litvinov, \{Yu A.\} and F. Bosch and N. Winckler and D. Boutin and Essel, \{H. G.\} and T. Faestermann and H. Geissel and S. Hess and P. Kienle and R. Kn{\"o}bel and C. Kozhuharov and J. Kurcewicz and L. Maier and K. Beckert and P. Beller and C. Brandau and L. Chen and C. Dimopoulou and B. Fabian and A. Fragner and E. Haettner and M. Hausmann and Litvinov, \{S. A.\} and M. Mazzocco and F. Montes and A. Musumarra and C. Nociforo and F. Nolden and W. Pla{\ss} and A. Prochazka and R. Reda and R. Reuschl and C. Scheidenberger and M. Steck and T. St{\"o}hlker and S. Torilov and M. Trassinelli and B. Sun and H. Weick and M. Winkler",

year = "2008",

month = jun,

day = "19",

doi = "10.1016/j.physletb.2008.04.062",

language = "英语",

volume = "664",

pages = "162--168",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3",

}

Litvinov, YA, Bosch, F, Winckler, N, Boutin, D, Essel, HG, Faestermann, T, Geissel, H, Hess, S, Kienle, P, Knöbel, R, Kozhuharov, C, Kurcewicz, J, Maier, L, Beckert, K, Beller, P, Brandau, C, Chen, L, Dimopoulou, C, Fabian, B, Fragner, A, Haettner, E, Hausmann, M, Litvinov, SA, Mazzocco, M, Montes, F, Musumarra, A, Nociforo, C, Nolden, F, Plaß, W, Prochazka, A, Reda, R, Reuschl, R, Scheidenberger, C, Steck, M, Stöhlker, T, Torilov, S, Trassinelli, M, Sun, B, Weick, H & Winkler, M 2008, 'Observation of non-exponential orbital electron capture decays of hydrogen-like ¹⁴⁰Pr and ¹⁴²Pm ions', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 664, no. 3, pp. 162-168. https://doi.org/10.1016/j.physletb.2008.04.062

TY - JOUR

T1 - Observation of non-exponential orbital electron capture decays of hydrogen-like 140Pr and 142Pm ions

AU - Litvinov, Yu A.

AU - Bosch, F.

AU - Winckler, N.

AU - Boutin, D.

AU - Essel, H. G.

AU - Faestermann, T.

AU - Geissel, H.

AU - Hess, S.

AU - Kienle, P.

AU - Knöbel, R.

AU - Kozhuharov, C.

AU - Kurcewicz, J.

AU - Maier, L.

AU - Beckert, K.

AU - Beller, P.

AU - Brandau, C.

AU - Chen, L.

AU - Dimopoulou, C.

AU - Fabian, B.

AU - Fragner, A.

AU - Haettner, E.

AU - Hausmann, M.

AU - Litvinov, S. A.

AU - Mazzocco, M.

AU - Montes, F.

AU - Musumarra, A.

AU - Nociforo, C.

AU - Nolden, F.

AU - Plaß, W.

AU - Prochazka, A.

AU - Reda, R.

AU - Reuschl, R.

AU - Scheidenberger, C.

AU - Steck, M.

AU - Stöhlker, T.

AU - Torilov, S.

AU - Trassinelli, M.

AU - Sun, B.

AU - Weick, H.

AU - Winkler, M.

PY - 2008/6/19

Y1 - 2008/6/19

N2 - We report on time-modulated two-body weak decays observed in the orbital electron capture of hydrogen-like 140Pr59+ and 142Pm60+ ions coasting in an ion storage ring. Using non-destructive single ion, time-resolved Schottky mass spectrometry we found that the expected exponential decay is modulated in time with a modulation period of about 7 seconds for both systems. Tentatively this observation is attributed to the coherent superposition of finite mass eigenstates of the electron neutrinos from the weak decay into a two-body final state.

AB - We report on time-modulated two-body weak decays observed in the orbital electron capture of hydrogen-like 140Pr59+ and 142Pm60+ ions coasting in an ion storage ring. Using non-destructive single ion, time-resolved Schottky mass spectrometry we found that the expected exponential decay is modulated in time with a modulation period of about 7 seconds for both systems. Tentatively this observation is attributed to the coherent superposition of finite mass eigenstates of the electron neutrinos from the weak decay into a two-body final state.

UR - https://www.scopus.com/pages/publications/44449110117

U2 - 10.1016/j.physletb.2008.04.062

DO - 10.1016/j.physletb.2008.04.062

M3 - 文章

AN - SCOPUS:44449110117

SN - 0370-2693

VL - 664

SP - 162

EP - 168

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Observation of non-exponential orbital electron capture decays of hydrogen-like ¹⁴⁰Pr and ¹⁴²Pm ions

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